What are the main materials of prisms

The main materials of prisms are BAK4 and BK7. The refractive indices of these two types of glass are different. BAK4 has a high refractive index. For a Paul prism made of BAK4, it can completely reflect 100% of the incident light without considering absorption, while BK7 can only reflect about 83% of the incident light. Therefore, BAK4 has a high optical efficiency, but its price is also very high.

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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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