Plano-Concave Lenses Manufacturer Description of Plano-Concave Lenses : The plano-concave lenses are made from various material, which are manufactured with one concave surface and one plane surface. These lenses have negative focal lengths. These lenses diverge collimated incident light.

Bi-concave glass lenses Manufacturers Description of Bi-concave glass lenses : Bi-concave glass lenses are manufactured with both surfaces concave. These lenses have negative focal lengths. These lenses diverge collimated incident light and form virtual images, which are seen through the l

Optical Window Manufacturer Description of Optical Window : Windows are applied to isolate different physical environments while allowing light to pass. When selecting windows you should consider materials, transmission, scattering, wavefront distortion, parallelism and resistance to certa