Previous studies have identified the chromophore of PBM using red or NIR wavelengths to be mitochondrial CCO. CCO is one of the four protein complexes (unit IV) composing the electron transport chain that carries out electron transport at the inner mitochondrial membrane, finally generating an electrochemical proton gradient for the final enzyme ATP synthase (unit V) to transform ADP (adenosine diphosphate) to produce ATP [119, 120]. LLLT can increase the CCO enzyme activity to faciliate electron transport and increase ATP production [121]. Furthermore, it has been found that the action spectrum for the biological response in the NIR range matches the absorption spectra of CCO in the NIR attributed to mitochondrial chromophores [63, 122–124]. The absorbance of cytochrome c oxidase in the visible and NIR spectral regions show a good match to the action spectrum for the increase of DNA synthesis in mammalian cells. CCO has two copper centers, CuA and CuB and two heme centers, hemeA and hemeB. Each of these metal centers can be in an oxidized or a reduced state giving a total of 16 possibilities. Different photoacceptors have been attributed to various redox states of CCO, the 820 nm band has been attributed to the oxidized form of CuA chromophore of CCO, the 760 nm band to the reduced foem of CuB, the 680 nm band to the oxidized CuB , and the 620 nm band to the reduced CuA [13, 63].

Infrared light

On the other hand, several other studies have indicated that another possible mechanism of PBM especially at FIR and MIR wavelengths is absorption of radiation by water molecules. Pollack et al. demonstrated that radiant energy can generate an exclusion zone (EZ) in a water interface that possesses the correct type of hydrophilic/hydrophobic balance [65, 125]. EZ water can store electrical charges, and can release up to 70% of the input energy.

Ting-Kai Leung et al. have employed a ceramic powder (manufactured by Bioenergy Development Ltd, Taoyuan, Taiwan) for in vitro and in vivo studies. Its average emissivity was 0.98 at wavelengths between 6–14 μm with non-thermal effects at room temperature. The experimental targets included MCF-7 breast cancer cells, macrophage cells, melanoma cells, myoblast cells, chondrosarcoma cell line, human breast epithelial MCF-10A cells, and knees of rabbits [35]. The most important research result was that this bioceramic preparation could relieve inflammatory arthritis of rabbit knee joints [36]. The rabbits received intra-articular injections of lipopolysaccharide (LPS) to induce sterile inflammation, and were then placed in a cage surrounded by bioceramic-containing layer in the treatment group. Positron mmission tomography (PET) scanning showed that the bioceramic was capable of relieving inflammation in the joints at 7 days after LPS injection.

In addition to understanding the photobiological mechanisms of LLLT/PBM using FIR/MIR and NIR wavelengths, it is important to design the light parameters with regard to clinical experience and the desired therapeutic goal for the optimum medical and biological effects as shown in Figure 3. In clinical practice, the biphasic dose response effect is crucially important for optimal clinical results [30]. Another guiding principle is that repeating the treatment daily (or even more or less often) until the wound is healed or the disease remission is observed is better than only one single application of LLLT. LLLT can be compared to a nutrient food for the human body; an adequate daily intake is best.

In order to clarify the cellular mechanism of NIR laser treatment on acute ischemic stroke patients, the rabbit small clot embolic stroke model was used to evaluate the cortical ATP content after 808 nm laser treatment [101]. A NIR laser in pulsed wave mode or continuous mode could elevate ATP content in the rabbit cortex compared to the sham embolized rabbits, especially pulsed wave mode gave a significantly larger increase in cortical ATP content.

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There’s a hidden trick behind the opaque white panel though: RGB. It is a Razer product after all. The Key Light Chroma offers a choice of 16.8 million colours and a suite of customisable lighting effects which really set this light apart from competitors and proved that in our testing. The brightness and saturation of the colours are strong and the creative potential this offers streamers is rather impressive.

near-infraredlight

Most studies have proposed that the chromophores responsible for PBM effects can be primarily classified as either mitochondrial chromophores such as CCO.

You're trading that extra power in for a range of extra quality of life features here. At such a low price point, that's a valuable trade if you're looking to record closer shots for a vlog or Instagram Live, for example. Overall, you're getting a flexible, USB-powered device with a super low maintenance setup for a great price.

Soccer players have used FIR emitting clothing (density of 225 gm−2, 88% far IR radiation emitting polyamide 66 Emana yarn (PA66) fiber, 12% Spandex, emissivity of 0.88 and power emitted of 341 W/m2 at 37°C at 5–20 μm wavelength range). These garments were used for 10 hours as sleepwear over three successive nights to relieve delayed-onset muscle soreness at 48 h after an intense plyometric exercise session [33].

Webcams have a tricky job for us streamers. We ask them to capture our faces, usually in low light scenes with lots of RGB, and we still expect loads of clarity when we then scale down the footage to an eighth of a display. Ring lights can be super helpful because they help to balance that lighting. If you can't afford the best gear for streaming, ring lights are a clever way of making an average webcam look like it has much better production value. You don't need to limit yourself to a giant piece of set lighting that'll give off equivalent temperatures of the sun for a smaller stream scene. You can pick up a much smaller, much more efficient ring light that will be everything you need for content creation.

You don't need to break the bank either, you'll find cheap ring lights available for as little as $20 / £20, and adding one to your everyday setup will instantly lift your photography.

In addition, amyloid-β protein precursor transgenic mice (a mouse model of Alzheimer’s disease) were treated 3 times/week with various doses of 808nm IR laser [106]. The levels of brain amyloid-β peptide, plasma amyloid-β peptide, and cerebrospinal fluid amyloid-β peptide, and the numbers of amyloid-β plaques in the brain were all reduced by IR laser treatment in a dose-dependent manner. In addition, IR laser-induced ATP generation may also enhance neuronal preservation and inhibit amyloid plaque formation.

There's little wonder this is one of the go-to options for vlogging ring lights. You're getting excellent power, plenty of flexibility, and an ultra-portable device for a great price here. It is worth noting, however, that the attached smartphone holder won't allow for vertical shooting.

You'll also find a smooth dimming adjustment here, moving from 1% to 100%. That's perfect for finding that perfect shot, as other models will lock you into one of around ten brightness settings with little movement for flexibility. Add to that the wide-angle range achieved through a malleable, 270° base plate and you've got a fully customizable ring light perfect for shooting high-quality video.

IR induces in bulk water the release and transport of protons, activating membrane signaling pathways and transmembrane ion channel effects [133].

This Neewer ring light certainly provides plenty of coverage, with a massive 20-inch diameter light that can be fixed onto a supplied 36-inch - 78.7-inch stand. While you're dropping a little power here, with 44W of output that then drops down to 34W when running off battery power, there's a balance here that gives you a wider expanse of softer lighting.

