The principle task of the spectrum slicer (or laser monochromator) pulseSlicer is to cut out a very narrow spectral part of an ultrashort laser pulse. Essentially, it acts as a tunable bandpass filter. For example, it can be used as a simple solution for narrowing broadband laser pulses.

CS-mount and C-mount lenses are two different lens mounts used for Lynx cameras. As most Lynx timers know, it's easy to accrue many different event-specific ...

By submitting the information, you give your consent to the potential publication of your inputs on our website according to our rules. (If you later retract your consent, we will delete those inputs.) As your inputs are first reviewed by the author, they may be published with some delay.

Howtocalculate focal lengthPhysics

Please do not enter personal data here. (See also our privacy declaration.) If you wish to receive personal feedback or consultancy from the author, please contact him, e.g. via e-mail.

Here you can submit questions and comments. As far as they get accepted by the author, they will appear above this paragraph together with the author’s answer. The author will decide on acceptance based on certain criteria. Essentially, the issue must be of sufficiently broad interest.

To calculate focal length with a reducer, you simply multiply the native focal length by the reduction factor. For your 600mm with a .85 reducer, the new focal length would be 510mm (600*0.85) and for you 715mm and .79 reducer, ~565mm (715*0.79).

The encyclopedia covers this topic well: with a long overview article on laser material processing and specialized articles on

The Omni-λ Series of imaging spectrographs and monochromators from Zolix Instruments are professional devices for researchers who demand the highest quality data. Zolix spectrographs and monochromators feature a very flexible design that can be configured for a wide range of applications, with a spectral range from UV to NIR.

Howtocalculate focal lengthof convex lens

Sep 19, 2024 — Our Camera Recommendations · Best All-around Camera: Basler ace2 Basic · Best Higher Res Camera: Basler ace2 Pro · Best Low Light Camera: LUCID ...

Monochromators are often used in spectroscopy. A common application is in combination with a photodetector; with such a setup one can record the optical spectrum of a light source by recording the transmitted intensity while scanning the transmission band (scanning spectrometer). Without the exit slit, a monochromator may be used in a spectrograph.

Using our advertising package, you can display your logo, further below your product description, and these will been seen by many photonics professionals.

Within a very limited range of optical frequencies, an optical resonator can also serve as a monochromator, transmitting light only in resonance. The width of the usable frequency range is the free spectral range, which depends on the around-trip time of light in the resonator.

This has helped me out alot ..as we know clear skies in the UK are far and few between and last night was a complete wash out ...

Calculate focal lengthfrom image

Unfortunately, the dependence of pass band wavelength or optical frequency on the rotational angle is nonlinear; that may have to be compensated with software – for example, on a computer or a built-in microprocessor.

HandHeld Magnifiers · Large black Rectangular LED 3x Folding Handheld Magnifier, magnifying text · small glass lens magnifying glass 3.5x.

The whole setup is placed in a box, containing additional apertures and black shields (not shown in the figure) in order to minimize effects of stray light, which might otherwise get to the output in irregular ways. Such measures are particularly important in cases where very weak light in the presence of intense light at another wavelength needs to be analyzed – for example, in Raman spectroscopy. In some cases, one needs to use a dual monochromator (i.e., two such devices in a sequence) to achieve better suppression. Another solution may be to use a notch filter before the monochromator for attenuating light at the unwanted wavelength.

Howtocalculate focal lengthof parabola

The transmitted light is available at the output port, which is also often having the form of a slit, from which relatively divergent light is obtained. In some cases, the output is again coupled into an optical fiber.

2023616 — Yeah :) it's a clone of an MXR Blue Box, in a case made from blue 5mm stained glass. The Blue Box circuit uses a 5v logic flip-flop chip to ...

Calculate focal lengthfrom FOV

A lens is a transparent device with two curved surfaces, usually made of glass or plastic, that uses refraction to form an image of an object. Mirrors ...

Similar monochromators as discussed above can be realized with a prism instead of a diffraction grating; the transmission bandwidth is then substantially larger due to the smaller angular dispersion of a prism. On the other hand, a prism causes lower power losses and can be used in wider wavelength regions, e.g. for ultraviolet light.

