Filters are designed by their manufacturers to transmit or absorb different wavelengths of light. And they are widely used in scientific experiments and industrial applications where that change is necessary. Color Separation Filter,Neutral
Prism can be made from any material that is transparent to the wavelengths for which they are designed. Typical materials include optical glass and plastic,such as fused silica,BK7,SF11,PC etc.. A prism can be used to break light up into it
Optical window is optical glass with grinding and polished faces that are parallel to each other,windows can be a protection of original when it's in two physical environments.And there is almost no effect on visible light,to coat on the su
The dome lens/hemisphere dome we manufactured be used to protect the lens of underwater camera,which could resist the pressure of water,and give a best view field to catch picture.Specification of hemisphere dome we could supplied as follow