Keywords: Infrared neural stimulation, photoaging, DNA damage, brain neuroprotection, ROS, ATP, water molecules, heating

An 810 nm Ga-Al-As diode laser pulsed at 10-Hz, 100-Hz and continuous mode, with a power density of 50-mW/cm2 for 12-minutes, was used to illuminate the head of mice with an experimental traumatic brain injury (TBI). Mice were sacrificed and analyzed at 2, 15 and 28 days post-TBI. As well as lesion size and quantity of ATP production, the 10 Hz pulse frequency had the best effect on neurological performance [102]. This study suggested that the 4~10 Hz rhythm occurring in the hippocampal region in the normal brain of mice, could enter into positive resonance with the 10 Hz laser pulse frequency to enhance the neurorehabilitation of TBI mice.

The main disadvantage of INS is heat deposition in the tissue, and this could represent an obstacle against development of implantable devices for applications such as artificial cochleas. Recently, a hybrid electro-optical stimulation technique has been developed to combine INS with electrical stimulation [59, 60]. The sciatic nerve of the rat hind-limb was irradiated by a pulsed diode laser (λ = 1875 nm) during electrical stimulation. Furthermore, it was observed that an increase in nerve tissue temperature caused by the optical stimulation could enhance the hybrid electro-optical stimulation response of nerves.

These data taken together indicate that IR radiation may induce promotion of cell viability and growth factors, which elicit potential therapeutic effects on the brain injury or degenerative brain disease. Brain disorders including TBI, Alzheimer’s disease, Parkinson's disease, and stroke could be benefited by IR-induced ATP synthesis, growth factor production, anti-inflammatory effects and anti-apoptosis. [107]. Furthermore, a recent study also indicates that the proliferation and differentiation of adipose-derived stem cells are regulated by 980nm IR radiation that is proposed to affect temperature-gated calcium ion channels, while 810nm IR radiation stimulated ATP production via absorption of photons by CCO [108].

2022822 — We are very excited to announce that Liteline has acquired Contraste Lighting. Founded in 1989, Contraste has had many market leading innovative ...

Pollack et al. have demonstrated that water in specific locations within cells exists as a more chemically/biologically active molecule [20]. Most intracellular water is dynamic and has an ordered structure to support the life processes in biological systems [21]. Since the water electromagnetic absorption spectrum is mainly in the IR region, photon absorption can result in a rapid increase in intracellular temperature [22], which may promote unwanted physiological changes in temperature, pH, osmosis, and ATP yield [23, 24].

In this review, we have summarized the up-to-date literature reports about medical uses of IR radiation, including neural stimulation (direct activation of neural tissue by IR radiation), photoaging (emerging evidence that IR can have biphasic effects on the skin), antitumor action (IR can inhibit cancer cell proliferation and potentiate the therapeutic effectiveness of chemotherapy), and brain neuroprotection (novel neuroprotective treatments for stroke, TBI and neurodegenerative disorders (IR radiation therapy for Alzheimer's and Parkinson's diseases [134]). Clinical evidence has demonstrated that IR can selectively induce cell death by apoptosis, necrosis and anoikis. In parallel, it induces cell differentiation as a physiological response opposed to proliferation [135, 136].

The present review paper will only summarize some of the key studies about the new application and scientific findings related to IR radiation. It will particularly focus on the new applications, including IR emitting materials for clothing, IR sauna therapy, Waon therapy etc. In addition, we present some newly-emerged scientific findings about neural stimulation, photoaging, photorejuvenation, antitumor action, neural and adipose regeneration.

Infrared lamps are electrical devices which emit infrared radiation. Infrared lamps are commonly used in radiant heating for industrial processes and building ...

All light functions are controllable via Razer Synapse on Windows or the Razer Streaming mobile app. While these apps do work perfectly fine for controlling basic functions, we found them to be a bit limited in terms of on the fly changes and full integration with your stream. There’s no Elgato Stream Deck or hotkey support available and connections to alert services like LumiaStream are extremely limited.

There are ten brightness levels to choose from, with a range of temperatures between them and a Bluetooth remote control supplied to easily adjust settings while in front of the camera. That's perfect for getting your shot just right while still in front of the camera, making setup in difficult environmental conditions even easier.

Be sure to take a look at the best Razer streaming gear if you're serious about your content creation loadout. You'll want to sound your best, so also check out our microphone for streaming and gaming.

You're certainly getting plenty of kit here, with an included adjustable stand reaching up to 99-inches in height, an attached phone holder (suitable for 60mm - 80mm wide devices), and a kit bag to carry it all in.

Perhaps the most impressive feature here, especially considering the price, is the 80W equivalent power output. Though temperature can only be adjusted through filters (not through inbuilt settings like other models), you're getting plenty of customization with both temperature and color options included. Battery-powered and lightweight, the Rotolight kit is extremely portable, especially thanks to that collapsable design.

Furthermore, IR laser (λ = 1450 nm and 1860 nm) can transiently inhibit the propagation of action potentials in endogenous unmyelinated and myelinated axons IR laser delivered by a 200 μm optical fiber was delivered between electrical stimulation produced by a micropipette and the nerve signal recorder. The data showed that the electrical stimulation-induced action potential was blocked by IR radiation, including aplysia muscle contraction and rat sciatic nerve conduction.

In our testing, the all-metal body came across as very professional, and the included desk mounting arm was rock solid. With 2800 lumens of lighting power from its large, rounded rectangular panel the Razer Key Light Chroma also gave us more punch than you’re ever going to need. There’s a wide colour temperature range available, though fractionally less than Elgato’s Key Light, with step-less transitions from the toasty warm 3000K to icy cold blue 7000K.

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However, IR-induced free radicals and ROS can be a double-edged sword, at low doses they can activate protective responses, but at high doses ROS can damage organelles and cells in the skin resulting in photoaging. Many studies have indicated that IR radiation ranging from 760~1,000 nm is involved in photoaging and photocarcinogenesis of human skin [66]. The mechanism of IR radiation damaging the skin is based on upregulation of matrix metalloproteinase-1 (MMP-1), which is mediated by stimulation of the p38-MAPK pathway and extracellular signal regulated kinase 1/2 (ERK1/2) signaling pathways in response to IRA radiation. When human skin is irradiated with single or multiple applications (once a week for 4 weeks) of IR radiation, it can lead to different expression of type I procollagen, and higher expression of TGF-β1, -β2, and -β3 [67, 68].

For your money, you do get an awful lot here - there's a convenient carry case, a great stand that can tilt, extend, and the ring light itself has bundled options for mounting smartphones and cameras alike. All-in-all, this is a super ring light for content creators.

One of my earliest memories is playing SuperMario64 and wondering why the controller I held had three grips, but I only had two hands. Ever since I've been in love with video games and their technology. After graduating from Edinburgh Napier University with a degree in Journalism, I contributed to the Scottish Games Network and completed an Editorial Internship at Expert Reviews. Over the last decade, I’ve been managing my own YouTube channel about my love of games too. These days, I'm one of the resident hardware nerds at GamesRadar+, and I take the lead on our coverage of gaming PCs, VR, controllers, gaming chairs, and content creation gear. Now, I better stop myself here before I get talking about my favourite games like HUNT: Showdown, Dishonored, and Towerfall Ascension. Location: UK Remote

For billons of years, the sun has generated IR radiation and living organisms on earth have evolved to deal with IR radiation as an important environmental factor depending on their habitat. Many ancient therapies have applied sunlight for wound healing and pain relief. The spectrum of sunlight in the environment and the corresponding water absorption spectrum are shown in Figure 1 [25]. It is clear that the solar emission and the strong water absorption bands are nearly matched. Before sunlight penetrates the atmosphere, it is presents a more uniform emission spectrum. While sunlight reaches the ground, some bands have been absorbed by environmental gas or water molecules in the atmosphere. Since the human body is made up of 70% water, it can potentially accumulate a large amount of energy that could modulate biological processes, by strong resonant absorption of IR radiation from sunlight mediated by water molecules.

