When you break down the scientific research on power and wavelengths, it’s easy to see that heat lamps really don’t compare to a full-body red light therapy device like a Joovv. There’s a reason you can pick up infrared heat bulbs at your local hardware store for less than $10. They simply can’t deliver the clinical benefits of a real red light therapy device, and they come with too many risks.

OpticalFlat Mitutoyo

There’s also a reason medical researchers use LEDs or lasers when they conduct photomedicine research. You won't ever find them using heat lamps, which use ineffective wavelengths, don’t offer clinical power or short treatment times, can’t match Joovv’s coverage or consistency, and come with the added dangers of burns.

A reflection stand is a devise used to allow an inspector the ability to view interference fringe patterns of a measured surface that is placed on the top surface of the optical flat. This “upside down” procedure must be used when measuring a component that will be stressed and forced from its natural shape by the weight of the optical flat. Large diameter carbon graphite components with small cross section profiles are notorious for being extremely physically unstable. This is a prime example of an application that requires a reflection stand for accurate flatness measurement.

[1] Avci P, Gupta A, et al. Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring. Seminars in Cutaneous Medicine and Surgery. 2013 Mar.

Freeoptical flatness testing

Founded in Germany in 1804 by Mr. Peter Wolters, Peter Wolters has been producing lapping, polishing and fine grinding equipment since 1936. In 2019 Precision Surfacing Solutions acquired the division Wafer plant and service business for photovoltaic and special materials of Meyer Burger. Further Information can be found at www.precision-surface.ch

Opticalflat interferometer

Less than 1% of the energy from infrared lamps is delivered from 600-660 nm, and only about 2% is delivered in the entire 810-880 nm range. In total, these wavelengths only represent about 3% of the total energy delivered by an infrared heat lamp bulb. In other words, 97% of wavelengths from an infrared heat lamp fall outside of the wavelength range known to produce the greatest health benefits.

This was calculated using an exchange rate: {{this.$parent.data.CurrencyTypeOrigin}}:{{this.$parent.data.CurrencyTypeDestination}} {{this.$parent.data.ExchangeRate}}

Non-standard sizes (16” diameter maximum), shapes (square or rectangular) and “donut” type (flat has a hole machined in its center) optical flats are available from Lapmaster.

Prior to use, carefully clean the optical flat and surface requiring measurement. The surface being measured must be reflective to view interference fringes. A monochromatic light source must be used to accurately determine flatness with an optical flat. Place a sheet of lens tissue onto the surface requiring inspection. Physically place the optical flat onto the lens tissue covering the surface requiring measurement. While relieving some of the optical flat weight, gently pull the lens tissue out from between the two surfaces. Place a finger on the center of the optical flat and press down to remove some of the air trapped between the surfaces. The visual curvature of the interference fringes (light bands), relative to a parallel straight reference line, indicate the high and low deviation from the flat plane. If one band crosses the reference line, the surface is one light band “out-of-flat”. If two bands cross the reference line, the surface is two light bands out-of-flat. The user’s judgement of the degree of band curvature is a drawback with this method of measurement. The initial light band pattern indicates the total deviation from the lapped plane and nothing about the direction of deviation (convex or concave). Additional technique with the optical flat must be employed to determine if the surface deviates up (convex) or down (concave).

Optical flatness testingsoftware

Lapmaster provides a service for reconditioning used optical flats. The maximum capability is 16” diameter, but 12” diameter optical flats are the largest that can currently be certified. Lapmaster uses a 12” diameter “master optical flat” that has been certified for accuracy by NIST (National Institute for Standards and Testing. Large chips, fractures and deep surface damage cannot be repaired.

REFORM Grinding Technology GmbH is specialized in the sales, development & production of grinding machines for various applications at its location in Aschaffenburg (Germany).

Optical flatness testingpdf

[2] Chung H, Dai T, Sharma SK, Huang Y-Y, Carroll JD, Hamblin MR. The nuts and bolts of low-level laser (light) therapy. Annals of Biomedical Engineering. 2012.

