filters can be divided by spectral band?

Through the length of the spectrum (i.e. the region where the spectrum is located), the filter is divided into: UV filter, visible filter, near-infrared filter, medium infrared filter and far-infrared filter.

Spectral wavelength range:

UV filter 180 ~ 400nm

Visible light filter 400 ~ 700nm

Near infrared filter 700 ~ 3000Nm

Infrared filter above 3000Nm ~ 10um


Hanzhong Brisun Optics Co., Ltd. Is the high precision optical element manufacturer provides customized production of Various optical lenses, including spherical lens, cylindrical lens, optical window, mirror, prism, filter, metal base mirror and other high-precision optical elements. The base materials include various optical glass, fused quartz, calcium fluoride (CaF2), zinc selenide (ZnSe), germanium (GE), silicon (SI), sapphire, metal and other materials. And provide antireflective film, high reflection film, spectroscopic film, metal film and other optical coatings.

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