One of the best things about Lume Cube's Ring Light Pro is how well and how easily it controls. The back of the ring features an LCD display which shows you how the battery life is lasting, as well as what settings the light itself is shining at. As if that wasn't enough, you also get a handy remote control so you can adjust light levels and temperatures without having to leave the shot. That's super useful, and if you make content as a 1-person crew, worth having.

FIR (4~1000 μm) radiation induces molecular vibrations leading to increased temperatures inside the cells, and it may cause a local heat stress environment. The induction of heat shock protein (HSP) 70 can inhibit release of cytochrome c from mitochondria which is an upstream step in apoptosis [94]. Previous literature has shown that low basal expression of HSP70 and changes in cellular morphology were observed in the FIR sensitive cell lines HSC3, Sa3 and A549 [95].

infraredradiation中文

IR-induced heat action can be pathological for the skin. When the skin temperature exceeds 39 C during IR irradiation, it can induce ROS generation and pathological effects through changes in structural integrity caused by enzyme induction in the skin [79]. In addition, the regulation of aquaporin 3 protein expression is involved in the functional mechanisms of intense pulsed light at 560 nm, which plays an important role in skin homeostasis to transport waster and small molecule solutes [80].

The 808 nm laser could also promote cerebral blood flow and increase nitric oxide levels in mice [103]. It was suggested that the IR laser could promote cerebral circulation through NO release as well as activating neuroprotective pathways to reduce the numbers of apoptotic cells in the hippocampus.

In 2016, Ken Zhao et al. reviewed the applications of INS, concentrating on its ability to stimulate various types of neurons by optical radiation, including facial nerve, cochlea, vestibular system, and the cortex [53]. They concluded that IR radiation was primarily absorbed by water.”

Previous research has demonstrated that ionizing radiation therapy combined with paclitaxel can increase the therapeutic effects [98]. Paclitaxel stabilizes microtubules and leads to cell death by inhibiting chromosome segregation, disturbing spindle assembly during cell division, and causing cell cycle arrest in the G2/M phase. Furthermore, paclitaxel also activates several mitochondrial cytotoxicity pathways by altering the permeability of pores in the mitochondria, dissipating mitochondrial membrane potential, releasing cytochrome c from the inter-membranous space, and forming ROS [99]. HeLa human cervical cancer cells were treated with paclitaxel combined with MIR irradiation (3.6, 4.1 and 5.0 μm) and showed improved antitumor effects [100]. IR has the potential to reduce the dosage of paclitaxel in clinical anticancer chemotherapy to avoid paclitaxel-induced severe side-effects, such as lower white blood cell counts, hair loss, diarrhea, mouth sores, and hypersensitivity reactions.

Proposed mechanisms of action of IR at a molecular and cellular level. TRPV = transient receptor potential vanilloid; ROS = reactive oxygen species; ATP = adenosine triphosphate.

Many researchers have found that application of continuous wave or pulsed light leads to different results in studies of wound healing and tissue regeneration [43]. A low frequency pulsed IR laser significantly stimulated bone nodule formation in rat calvarial cells in vitro with a low-energy Ga-Al-As laser (2-Hz, 830 nm, 500 mW, 0.48 3.84 J/cm 2 ) [44]. With respect to the INS, it is considered that the threshold for safety involves avoiding the heating of tissue depending on the neural targets, wavelength, pulse rates, power etc [45, 46]. INS for a cochlear implant is comparable to electrical stimulation, while other neural targets may have lower safety thresholds for INS. A pulsed diode laser with a wavelength between 1.844 1.873 μm, pulse length 35~1000 μs, repetition rate 2 Hz, was used to elicit compound action potentials. Results showed that pulse length of 35 μs was sufficient to elicit compound action potentials from the cochlea. To conduct a 50-μ compound action potential, the peak power was constant for pulse durations 100 μs~1000 μs, but showed a higher peak power at pulse length of 35 μs [47].

To clarify the intracellular location of IRA-induced ROS, antioxidants were used to pretreat human fibroblasts [17]. The antioxidant N-acetyl-cysteine can elevate intracellular glutathione level [89], scavenge reactive oxygen species in all the different cellular compartments, and therefore is able to inhibit all changes in expression of IRA-induced genes. However, IRA still activates ROS-related genes if MitoQ is used as an antioxidant, which was designed to scavenge ROS specifically originating inside the mitochondria [90]. This implies that other IRA-activated chromophores in different cellular compartments may be involved in IRA-induced ROS formation, and not exclusively limited to the mitochondria. Moreover, the IRA-induced expression of MMP-1 enzyme in primary human skin fibroblasts can be decreased by antioxidants, such as ascorbic acid, (α)-tocopherol, epigallocatechingallat, (−)-epicatechin, or phenylpropionic acid [91]. In addition, the enzyme MMP-1 has been proposed to behave like a “Brownian motion ratchet”, governed by water dynamics that can be stimulated by IR light. For instance, activated collagenase (MMP-1) acts as a molecular ratchet with a role in tissue remodeling and cell matrix interactions [92]. Therefore, appropriate antioxidants could be applied to protect against premature skin aging induced by IRA radiation. The human breast cancer cell lines MDA-MB-231, MCF7, T47D, and normal breast epithelial cells (184B5) were irradiated by MIR (λ= 3.0~5.0 μm). Quantitative proteomics analysis was used to study the MIR-regulated physiological responses of breast cancer cells, including G2/M cell cycle arrest, remodeling of the microtubule network to an astral pole arrangement, alteration in the actin lament cytoskeleton, and reduced cell migration activity[85].

"You don’t need a better camera, you need better lighting" is the advice we see often shared with streamers looking to improve their production and the brand has stepped up to the plate with its Razer streaming solution, the Key Light Chroma. Sharing more than just a name with Elgato’s offering, the Razer Key Light Chroma looks eerily similar to its rival but shines when the lights come on.

The light itself is excellent for balancing out shots, and when paired with a webcam like the Razer Kiyo Pro Ultra, it helps create some incredible images. Being able to control the temperature of the light, in particular, is a very nice feature. Natural light from a window can be a really nice inclusion in your shots, and trying to balance it with a cold white light from a lesser ring light can be difficult. So cranking up to a warmer light gives this tool for content creators some added versatility. In an ideal world, for the money you pay, I'd have liked an even broader colour range, but then again that's why key lights exist.

