Plano-Concave (PCV)Lenses, D=25.40mm, F=-200.00mm, IR2 CVD Laser Grade ZnSe(ZnSe), United Optical Technology Co., Ltd (CAT#: STEM-OP-1197-YJL)

Plano-Concave (PCV)Lenses, D=25.40mm, F=-200.00mm, IR2 CVD Laser Grade ZnSe(ZnSe), model 120329, is manufactured by United Optical Technology Co., Ltd.
Zinc Selenide (ZnSe) Plano Concave (PCV) Lenses are plano-concave lenses based on zinc selenide.
Zinc selenide is a commonly used optical glass material in the infrared band. The transmission band is 600nm-16μm. It has the characteristics of low absorption and thermal shock resistance. It is often used in thermal imaging systems and can also be used in some visible light optical systems. It can be used as the substrate for a variety of optical components, such as lenses, windows, etc. Special attention should be paid to the fact that zinc selenide is a toxic material. Please be sure to wear gloves when using it and wash your hands after use.

Diameter: 25.40mm
EFL: -200.00mm
Coating: Double Sided AR coating@8~12μm
Material: CVD Laser grade(ZnSe)
BFL: -200.00mm
Curvature Radius R1: -280.50mm
Center Thickness CT: 2.00mm
Edge Thickness ET: 2.30mm
Available Mount Ring: N/A
Design Wavelength: 10.6um
Diameter Tolerance: +0.0/-0.1
Center Thickness Tolerance: ±0.2
Surface Accuracy: --
Focal Length Tolerance: ±1%
Centering Tolerance: ＜3 arcmin
Surface Quality: 40/20-60/40
Bevel: 0.2X45°
n: --

Plano-concave lenses can radiate light and have a negative focal length. One side is flat and the other is concave. Commonly used for beam expansion, projection and enlarging the focal length of optical systems.
It has a negative focal length and negative spherical aberration, which can be used to offset the aberrations of other lenses in the system.

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