What are the commonly used optical materials for filters and optical lenses?

In modern optical systems, the formation of optical paths relies on optical refractive elements and optical reflective elements. Modern optical systems work in a wide range of optical bands, so when we produce filters and lenses, we will also select the optimal optical material according to different optical bands to design and produce filters and optical lenses.

Filters and optical lenses optical parts are made of optical glass. In general, optical glass can pass through light with a wavelength of 0.35um to 2.5um, and light beyond this range will be strongly absorbed by optical glass. Therefore, when designing and producing filters and optical lenses, optical glass made of special unconventional materials will be selected for the working range of different wavelength bands.

So what are the commonly used optical materials for filters and optical lenses?

Shenzhen Nahong Optoelectronics introduces you to some commonly used optical materials, which provide you with reference when designing and producing filters and optical lenses.

The list of common filter and optical lens optical materials is as follows:

Optical grade glass: crown glass, flint glass and other colorless optical glass.

Ultraviolet optical grade glass: ultraviolet fused silica, calcium fluoride, magnesium fluoride, etc.

Infrared band optical grade glass: infrared fused silica, calcium fluoride, magnesium fluoride, gemstone, silicon, germanium, zinc selenide, etc.

Crystal optical grade glass: Bingzhou stone, YVO4, quartz crystal, lithium niobate, a-BBO, etc.