One possible mechanism of INS is photothermal effects caused by water absorption of energy, rather than photochemical reactions that can occur with radiation possessing greater photon energy (shorter wavelength), or photomechanical pressure waves [48]. The heat-sensitive ion channel called “transient receptor potential vanilloid 1” (TRPV1) is a possible receptor that is stimulated during INS. TRPV1 may be activated thermally by the radiant energy absorbed by water present within the neural tissue. Since most TRPV1 knockout mice had no response to IR optical stimulation of the cochlea, shown by a lack of any action potential transmitted in the auditory nerve during IR exposure (λ=1.85, 1.86 μm), this observation supported the hypothesis that TRPV1 is involved in the action potential generation through IR radiation [49]. Furthermore, isolated retinal and vestibular ganglion cells from rodents were used to observe IR laser-evoked response. By adding TRPV1 and TRPV4 channel blockers to identify the primary effectors, the study concluded that TRPV4 channels evoked the sensory neuronal response triggered by IR laser irradiation (λ=1.87μm) [50].

Waon therapy means the body is warned in an IR chamber for 15 min at 60°C, and then they are wrapped in thermal blankets and laid down to maintain heat for an additional 40 min, and finally patient drinks water to replenish moisture lost by perspiration. It can improve cardiac function and is useful in rehabilitation [38].

There are plenty of great brands out there when you're trying to get one of the best ring lights for streaming. We'd argue that Esddi has one of the best all round options in its 18-inch ring light. Neewer also has a solid range of sizes to suit different creators, and of course Razer can throw its hat in the ring with its ring light, its key light, and its original Kiyo webcam which doubles as a ring light and camera all in one.

Previous studies have found that the effects of IR can activate fibroblasts, increase more collagen synthesis and the expression of transforming growth factor-beta1 (TGF-beta1) in rat wounds [31]. Previous studies have found that the incorporation of nanoscale germanium (Ge) and silicon dioxide (SiO2) particles into composite fibers producing poly(vinyl alcohol) (PVA) nanofibers. The emission wavelength of these nanofiber membranes were in the range of 5–20 μm at 37 °C and exhibited an emissivity value of 0.891 (a perfect black body has a maximum emissivity of 1) and an emissive power of 3.44×102 Wm−2 with a web area density of 5.55 gm−2. Far-infrared radiation-induced antimicrobial properties can be effective for bacterial reduction against both Staphylococcus aureus and Escherichia coli at 99.9 %, and showed a reduction of Klebsiella pneumoniae by 34.8 % [32].

The molecular mechanism of NIR radiation (λ=810 nm) to generate mitochondrial signaling in mammalian cells is proposed to be due activation of a photoacceptor called cytochrome c oxidase (CCO). Light activation of CCO stimulates the mitochondrial respiratory chain reaction to generate ROS, and results in the activation of NF-κB in embryonic fibroblasts [13, 63]. In addition PBM absorption of IR radiation by structured intracellular water, may produce additional changes in molecular vibrational energy and affect the tertiary conformation of enzymes, ion channels and other proteins. These relatively small changes in protein structure can activate signaling pathways (such as by inositol phosphates) culminating in activation of transcription factors and changes in gene expression [64, 65].

Waon therapy exhibits an adjuvant effect for chronic obstructive pulmonary disease. The Waon group showed larger vital capacity and peak expiratory flow than the control group. Further studies are needed to investigate the mechanism of action, specifically whether Waon therapy may be associated with increasing airway NO flux [40].

If you're a content creator or streamer, the benefits are obvious - but those working from home and seeking a higher quality webcam experience will also appreciate a more professional aesthetic.

That gives you everything you need to get started in a package that comes in at under $100 / £100. It's an excellent package for beginners testing the waters without wanting to invest in high-end gear, offering advanced autofocus features, and low-light correction as well. There's an 81.6-degree field of view baked into this camera as well, which makes for a nice wider angle shot without dropping that level of detail offered by the lens itself.

May 30, 2024 — Air sanitizers that use one type of ultraviolet light produce ozone that could kick-start those chemical reactions. Further research is needed ...

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202494 — This article will be more of a survey of available accessory shoe light meters with recommendations for types of photography and particular cameras.

Easily tucked away in a bag and USB rechargeable, the 90mm light clips onto the top of your phone to provide 40 LEDs worth of extra illumination. It's a quick and easy solution to low lighting issues, or to enhance footage on the go without requiring a full ring light set up. Simply attach the ring light onto your phone so that the front-facing camera sits in the center and you'll see a dramatic improvement in the quality of your shots.

Infraredwavelength

Table 1 summarizes reports of IR radiation being used to interact with cells and tissues. It also highlights some of the medical applications of IR radiation. The wavelengths of the light sources are proposed to match the absorption spectrum of CCO or water molecules.

In recent years, photodermatological investigation has made enormous progress in understanding the molecular mechanisms that form the basis for the good and the bad effects that human skin can undergo in response to exposure to IR radiation. Most studies used artificial light sources for IRA illumination. This makes it possible to identify the most efficient wavelength, power, and fluence to irradiate subjects than when using environmental IR radiation from the sun containing multi-wavelengths, which may cause heat-induced MMP-1 and induced photoprotection of human skin [61].

Moreover, IRA-induced depletion of carotenoids in ten volunteers was analyzed by resonance Raman spectroscopy and the depth distribution of the carotenoid concentration on the volar forearm was determined by the use of confocal Raman microscopy [77]. The results showed that after exposure to IRA radiation, the carotenoid concentration was reduced immediately and lasted until 60 minutes post-exposure. The original level of the initial antioxidant concentration had recovered at 24 hours post-exposure.

Midinfrared

How are we to distinguish between NIR and FIR absorption that interact with different elements the tissue structure (water, proteins, amino acids, lipids, etc.). It’s an interesting question, because we cannot assume that the optical characteristics of the radiation remain the same, because NIR and FIR could be absorbed and re-radiated as different electromagnetic wavelengths by the tissue chromophores within a very short period of time. It is possible that the final photobiological result originates from a variety of sources, including the original incident light photon absorption, the different re-radiated electromagnetic waves arising from cellular structural molecules, and induction of electromagnetic fields that affect energy metabolism within the cells.

Tissue optics describes mathematical modeling approaches to analyze how photons of different wavelengths interact with tissue. Photons can either be absorbed or scattered (either inelastically or elastically). On the macroscopic scale, the Monte Carlo simulation tool has been applied for studying the light penetration and absorption in human skin during LLLT. Nasouri et al. simulated laser propagation through a three-layer human skin model in the spectral range from 1000 to 1900 nm [131]. This type of analysis is necessary to design parameters to maximze the depth of light penetration into tissue, without any risk of causing thermal damage to the upper layers of the skin. Additionally, the beam profile of the laser spot, which can be uniform or Gaussian can increase the local volumetric dosage, and is important when selecting wavelength and laser power in LLLT.

Periodic IR femtosecond laser radiation (780 nm) was observed to synchronize single or small groups of cardiomyocytes as an “optical pacemaker” [54]. In this study, the power of the IR laser was adequately adjusted to induce periodic calcium release and avoid cytosolic calcium overproduction. The laser was applied with an average total power between 15 and 25 mW. The calcium response with synchronization in isolated cardiomyocytes (or a specific cell within a group of cardiomyocytes) depended on the average laser power on the targeted cell.

