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What Are The Types And Characteristics Of Optical Lens Filters?
2019-04-11 14:04:03

The main feature of optical lens filters is that they can be very large.

Optical lens filters can be divided into two types: thin film absorption filters and thin film interference filters.

Optical Prism

The former is chemically etched on a specific material substrate to locate the absorption line at the desired wavelength.

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Generally, it is used more as n-infrared filter through longer wavelength.The latter is a low-level, multi-stage series solid Fabry-Perot interferometer, which alternately forms a metal dielectric-metal film or an all-dielectric film with high or low refractive index of a certain thickness on a certain film base by vacuum coating.

Optical Glass Protective Window Lens

The selection, thickness or series of membranes are determined by the required central wavelength or transmission bandwidth lambda.

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Optical Window,Optical Protective Window,Optical Prism,Optical Lens,Prism,Spherical Lens,Band Pass Filter,Laser Lens


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