Neutral density filters

Neutral density filters area the optical components coated with metal layers to reduce the intensity of light over broad wavelength band without producing much color variation. Intensity will be reduced by reflection and absorption. Applications of the netural density filter include photography, laser beam attenuation for the low power applications and in spectroscopy.

 

Neutral density filters will be designed to required optical density.

Substrates Wavelength Region AOI Optical Density(OD)
BK7, UVFS
UV, VIS, NIR
0 and /or 45 deg
0.2, 0.5, 1, 2, 3, 4

Beam Splitter

Di electric multi layers will be coated on optical components to split the intensity of wide wavelength band in to desired transmission and reflection ratio. These beam splitters used in Binoculars vision, projection system, laser range finders and imaging applications. Beam splitters available as plate and cube optical components

Substrates Wavelength Region AOI Split Ratio Durability
BK7, UVFS
UV, VIS, NIR
0 and /or 45 deg
50/50, 60/40, 70/30. 80/20
MIL-C-48497A