Additionally, an IR lamp with a maximum emission at 1100~1120 nm was used to irradiate human skin. Blood vessels stained by the endothelial cell marker CD31 were increased by IR radiation probably through up-regulation of vascular endothelial growth factor (VEGF) and the down-regulation of the antiangiogenic factor thrombospondin-2 (TSP-2) in the skin epidermis [69].

The antioxidative mechanism of carotenoids is to quench singlet oxygen by its conjugated carbon double-bond system. The concentration of carotenoids could report the entire antioxidant levels of human skin [75]. Resonance Raman spectroscopy is a non-invasive optical method to eliminate the influences of heterogeneities and measure the concentration of carotenoids in the skin [76].

Cellular membranes are characterized by the presence of a thin (nanometer) layer of water that builds up on hydrophobic surfaces [126]. Very low amounts of non-heating IR radiation can deliver relatively small amounts of vibrational energy to the nanostructured water layers and may be able to perturb its structure and that of neighboring molecules without causing any bulk heating effect (i.e. without causing any measurable rise in temperature) [127]. Intramitochondrial water viscosity gradients have been identified by the technique of nano-indentation [128]. ATP synthesis can be decreased and increased in response to modulation of reactive oxygen species levels caused by non-thermal levels of NIR. The possible control mechanism of this “mitochondrial nanomotor” is that the NIR could increase ATP turnover by reducing the viscosity of the interfacial water layers. Recently, Santana-Blank et al. proposed that external electromagnetic (light) energy could activate oxygen-dependent and oxygen-independent pathways based on water light interactions [129]. As a result of water light interactions and energy transfer mechanisms, IR generates interfacial EZ-water as a selective rechargeable electrolytic bio-battery [130]. Light energy in oxygen-dependent pathways generates high-energy molecules called nucleotide-phosphates including ATP and GTP. Water light interactions in the oxygen-independent pathway, lead to photoinduced non-linear oscillations in water that could provide energy for cellular reactions, including metabolism, signaling, and gene transcription.

Low-level light therapy (LLLT) is defined as “Treatment using irradiation with light of low power intensity so that the effects are a response to the light and not due to heat. A variety of light sources, especially low-power lasers are used.” in the Medical Subject Headings (MeSH) Descriptor Data 2017. Photobiomodulation (PBM) therapy is “A form of light therapy that utilizes non-ionizing forms of light sources, including lasers, LEDs, and broadband light, in the visible and infrared spectrum. It is a nonthermal process involving endogenous chromophores eliciting photophysical (i.e., linear and nonlinear) and photochemical events at various biological scales. This process results in beneficial therapeutic outcomes including but not limited to the alleviation of pain or inflammation, immunomodulation, and pro-motion of wound healing and tissue regeneration.” as a defined in Anders et al. [10]. It is now agreed that “PBM therapy” is a more accurate and specific term for the therapeutic application of low-level light compared with “LLLT”.

The Lumecube ring light pro is a pro-grade ring light that's an extremely versatile tool for content creators. It's a great size at 17.5-inches, since it's big enough to light bigger scenes, but not overbearing or difficult to manoeuvre.

Infrared (IR) is a type of electromagnetic radiation, including wavelengths between the 780 nm to 1000 μm. IR is divided into different bands: Near-Infrared (NIR, 0.78~3.0 μm), Mid-Infrared (MIR, 3.0~50.0 μm) and Far-Infrared (FIR, 50.0~1000.0 μm) as defined in standard ISO 20473:2007 Optics and photonics -- Spectral bands [1]. Several studies have reported that IR can improve the healing of skin wounds, photoprevention, relieve pain, stiffness, fatigue of rheumatoid arthritis, ankylosing spondylitis, potentiate photodynamic therapy, treat ophthalmic, neurological, and psychiatric disorders, and stimulate the proliferation of mesenchymal and cardiac stem cells [1–9].

In recent years, the combination of technical, clinical, and photobiological principles have become important to understand the therapeutic effects of LLLT. For example in recent years, optical fiber delivery systems have become an important technology to facilitate LLLT [26]. Fiber-optics can transmit light at specific wavelength over long distances by utilizing total internal reflection, allowing them to bend along its path and focus the emission spot on a specific area. Although the light delivery procedures needed for LLLT to be used for diseases of the lungs and airway are difficult, optical fibers inside needles can be applied [27].

Core Keeper creators channel Terraria with a gorgeous multiplayer survival game "where every pixel is yours to shape, mine, build, or explode"

In an attempt to investigate the reduced axonal transport-induced in Parkinson's disease, the velocity of mitochondrial movement in human transmitochondrial cybrid neuronal cells were measured during 810 nm diode laser treatment [105]. Cybrids are neurons that have has their own mitochondria replaced with diseased mitochondria obtained from other cells (for instance those obtained from Parkinson’s disease patients). The speed of mitochondrial movement in Parkinson's disease cybrid neurites were significantly increased after exposure to IR radiation for two hours. It was proposed that IR laser treatment could inhibit neurodegenerative symptoms in patients with Parkinson's disease.

Recently Wang et al showed [108] that two different NIR wavelengths affected adipose-derived stem cells by distinctly different mechanisms of action. 810-nm laser was proposed to activate CCO leading to ATP production and a brief burst of ROS, but had no effect on intracellular calcium. By contrast 980 nm laser also increased ATP and ROS, but at much lower fluences (one tenth to one hundredth), and increased cytosolic calcium while at the same time decreasing mitochondrial calcium. The actions of 980 nm NIR but not the actions of 810 nm NIR could be abrogated by inhibitors of calcium ion channels such as TRPV. Heating up the cells or cooling down the cells abrogated the effects of 980 nm but not 810 nm. This study suggested that 980 nm could work by affecting nanostructured water layers in TRPV ion channels while 810 could directly activate CCO enzyme activity. Figure 2 graphically summariuzes the two most important proposed biological mechanisms of action of IR.

Waon therapy was performed once daily, 5 days each week for 2 weeks. There were a total of 76 Waon therapy patients and 73 control subjects studied at 19 sites [39]. The plasma B-type natriuretic peptide values, “New York Heart Association” disease classification, 6-min walking distance, and cardiothoracic ratio were significantly improved in the Waon therapy group compared to controls. The trial demonstrated safety and efficacy to manage this target population with chronic heart failure.

All matter is ultimately composed of charged particles such as sub-atomic particles, electrons, protons etc. When electromagnetic radiation impinges on matter, the charged particles will absorb energy leading to oscillations depending on the energy of the individual photons (wavelength). Visible light is generally absorbed by electrons in molecular orbitals, while IR energy is generally absorbed by bonds within molecules leading to increased vibrational modes such as twisting, stretching, and bending. Both kinds of energy may transform and dissipate into other molecular vibrations in the form of increased thermal energy (temperature).

The applications of IR therapy have moved on rapidly in recent years. For example, IR therapy has been developed that does not actually require an external power source, such as IR-emitting materials, and garments that can be powered by body heat alone. Another area of interest is the possible involvement of solar IR radiation in photoaging or photorejuvenation as opposites sides of the coin, and whether sunscreens should protect against solar IR? A better understanding of new developments and biological implications of IR could help us to improve therapeutic effectiveness or develop new methods of PBM using IR wavelengths.

