Fujian Kire Optronics Co., Ltd. is one of the leading optical companies in China, dedicating to the design, manufacturing and distribution of high precision optical element and system; also we provide coating service applied in the spectral range from UV to IR.

We provide infrared optical components with material Ge, Si and CaF2.  They find applications in near IR to far IR optical system such as non-contact detector, thermal imaging, thermal sensor, spectrometer, IR thermometer etc. Contact us for your custom IR optics.

Ge lens 

Material: Germanium

Dimension tolerance: +0/-0.10 mm

Clear aperture: 95% of diameter 

Thickness tolerance:±0.25mm

Focal length:±2%

Surface quality: 60/40 

Power / irregularity: 5.0/2.0 fringes

Centration: 3 arc minutes

Coating: AR/AR lambda/4 @ 8 – 14 um, T > 85%  

Ge window

Material: optical grade Ge

size tolerance: +0 / -0.05mm

thickness tolerance: ±0.05mm

power/irre: 2/1 fringe

surface quality: 60/40 scratch and dig

Wedge: < 0.01mm 

Si lens

Material: silicon

Dimension tolerance: +0 / -0.1mm

Clear aperture: 95% of diameter 

Thickness tolerance: ±0.1 mm

Focal length:  ±2% @ 5 um

Coating: AR/AR lambda/4 @ 5 micron

CaF2 lens

Material: optical glass CaF2 single crystal

Design wavelength: 1500nm

Design index: 1.425

Dimension tolerance: +0.0/-0.15mm 

Thickness tolerance: ±0.10mm 

Paraxial focal length: ± 2%

Centration: 3 arc minutes

Clear aperture: > 80%

Surface figure: lambda/4 @ 632.8nm

Surface quality: 80/50 scratch and dig

Bevel: 0.25mm x 45 deg