CPG optics provide the windows with dimensions from Dia0.2mm to 15000mm, we have different fabricating method for different application.

In optical system, windows is used the separate the environment between outside and inside of the systems, and the key specs is do not change the polarizations and wave front status of the light input the system, so different material and surface flatness choices is a must to consider.

Materials:BK7/Fused Silica/MgF2/CaF2/BaF2/color glass/Gemaniu/Silicon etc.


Material Optical Glass
Irregularity (fringe) l/10
> 85%
Parallelism 1 arc min
Surface Quality 10-5 scratch and dig
Wavefront Distortion 1/10 per 25mm