Mar 23, 2021 — For the most part, no. On a digital camera, these filters will perform nearly identically, as sensors already block IR and UV light. A UV filter ...

While LED lighting panels can be great for broader set lighting, ring lights are a fantastic way to create even lighting for portrait and close-ups, particularly if the camera is focusing on a face. For streaming, ring lights are definitely advantageous since any "face cam" portions of the screen will be fairly close-up, and will require concentrated light on a small area.

Stimulation of nitric oxide, cytochrome c oxidase, transcription factors, cytokines, growth factors, and inflammatory mediators, etc.

Studies on dressings or clothing made out of IR-emitting materials, have shown they can elevate blood circulation and relieve fatigue of soccer players. Therefore this mode of application could be a more flexible method for portable, lifestyle-enhancing applications (e.g., outdoor activities, sleeping, home-care) and for treating medical conditions compared with traditional IR light sources and saunas.

Furthermore, primary human dermal fibroblasts were analyzed by microarray analysis after IRA radiation in vitro. Microarray analysis indicated that 599 IRA-regulated genes were differentially expressed in primary human dermal fibroblasts, which were relevant to metabolic processes in the extracellular matrix, calcium homeostasis, stress signaling, and regulation of apoptosis [17]. This research also found that IRA resulted in the generation of ROS both inside and outside of the mitochondria. The authors proposed that three major signaling pathways may be involved to activate gene expression, including mitogen-activated protein kinases (MAPKs), calcium, and the interleukin 6/signal transducer and activator of transcription 3 (STAT3) pathways. Additionally, the IRA-induced genes were significantly different compared to UV-induced genes. This finding implies that different wavelengths of light may lead to specific signaling pathways in human dermal fibroblast.

The ESDDI 18-inch bi-color ring light is as big as it is powerful. You're getting some excellent value for money here, with a 45W power output through 432 LEDs. The result is incredibly bright but still manages to ensure a softened finish with reduced shadows.

infrared中文

In addition, FIR induced cell hypertrophy and inhibited proliferation of A549 (lung), HSC3 (tongue) and Sa3 (gingiva) cancer cells by G2/M cell cycle arrest through the over expression of ATF3 gene [96]. The ATF3 gene is involved in responding to changes in the extracellular or intracellular micro-environments, cellular homeostasis, cell cycle, and cell death [97]. However IR radiation did not affect the expression of the ATF3 gene and cell hypertrophy in A431 (vulva) or MCF7 (breast) cancer cells. These results indicate that FIR radiation suppresses the proliferation of cancer cells depending on the specific cell type and may be an effective treatment in some kinds of cancer.

Infrared (IR) radiation is electromagnetic radiation with wavelengths between 760 nm and 100,000 nm. Low-level light therapy (LLLT) or photobiomodulation (PBM) therapy generally employs light at red and near-infrared wavelengths (600–100 nm) to modulate biological activity. Many factors, conditions, and parameters influence the therapeutic effects of IR, including fluence, irradiance, treatment timing and repetition, pulsing, and wavelength. Increasing evidence suggests that IR can carry out photostimulation and photobiomodulation effects particularly benefiting neural stimulation, wound healing, and cancer treatment. Nerve cells respond particularly well to IR, which has been proposed for a range of neurostimulation and neuromodulation applications, and recent progress in neural stimulation and regeneration are discussed in this review.

Previous clinical studies have shown that LLLT has a wide range of benefits on various patient populations, different medical indications and conditions without any serious risk of adverse effects. Adequate dosimetry is important for LLLT and PBM therapy; a basic principal has emerged called the “biphasic dose response”, where larger doses of light have been found to be less effective than smaller doses [30]. This phenomenon is seen in the beneficial neurological effects of transcranial LLLT for traumatic brain injury, where the results vary significantly depending on the number of treatments and the energy density of each individual treatment.

If it's TikTok you need one of the best ring lights for, you'll most likely want one that's geared toward working with a phone. In our experience, these usually tend to be a bit cheaper, and since you'll do most of your TikTok creation on your phone, it makes sense to get a ring light that will suit that. From our list, we'd recommend the ESDDI 18-inch ring light, or the ESDDI 10-inch ring light.

As mentioned above high skin temperatures can activate the heat-sensitive ion channels of the TRPV1 family, increasing the concentration of intracellular Ca2+ inside the cell, and subsequent activation of signaling pathways [81, 82].

All photobiological responses are determined by the absorption of energy by photoacceptor molecules (chromophores) during light irradiation. It is important to clarify the molecular mechanism of light interactions with tissue by identifying the photoacceptor molecules. IR-induced physiological effects are thought to be due to two main types of photoacceptor (i.e., cytochrome c oxidase and intracellular water) [11]. Photon absorption converts light into signals that can stimulate biological processes [12]. The action of IR light on water dynamics in membranes, mitochondria and/or cells could modulate signaling pathways, production of reactive oxygen species (ROS), ATP (adenosine triphosphate), Ca2+, NO, and inositol phosphates group [13–16]. Secondary effects are always preceded by primary effects, including stress signaling, metabolic processes, cytoskeleton organization, cell proliferation/differentiation, and homeostasis (depending on injury or metabolic redox potentials) [17, 18]. Additionally, Shapiro et al. demonstrated that IR light could excite cells through water absorption, with a temperature increase affecting the plasma membrane and altering the electrical capacitance, thereby depolarizing the target cells [19].

Infraredspectroscopy

Getting into game streaming can be a costly affair - with all the capture cards, service subscriptions, cameras, mics, and some of the best headphones or best gaming headsets required for a fully professional setup. While all that gear is necessary to a high-quality stream, getting your lighting just right can also elevate your broadcasts and many ignore this aspect when first starting up.

However, the Razer Kiyo offers an all-in-one solution to this common problem, with a ring light built into a 1080p webcam and a handy piece of Synapse software for easy configuration and controls.

2024512 — I have a Govee TV backlight that uses a camera to detect the TV screen's colors, and it makes the LEDs match those colors for more immersive TV ...

The Rotolight Ultimate Vlogging kit gives you plenty of power for your cash - and all in a compact, easy to transport package. That's perfect for content creators looking to record both on the go and in a home set up. You'll find a small tabletop tripod in this bundle, with a smartphone holder and ring light sitting beside each other on the stand. It's certainly a durable base, and you'll also be able to fix a DSLR or mirrorless camera onto the stand as well.

Overall the mechanisms of action of IR radiation can be divided into two broad groups listed in Table 2. More studies are clearly needed to investigate the mechanisms of IR radiation in the medical and biochemical arenas.

Superposition of spectra of solar irradiance and water absorption showing that the most significant areas of overlap occur in the region of 800–1300 nm

There are many hypotheses to explain the degeneration of neuronal processes in Parkinson's disease, including decreased levels of dopaminergic neurons in the substantia nigra, the presence of cytoplasmic inclusions and abnormal alpha-synuclein-positive axonal swellings in surviving neurons [104].

