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Optical microscopes typically use refractive glass lens systems to examine samples at large magnifications. Unlike infrared camera in MWIR and LWIR, SWIR cameras can operate with standard glass optics and do not require the use of reflective optics. Consequently, SWIR cameras can be used with most existing microscopes.

Moreover, as infrared range is quite wide, IR optics can be divided in different groups according to their applications.

The Evetar E3417C IR-Cut F2.4 f2.5mm 1/1.8" has an S-mount and comes with an IR-cut filter. With a fixed aperture. Click here.

Mid infrared

Thermal IR are wavelength used for thermal imaging application, their range may varies according to the applications but commonly covers MWIR & LWIR.

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Jan 13, 2021 — Dielectric Mirrors. Each ULTRA Series high-reflectivity dielectric mirror provides close to 100% reflection. They are all resistant to laser ...

NIR stands for Near Infrared, by near it refers to it’s closeness to visible spectrum. The NIR spectrum covers 750nm to 1µm.  These wavelengths are used in the night vision technology and telecommunications.

Ocular Lens (or eyepiece). Focuses the image from the objective into your eye. · Eyepiece Tube. Connects the eyepiece with the objective lens. · Objective Lenses.

Swirmwir lwir

The short answer is optical components that are used in infrared wavelength. They are particular because infrared wavelength are by definition not visible with human eyes. Therefore specific equipment are required to asses them.

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SWIRVision Systems

As the range of IR radiation is quite large, further division of the spectrum is done, each corresponding to certain characteristics. Below shows the detail of each IR subdivision.

Infrared optics are reputed for not being cheap, which limit their application especially for high quantities and complexe shapes (aspherical). Fortunately, chalcogenide glass is a good alternative to more commun materials like germaniun for far infrared applications. Chalcogenide glass, mainly made of S, Se, As, Ge and Te have low softening temperature which enable this material to be molded. While chalcogenide glass itself may be more expensive than Germanium, by molding it, it  can be used to get high quantities, affordable aspherical optics.

LWIR

Infrared refers to electromagnetic radiations with wavelength spectrum between 750nm and 1mm. The name cames from the infrared spectrum covers radiations of smaller frequencies than the smallest visible wavelengths view as red by the human eye.

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One other interesting characteristic of chalcogenide glass is it’s low temperature dependency of it’s refractive index (dn/dT), which means that the material optical properties will be more stable with change of temperature.

Magnifying Lamps · Quickview. Prym Universal Magnifying Glass with LED Light · Quickview. Daylight Halo 5D Magnifying LED Lamp · Quickview. Daylight Mag Lamp S.

Oct 25, 2019 — Once you've put on your gloves, use a cotton swab to apply the substance to the lens. Do not rub the Armor Etch into the lens the way you would ...

Only the up and down waves can get through. The side-to-side waves would be blocked. A polarized filter blocks reflected glare in the same way. The horizontal ...

Oct 15, 2015 — The uppermost lens (on a three lens substage Abbe condenser) can be flipped into the light path which ensures that the light completely fills ...

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Mar 8, 2021 — Optics Manufacturing 101: Specifying Optical Coatings · Glass Type (3:25 - 4:55) · Wavelength or Range of Wavelengths of Interest (4:55 - 5:50).

As we have seen above, IR optical components relates to many different kind of components and materials. Most of the precision optics suppliers do provide optical components for infrared application whereas some supplier specialized in IR material manufacturing (Ge, Si, ZnSe, CaF2, MgF2 etc..)

NIRSWIR

SWIR stands for Short-Wavelength Infrared, it’s spectrum covers 1µm to 3µm. The SWIR wavelength are used for long distance communications.

SonySWIR

the thoracic aorta, Relay®Plus and Relay®NBS Plus were specifically designed ... Both RelayPlus and RelayNBS Plus are offered in custom configurations ...

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There are different grades of chalcogenide glass available on the market with optical index ranging from 2.49 to 3.13 (lower than Germanium ones) and densities from 4.4 g/cm3 to 5.3 g/cm3. Dimensions of molded chalcogenide glass lenses can range from 5mm to 25mm diameter.

If you have heard of LIDAR, night vision, thermal camera or spectroscopy, you may understand that infrared applications surround us and are poised to a steady development in the near future. As most of the Photonics applications, infrared applications need optical elements.

Sep 8, 2023 — In technical terms, dispersion in optical fiber refers to the phenomenon where different wavelengths of light experience varying velocities as ...