Optical filters
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Optical Filters

Coated filter optics and optical glass filters

Our company manufactures and supplies all kinds of optical filters to industry and science. No matter whether you need color glass filters, coated filters or customized optical filters. We will be able to supply a solution for your optical task in most cases.

Optical filters are used to block, transmit, reflect, or to cut out a defined light wavelength range, so the principle design of filter optics can be dichroic, absorbing, or transmitting. Filter optics can work as bandpass, short-pass, long-pass, notch, or as attenuation filters.

Optical filter components are used for camera applications, illumination systems, laser applications, image processing, in spectroscopy, for optical analysis systems, and similar applications. Below you will find the most popular and constantly available filters for common use from our extensive filter manufacturing program. Please follow the links for details:


Cemented optical filters that create a bandpass filter combinationnullspacerCoated optical filters


Optical filters made from SCHOTT colored glasses

More than 100 different high quality optical color glass filter materials from SCHOTT for various applications and wavelengths from stock. Our extensive SCHOTT-filter program includes short pass, long pass, bandpass, neutral density, and color filters as well as conversion filters. This type of filters are absorptive optics. more...


Neutral Density Filters, Grey Filters, Optical Density Filters

NG 1, NG 3, NG 4, NG 9, NG 10, NG 11 & NG 12 SCHOTT-filters attenuate incident light with a defined level. The filter materials are neutral in color and broadband in transmission. more...


Heat Reflection Filters (Heat Reflecting Hot Mirrors) SIR Series

Our dielectric heat reflection SIR has a dichroic filter coating. It is highly transparent to visible light and effectively blocks the infrared band up to a wavelength of approx. 1100nm. more...


Heat Reflecting Filters with extended blocking range, SIR-IR Series

The SIR-IR filters features a high transmission in the visible and a broad band blocking of infrared wavelengths. The dichroic filter system represents the best possible compromise in terms of maximum blocking bandwidth and high visible transmission. view more...


Cold Light Filters, SHD-Series

Our dichroic SHD cold light filter reflects the visible light of a light beam by 45° while it simultaneously transmits infrared radiation up to 2500 nm at i = 0°. This is the function principle of a dichroic beamsplitter. view more...


Heat-Absorbing Filters KG1-KG5

Heat-absorbing filters from SCHOTT KG-filter glasses allow the visible wavelength range to pass through and absorb the heat radiation of a light source. Such heat protection filters operate largely independently of the angle of incidence. view more...


You search for optical filters not listed here or you need engineering support?

Please take into account that it is impossible to list all types of optical filters we make for any kind of optical applications on this website. To request a quotation for custom filters, cemented filter combinations, low fluorescence filters, or special interference filters for individual applications please use our coating request form. If you are in search of engineering support please do not hesitate to send us your optical filter requirements.