In short, yes. They may have become a bit of a trend over the past few years, but that's for good reason. The best ring lights provide extra illumination in your shots, distribute light in camera shots better than a lot of alternatives, and soften harsher shadows and contours to create a more polished picture. Plus, continuous lighting ensures you'll always have control over your shots regardless of environmental conditions or the time of day.

Intracellular Ca2+ is an important second messenger for diverse biological process, such as smooth muscle contraction, neurotransmitter release, and regulation of signaling pathways [51]. After exposure to IR radiation (1862 nm), a rapid rise in intracellular calcium was observed in the neonatal rat ventricular cardiomyocytes to that produced a pulsing frequency in the cells [52]. Using fluorescence analysis, 1862 nm IR pulses (0.2 1 Hz) could stimulate both IR-evoked and spontaneous calcium events. IR-evoked calcium events displayed a smaller amplitude and shorter time constants compared to spontaneous calcium events. A mitochondrial Ca2+ inhibitor was used and supported the hypothesis that pulsed IR radiation regulates Ca2+ in mitochondria through the mitochondrial Na+/Ca2+ exchanger and the mitochondrial Ca2+ uniporter.

High density, standard brightness light strip comes with 60 LED's per meter. 3 LED lights are arranged in a group. you can cut the strip and make new strips or ...

In addition, an IR pulsed laser (1.86 μm) was applied to evaluate the spatial selectivity of the acutely damaged cochlea in a guinea pig. The neural response of the inferior colliculus was transformed into spatial tuning curves in order to compare the differences between acoustically-evoked responses and IR pulse-evoked responses [58]. Most of the spatial tuning curves indicated that optical stimulation could activate selective populations of neurons in the same way as acoustic stimulation; only 10% of the profiles could not be analyzed or correlated.

Electron paramagnetic resonance spectroscopy is based on the resonant absorption of microwave radiation by matching the energy difference of the spins of free unpaired electron in a magnetic field, and spin reversal and absorption of microwave energy can be measured [73]. The rotational effect in tissue water with a significant damping induced by the resonant absorption of microwave radiation should be considered to avoid a consequence of the high impedance at this frequency level (109Hz). In previous studies, resonance Raman spectroscopy and electron paramagnetic resonance spectroscopy were used in parallel on the skin of 17 volunteers. Nitroxide radicals (with a free unpaired electron on the nitrogen atom) were used to determine the antioxidative capacity of the skin in vivo. The results showed that the rate of decrease of nitroxide was correlated with the concentration of cutaneous carotenoids [74].

IR appears to be more versatile than other electromagnetic wavelengths (such as visible light) as it can induce neural stimulation effects as well as promoting a wide range of therapeutic benefits in cells or tissues. An increasing number of new reports in recent years have indicated that different forms IR application have clear clinical benefits, and the mechanisms of IR are becoming clarified. Moreover therapeutic levels of IR can be delivered using devices without any external power source, simply by using the heat production of the human body to drive emission of FIR from materials containing minerals.

Infrared neural stimulation (INS) has higher spatial resolution without electrochemical connection between the source and the target tissue. Furthermore, IR radiant emission can be closely tailored to reflect the incoming signal; however the potential disadvantages of INS are risks of heat-induced tissue damage by overdosed energy, and the limited depth of stimulation dependent on IR absorption properties of tissue [42].

Since human skin is consistently exposed to environmental IR radiation, this energy may indirectly or directly stimulate the production of free radicals or ROS. Many researchers have found a brief burst of IR-induced ROS may be beneficial for photorejuvenation. IR radiation (8~12 μm) is used on full-thickness skin wound healing in rats, has shown an increase in the release of the growth factor and anti-inflammatory cytokine transforming growth factor-β1 (TGF-β1) which leads to activation of fibroblasts for improved healing of wounds [31]. Additionally, IR radiation (λ= 950 nm) has been used to directly stimulate fibroblast proliferation, and this resulted in an increased fibroblast proliferation in vitro [62].

Chronic heart failure induces vascular endothelial dysfunction. It has been demonstrated that IR sauna therapy improves vascular endothelial dysfunction in hamsters with experimental cardiomyopathy, which were treated daily with an experimental far IR sauna system for 15 min. After 4 weeks, the mRNA for arterial endothelial nitric oxide (NO) synthase (eNOS) (as well as the protein expression), and NO production were increased significantly compared with normal controls [41].

Over the past decade, a number of studies have found that IR radiation can give rise to some DNA damage in cancer cells [83–85]. The proposed mechanism is related to oxidative stress. IR affects the electron transport chain to generate ROS, which does not only stimulate signal transduction at moderate levels, but can also damage cellular organelles directly when generated at excessive levels. IR-induced mitochondrial ROS were reported to be able to damage human mitochondrial DNA (mtDNA) that takes the form of a 16,559-bp circular double-stranded molecule containing 37 genes, and resulting in alteration of respiratory chain function [86]. Furthermore, mtDNA mutations play an important role in pathological abnormalities. Up to the present time more than 100 point mutations in mtDNA have been found [87].

It should be noted that IR 810 nm is not only absorbed by CCO, but also absorbed at low levels by water. While the 980 nm IR is not much absorbed by CCO, it is mainly absorbed by water [25].

However, one of the main draws here lies in the portability and flexibility of this larger light. It's rare to find such a large and powerful device with a focus on convenience, and especially at this price point. While you've still got a considerable amount of kit to move, the option to power the Neewer light via a Sony NP-F battery makes for easy wire-free shooting, especially with the included Bluetooth remote. You'll also receive an extra battery and a charger included with this price, as well as the full tripod stand, camera and phone adapters, and carry case.

In addition, non-invasive, long-range, energy delivery has been described using an infrared-pulsed laser device (IPLD) of 904 nm pulsed at 3 MHz, which was claimed to have an original mechanism of action termed “photo-infrared pulsed bio-modulation” (PIPBM). The device was applied in a clinical trial of advanced cancer patients and a case of age-related macular degeneration (geographic atrophy) with associated neurological disease, it demonstrated sufficient evidence for its selective, long-distance, reparative and/or regenerative physiological effects [16, 28, 29].

Many of the best webcams might have some type of lighting built into them, but like their microphones, we usually find that built-in lights don't tend to be the best quality. A dedicated ring light for streaming can go a long way, and when you're recording videos or trying to pull out all the stops to make your content competitive, you need all the tools you can get.

Previous studies showed that IR pulsed radiation at 1860 nm or 790~850 nm stimulated action potentials in many different types of neural cells, such as sciatic cells, auditory nerves, and cardiomyocytes [52, 55, 56]. The semicircular canal crista ampullaris of the toadfish (which functions as the balance organ of the inner ear) was sensitive to IR radiation (1862 nm) [57]. When the sensory epithelium was irradiated by various types of IR pulses, activation of the phasic inhibitory and excitatory afferent responses were observed. However there were no phase-locked afferent nerve action potentials observed with thermal stimulation to the sensory epithelium.

