Optical windows are falt, plane parallel plates which are often used as protective barriers for electronic sensors or detectors from outside environments. When selecting windows, please consider materials, transmission, scattering, parallelism and resisitance to certain environment or mechanical properties of the substrate.
The zinc selenide (ZnSe) window material is a yellow transparent polycrystalline material, it will become red when to meet the light. It is toxic, odorless. The material is soft and easy to produce scratches.
The zinc selenide (ZnSe) window has a light transmission range of 0.5-15 μm. It is an ideal material for protecting windows and optical components in imaging systems. Zinc selenide (ZnSe) window and lens is also widely used in medical and industrial thermal radiation meters and infrared spectrometers.
|Dimension tolerance||+/-0.1mm or +/-0.02mm|
|Surface quality (scratch & dig)||60/40, 40/20 or better|
|Clear aperture||>85%, >90%|
|Surface accuracy||L/10 L/2 L|
|Bevel||0.1~0.3mm x 45 degree|
|Coating||AR, BBAR or Custom|
Shenyang Ebetter Optics Co., Ltd. offers standard and high precision optical windows in round,square, wedge shapes. We also support custom made optical windows in a variety of substrates, such as UV Fused silica, N-BK7, Germanium(Ge), Silicon(Si),Zinc Selenide(ZnSe). The high precision parallelism of 10 arc seconds, surface quality of 10/5 and flatness of λ/20.Single layer or multi-layer anti-reflection coatings are available.
zinc selenide (ZnSe) window