Magnesium fluoride Optical window plate

Optical window plate is a kind of double-sided polished parallel plate, the surface quality of optical glass with optical level, will not change the multiplier of the optical system, Commonly used as protective glass for optical detectors, sensors, optical lenses, detectors, etc. Substrate materials include various optical glass, ultraviolet fused quartz, infrared fused quartz, calcium fluoride(CaF2), magnesium fluoride(MgF2), zinc selenide (ZnSe), germanium(Ge), silicon(Si) and other crystal materials. And provide anti-reflection coating, high reflective coating, spectroscopic coating, metal coating and other optical coating. When choosing an optical window, consider whether the material transmission and mechanical properties of the window fit your application. Yukang photonics can provide a variety of materials to respond to a variety of industrial production scenarios.

The optical window filters produced by yukang photonics are divided into three categories: ultraviolet window, visible window and infrared window. The best solution can be selected according to the specific requirements of customers.

While serving as window protection, it does not lose light ehergy, improve transmittance, increase hardness, reduce reflection and increase surface smoothness. Application fields involve various aspects, such as: smart home system, biometrics system, intelligent robot accessories, laser barcode scanning, infrared remote control, medical device display window, camera UV mirror, etc.

Product situation

The MgF2 optical window slice penetrates the VUV region well up to 121nm and beyond. Magnesium fluoride is mainly used in UV spectrum and has good application to excimer laser. MgF2 is a tough material with a wide transmittance and good transmittance in the wavelength range of 0.12μm - 7.5μm. The material is harder than CaF2 and is mainly used in the ultraviolet band. MgF2 is an ideal material for making various optical elements such as window plates, lenses, prisms and cylindrical lenses. It is used for wave plates, laser systems, coated crystals, vacuum window plates, PBS light sources, microscopes and optical instruments. It is an optical window material for vacuum ultraviolet to infrared bands and the only birefringent optical material for polarization optical devices in the ultraviolet radiation region.

MgF2 has only a slight effect at high energy radiation and is the preferred ultraviolet radiation optical element for space stations. It has been proved that MgF2 has a high laser damage threshold and does not produce chromatic dispersion, which is more suitable for optical window materials of excimer lasers than CaF2. MgF2 is the preferred material for fluorinated environments.

Product features

■The full spectral range is 200-6000nm

■Ultra wide spectrum applications, covering UVA ultraviolet, UVB ultraviolet, visible and infrared wavelengths

■There is almost no phase difference and no birefringence effect in optical system

■It is widely used in deep purple optics, laser system, infrared system and protection window.

Technical indicators

Dimensions： according to customer requirements

Size tolerance： +0.0/-0.2mm

Surface accuracy：λ/4 @632.8nm

Surface quality： 40-20（MIL）

Edge chamfering： < 0.25mm×45°

Clear aperture：>90%

Polishing： double-sided polishing

Coating： according to customer requirements