Sep 18, 2023 — A diffraction grating is used to separate light into its constituent colors. It is an arrangement of a large number of equidistant parallel narrow scratches of ...

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While you can get some serious power from larger ring lights, it's often the smaller devices that prove more useful. If you're simply looking to improve selfies or quick shots on your smartphone, the Xinbaohong ring light is a perfect accessory to add a little extra illumination whenever you need it.

LLLT and/or PBM has been used for a wide range of different medical indications in recent years, and the cellular and molecular action mechanisms of LLLT are now better understood than in past decades.

The mutation frequency of mtDNA is significantly higher than that of nuclear DNA. This is because the DNA repair mechanisms against oxidative stress induced DNA damage are not as effective in mitochondri as they are in the nucleus of the cell. This applies to bulky DNA lesions or photoproducts, such as pyrimidine (6–4) pyrimidone photoproducts or cyclopyrimidine dimers [88]. Furthermore, mtDNA is located right next to the electron transport chain, which has the highest IR-induced ROS generation side the cell. Therefore, ROS is highly likely to cause mtDNA damage and trigger a cascade of apoptosis and cell death.

It's a great cheap accessory, but you're still getting three levels os brightness to choose from here - a feature that you might not expect from a device sitting under $20 / £20. Plus, the quick setup and excellent portability here also lends itself well to other applications - like attaching the ring light to your laptop to help its built-in webcam during meetings.

The use of far-infrared saunas for medical treatment is based on deep skin-penetration of the radiation to restore homeostasis of thermal regulation. In sedentary patients suffering from osteoarthritis or cardiovascular respiratory problems, far-infrared saunas could be applied as an alternative to moderate exercise. They produce therapeutic effects without any adverse effects on congestive heart failure, premature ventricular contractions, brain natriuretic peptide levels, vascular endothelial function, weight loss, oxidative stress, or chronic fatigue [37].

In recent years nanotechnology development has provided functional sportswear with many properties to enhance sports activities, performance, efficiency and comfort. For example, sportswear should allow the wearer to stay warm in cold environment, and keep cool in hot situations through transferring sweat away from the skin. In general, the mechanism of action of IR radiating materials is to transform heat energy from the body (convection and conduction) into radiation within the IR wavelength range between 3~20 μm to induce homeostasis and photobiomodulation via deeper penetration of IR radiation and water molecule absorption in the skin [25]. The use of materials that generate IR radiation is possibly helpful to enhance blood circulation and the metabolism of human body.

That's a considerable light spread as well. A 20-inch ring light is larger than average, with these devices usually maxing out at 18-inches. That wider field of illumination is perfect if you're looking for a ring light to record makeup tutorials or to offer natural lighting for makeup application.

InfraredWaves

The best ring lights might seem like overkill, but depending on your content creation plans, they might be exactly what you're missing. If you want to equally distribute light in a close-up shot or stream scene, it doesn't get much easier than with a great ring light. There's a reason they've proven so popular in the last few years, and that's because you get a great lighting solution with next to no fuss.

by M Belloli · 2022 · Cited by 11 — The UV-C LED systems were used at two distinct light intensities (9.0 mW/cm2 and 5.5 mW/cm2) for up to 800 s. Fungal conidia were deposited on polyethylene ...

Chang et al. demonstrated that IR radiation (3~5 μm) could cause swelling and cell cycle arrest in the G2/M phase in A549 lung cancer cells [84]. IR radiation could also inhibit the phosphorylation of cyclin-dependent kinase 1 (CDK1) and cyclin B1, resulting in the arrest of cell cycle progression. In addition, the perinuclear distribution of actin filaments in the lung cancer cells implies that oxidative stress generated by IR radiation influenced the cell cycle arrest, reorganization of the cytoskeleton and affected the balance of antioxidants [93]. This study also found that IR radiation triggered the ATM/ATR-p53-p21 axis in response to DNA damage, leading to the formation of 53BP1 and c-H2AX nuclear foci, and activation of the ATM/ATR-p53-p21 pathway involved in DNA repair. These data imply that IR radiation induced the DNA repair system in response to DNA damage.

If you're looking for a smaller ring light suitable for smartphones, the EDSSI 10-inch light offers a flexible, portable device for keeping vlogs and direct-to-camera pieces bright and soft on a budget. This is a tabletop design, so you can easily set up and get going and though you're only getting 10W of power here, a much smaller diameter means you're getting a far more concentrated light source perfect for closer shots.

IRA radiation-induced free radicals can decrease antioxidants such as carotenoids to different degrees in human skin. Especially the carotenoid, lycopene decreased quickly compared to beta-carotene [70]. Many non-invasive measurements have been used to investigate the production of free radicals in human skin during exposure to IR radiation, such as resonance Raman spectroscopy, reflection spectroscopy, and skin color measurement [71, 72].

A far-infrared emitting plaster has been applied for the therapeutic management of knee osteoarthritis. The posterior surface of the patient’s knee was treated by applying the plaster for 12 h a day and for 5 days a week for a duration of treatment of 4 weeks. The plaster was manufactured by Chongqing Kaifeng Medical Instrument Co. Ltd, China, which provided a plate coated with a proprietary mineral formation consisting of 33 elements designated to generate far IR through the action of a radiator. The longitudinal view ultrasound scan of the anterior compartment of the knee was monitored in the study. It showed that the patients from the FIR group had less joint effusion (40%) compared to baseline (80%) [34].

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Transcranial brain stimulation with IR radiation is the use of coherent or non-coherent light to rehabilitate neurodegenerative brain diseases or traumatic brain injury, and modulate a neurobiological function in a non-thermal effect; however the molecular mechanism of IR brain stimulation is still unclear.

While that bag is included, however, this might not be the best model for quickly using on the go. Assembly is easy, but with the stand and large size of the light itself, it's not the most portable device on this list. That means it's best used in a semi-permanent setup, as opposed to the tabletop or handheld options designed for vlogging or selfies.

Light guides are usually made of optical grade materials such as acrylic resin, polycarbonate, epoxies, and glass. A light guide can be used to transmit light ...

That said, if you're after a high-end stream it's better off to advance onto a separate camera and ring light system for extra features, better brightness, and a higher resolution picture quality.

All of the Razer Key Light Chroma’s current weaknesses are software related but easily improved. Right now it’s a great option for creators looking to set up their look and stick with it but for those looking to be more dynamic it may be worth holding tight and tracking progress on the software side. Overall though, the Razer Key Light Chroma is a powerful, high-quality option.

ROS caused by high doses of IRA can reduce antioxidants significantly in vivo. This should be taken into account and the skin should only be exposed to low-to-moderate doses of IRA radiation to avoid tissue damage and photoaging. Barolet et al in an opinion article entitled (Infrared and skin: friend or foe?) [3] emphasized the pronounced biphasic dose effects of IR on the skin. The beneficial effects of low doses of IR on the skin included photoprotection against UV-induced damage, photorejuvenation, reduction of pigmented lesions, and fewer fine lines and wrinkles. Therefore the evidence as a whole supports the conclusion that optimal light parameters are critical for different application of LLLT and PBM especially on the skin, but on other organ systems as well [78].