The diffraction grating is normally placed on a rotational stage; its position determines the center wavelength of the pass band. Some monochromators contain several gratings, often with different line spacings, for addressing different wavelength regions and/or working with different values of the transmission bandwidth. The rotational stage is often motorized, so that it can be computer-controlled. Some devices have a scale for the rotational position, possibly calibrated in nanometers. Simpler monochromators have a micrometer screw, and the user has to translate its scale readings into wavelength values.

Note: the article keyword search field and some other of the site's functionality would require Javascript, which however is turned off in your browser.

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.

Based on these considerations, one can decide which type of diffraction grating is most appropriate for a particular application.

Focal lengthof lens formula

Note: this box searches only for keywords in the titles of articles, and for acronyms. For full-text searches on the whole website, use our search page.

Typical achievable wavelength resolutions of such monochromators are about 0.01 nm to 0.1 nm. Devices with particularly high resolutions tend to be larger (using mirrors with long focal length and a grating with larger area); they also need to be built with high mechanical and thermal stability. Within some limits, relatively compact setups can be obtained by folding the beam path.

There are modified types of monochromators, for example the Fastie–-Ebert monochromator wit a common collimator/refocusing mirror, and devices with two gratings for better resolution.

What isfocal lengthof lens

I wondered if any of you kind people could tell me how to calculate the focal length of a telescope using a focal reducer ? ...I.e native focal length 600mm and a .85 reducer and 715mm using a .79 reducer ...just struggling to get apt to plate solve and I think it maybe because I have the telescope native focal length entered instead of the focal length while using a reducer.

Laser Protection Blue Industrial Safety Glasses & Goggles · US Stock Laser Safety Glasses Protective Goggles 200-450nm 800-2000nm OD 7+ · Blue Laser Safety ...

A monochromator is a kind of tunable optical bandpass filter, which is in most cases tunable concerning the center wavelength of the pass band and possibly also concerning the transmission bandwidth (at least in steps). Light outside the pass band is usually absorbed in the device.

Howtocalculate focal lengthfrom power

Typical devices e.g. based on gratings can transmit only 50% of the input power or even substantially less, and they suppress light outside the pass band e.g. by 30 dB, or sometimes substantially more. Their transmission band should depend only weakly on the alignment of the input beam.

Index of Refraction Ranges for Several Types of Glasses. Glass. Index of Refraction. Headlight glass. 1.47-1.49. Television glass. 1.49-1.51. Window glass. 1.51 ...

The classical type of optical monochromator is the Czerny–Turner monochromator, see Figure 1. The input light is focused onto the input slit and therefore divergent after the slit. It is collimated by a curved mirror and hits a diffraction grating, which deflects different wavelength components in slightly different directions. A second curved mirror translates different beam directions into different positions on the exit slit, so that only light in a narrow wavelength region can get through that slit. One may again collimate that light e.g. with an additional cylindrical lens after the monochromator.

Spherical mirrors are actually problematic in conjunction with a large slit height due to their spherical aberrations. One may therefore either use toroidal collimating mirrors (a kind of aspheric optics) or curved slits to avoid such problems.

Triton GigE Vision Cameras · Filter · Triton SWIR 0.3MP Model (Sony IMX991) · Triton SWIR 1.3MP Model (Sony IMX990) · Triton 24.5 MP Model (IMX540) · Triton ...

In the early times of optics, monochromators were often used for obtaining quasi-monochromatic light. This was of course very inefficient in conjunction with a broadband light source, as required for generating widely tunable monochromatic light. For a fixed wavelength, one could use certain low-pressure gas discharge lamps and transmit one of the prominent emission lines. Nowadays, that application is somewhat less common because it is often better to use a laser as quasi-monochromatic light source. Still, the principle is used e.g. in spectrophotometers for measuring the wavelength-dependent absorbance or reflectance of a sample, since a wideband tunable laser is more difficult to make and use and is more expensive.

The Monochromator-F is suitable for fiber-coupled light sources (like our LS-WL1 or LS-BB1) in a wide wavelength range from the UV to mid-IR.

2024108 — prism, in optics, a piece of glass or other transparent material cut with precise angles and plane faces, useful for analyzing and reflecting ...

Dec 4, 2019 — AR coating is especially beneficial when used on high-index lenses, which reflect more light than regular plastic lenses. Generally, the higher ...