Birefringent filter

A filter is a kind of optical filter in the shape of a piece. Usually its transmittance (reflectivity) is related to the wavelength, and some filters’ transmittance (reflectivity) is related to polarization or spatial distribution. The birefringent filter is composed of birefringent crystals and uses the interference of polarized light to obtain monochromatic light. It is mainly used for monochromatic light detection of sunlight, and is also an ideal element for tuning, spectral resolution and line width compression.

滤镜 2 black


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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