Heat lamps are designed to induce heat stress on a user. The heat is the point. The problem is that excess heat can potentially cause damage to your skin. By contrast, high-quality LED light therapy devices—like Joovv—give off very little heat, and have been found safe, effective, and free of side effects in numerous clinical trials. [1]

ELB-Schliff Werkzeugmaschinen GmbH has been producing surface and profile grinding machines for over 70 years. The company was founded by Edmund Lang in the city of Babenhausen which led to the name "ELB-Schliff".

The distance you are from the device. The farther you are, the less energy you’ll receive, and you have to be far away from a heat lamp to avoid burn risks. Joovv can treat a person up to 24 inches away from the device, whereas with other light therapy brands, you need to be very close to the device to see any potential benefits.

Founded in 1934, KEHREN is a well-established designer and builder of high-precision grinding machine tools and systems under the following categories: vertical grinding centers, vertical grinding centers with portal design, surface grinders with rotary tables and horizontal spindles, and surface grinders with dual rotary tables and vertical spindles.

Not all natural light is created equal; different wavelengths and colors within the light spectrum have different effects. And it’s hardly a secret which wavelengths are effective for light therapy. Extensive research has shown that only a relatively narrow band of red and near infrared wavelengths impact your cells and have a significant therapeutic effect.

Lapmaster offers two sizes of reflection stand for use with the CP style monochromatic light units. The smaller unit supports the CP-2 and a 6” diameter optical flat. The large reflection stand supports the CP-1 and the customers choice of 6”, 8”, 10” or 12” diameter optical flat.

Duty: {{this.$parent.data.Duty}} {{this.$parent.data.CurrencyTypeDestination}} (Rate of {{this.$parent.data.DutyRate}} %)

The total power output—sometimes referred to as irradiance—from a device also directly impacts the time required for treatments. Lower-powered products like heat lamps take way longer to produce benefits, if ever. Imagine filling up your water bottle from a dripping faucet—it will fill up eventually, but you’ll waste a lot of time in the process. You can read more about how to accurately measure light therapy power here.

Optical flatness testingmachine

In addition to infrared heat lamps delivering inferior wavelengths, they don’t offer medical-grade power like a high quality LED light therapy device.

Importing a product classified with HS Code {{this.$parent.data.HsCode}} to {{this.$parent.data.CurrencyTypeDestination}} from {{this.$parent.data.CurrencyTypeOrigin}} with a value of {{this.$parent.data.Value}} {{this.$parent.data.CurrencyTypeOrigin}} results in the following:

Lapmaster offers a standard line of round optical flats from 1” to 12” diameter supplied with a protective case. Each size optical flat is available in three accuracy’s, 1/2, 1/5 and 1/10 of a light band. The standard optical flats are accurate on both faces, but single side accurate optical flats are available by request. The accuracy simply indicates the actual measured flatness across the diameter of the optical flat. In other words, the optical flat accuracy is in fact the measured inaccuracy. The more accurate optical flats require greater manufacturing time and are thus more expensive.

An optical flat is a contact optical measurement device used in conjunction with a monochromatic light source to measure precision flat surfaces. Lapmaster optical flats are manufactured from high quality fused quartz.Fused quartz is used because it possesses an extremely low coefficient of thermal expansion and extremely high resistance to abrasion. Even with the hardness of fused quartz the optical flat must be handled and used very carefully to prevent damage and scratches. It is important to not slide or rotate the optical flat on any surface. Optical lens tissue and alcohol should be used to clean optical flats. Since the measurement resolution of an optical flat is a light band (.0000116” or .295 micron), components must be flatter than 15 or 20 light bands in order for the optical flat to be able to make the interference fringes visible. This is not normally a problem since most flatness requirements are to achieve single digit light bands. Proper inspection procedure dictates that the optical flat must be large enough to completely cover a surface that has a flatness specification.

The graph below shows the irradiance of four 250-watt infrared heat lamps. Because they’re hot to the touch, you need to be at least 18” away, but at that distance, the irradiance is only about 1 mW/cm2. With this type of power, you’re going to need hours to receive a meaningful dose of energy. Who has that much time every day?

