Neutral density filters attenuate, split or combine beams in a range of irradiance ratios with little dependence on wavelength.
FOCtek offers two kinds of neutral density filters, which are neutral grey glass type filters and metallic coated type filters made of optical glass such as N-BK7, H-K9L Fused Silica and so on.
The thickness of neutral grey glass type filters determine the transmission, however, transmission is determined
by coating thickness in the metallic coated optical material type.
| Foctek Photonics, Inc. | |
|---|---|
| Product Category | Optical Filters |
| Product Name | Neutral Density Filter |
| Filter Type | Neutral Density Filters |
