Zinc Selenide (ZnSe) plane-convex (PCX) lenses are designed for focusing or collimating applications in mid - and long-wave infrared spectroscopy.These lenses are made of iI-VI infra-red zinc selenide material with a volumetric absorption coefficient of

CHARACTERISTICS OF ZNSE:

-Spectral range is 2-15μm

-Low absorption coefficient and high thermal stability, good thermal shock resistance.

-Coating Available：2-3um,3-10um,4-12um,10.6um

APPLICATION OF ZNSE

-ZnSe Crystal is used in the field of spectral analysis, laser optics, astronomy, medical instruments, infrared night vision, thermal imaging, infrared imaging, etc

-ZnSe Crystal is also a good choice for CO2 laser components.The transmittance is good around the band of 10.6 microns in which the CO2 laser operates.ZnSe material is a yellow transparent polycrystalline material with crystal particle size of about 70μm and transmittance range of 0.5-15μm.The synthesized by chemical vapor deposition (CVD) has almost no impurity absorption and very low scattering loss.Because the absorption of 10.6μm wavelength is very small, it is the preferred material for fabrication of optical devices in high power CO2 laser system.In addition, in the whole transmittance band, it is also widely used in different optical systems.

SPECIFICATIONS OF ZNSE

Diameter	5mm to 250mm
Thickness	0.5-40mm
Material	Import USA ZnSe,China ZnSe
Surface Quality	60-40 standard
Flatness	1/10 lambda
Chamfer	0.25mmx45degree
Focal Length Tol.	+/-1%
Coating Wavelength	8um-12um
Clear Aperture	>85% of diameter
Design Wavelength	10.6um