The reflection stand consists of a fabricated polypropylene plastic housing containing an angle adjustable glass-viewing mirror. The front and top surface of the case is made from clear acrylic plastic. The stand works by supporting an optical flat above a mirror that is angled towards the clear acrylic front viewing panel of the unit. The appropriate size monochromatic light unit is placed on a step integral in the reflection stand with the diffusing lens overhanging the clear acrylic top surface of the reflection stand. A component requiring measurement is placed on top of the optical flat with its polished surface in contact with the flat. The only stress on the component is caused by its own weight. The interference fringe pattern reflects down to the mirror and is viewed through the clear front panel.

Infrared heat lamps produce a wide range of wavelengths, but as the graph below shows, the wavelength curve builds to its peak output around 1100 nm. [3]

Produced in Germany since 2009, MICRON machines are compact and dynamically rigid grinding machines especially designed for Creep Feed and Profile grinding. MICRON is an industry leader in grinding of Hydraulic components like stators, rotors and van pumps.

Founded in Chicago in 1948 as a manufacture of lapping and polishing machines for the mechanical seal market, Lapmaster has grown to a worldwide solution provider for more than 20 industries like precision optics and advanced materials.

Opticalflat calibration

That’s another problem with infrared heat lamps: the light power that’s delivered drops off a great deal as you move further away from the light—even though they get hot enough to burn you, which obviously isn’t good!

The aba company was founded in 1898 under the name "Messwerkzeugfabrik Alig & Baumgärtel Aschaffenburg", hence the initials aba. Today, the aba Grinding Technologies is exclusively focused on the advancement and production of precision surface and profile grinding machines.

If you’re looking for high quality red light therapy that supports better cellular function and greater balance, check out a Joovv.

Optical flatness testingppt

Are red light therapy devices different from infrared (IR) heat lamps? Yes, a lot different, and one of the big reasons is right in the name: heat.

What are the ideal wavelengths for light therapy? Red wavelengths (600-660 nanometers) and near Infrared wavelengths (810-880 nm). These narrow ranges fall within the “therapeutic window”, a term used by photomedicine researchers to describe the band of wavelengths that have the greatest positive effect on cellular biology. Other wavelengths have limited effectiveness, at best. [2] You can learn more about the basics of light, wavelengths, and colors here.

Translation: infrared heat lamps deliver mostly ineffective wavelengths of light that don’t have any real effect on human health.

This 8-1/2” by 11” lint free cleaning tissue is sold in packs of 500 sheets. This is the best material for cleaning optical flats and to place between the optical flat and a polished surface during set-up for the measurement. This tissue will not scratch the optical flat or polished surface and will not leave any lint particles when carefully pulled from between the two surfaces.

Even if heat lamps could deliver clinical results similar to light therapy, the burn risks aren’t worth it. Beyond the heat dangers, infrared heat lamps simply don’t offer the clinically-proven wavelengths or medical-grade power output of a high-quality LED device, which we’ll explain in more detail throughout this article.

PRECISION SURFACING SOLUTIONS supports manufacturers in a wide variety of industries in which precision grinding, lapping, polishing, deburring and advanced materials processing equipment is commonly used. They all need high-quality, high-precision, stable and well-engineered machines to manufacture high-quality work pieces.

The size of the device matters too. With clinical light therapy, coverage and consistency are key. You can only get optimal benefits and short treatment times from a full-body device like a Joovv. Infrared heat lamps can’t match Joovv for size or coverage, in addition to lacking in power and wavelengths.

Founded in Chicago in 1948 as a manufacture of lapping and polishing machines for the mechanical seal market, Lapmaster has grown to a worldwide solution provider for more than 20 industries like precision optics and advanced materials.

*Joovv light therapy products are intended to provide topical heating for the purpose of elevating tissue temperature for Temporary relief of minor muscle pain, Joint pain, Minor arthritis pain, Muscle spasms, Temporary increase in local blood circulation, Temporary relaxation of muscles. These products are not intended to diagnose, cure, or prevent specific diseases of medical conditions. The Joovv website is for education and information purposes only and is not intended as medical advice or a substitute for medical advice. Joovv, Inc does not intend these products to cure any physical, skin, or mental conditions solely from their use. A qualified health professional should always be consulted prior to using the products, and professional medical attention should be sought with regard to any serious or life-threatening conditions | ©Joovv, Inc. 2016-2024