Optical filters
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Optical Filter Glasses & Coated Filter Optics

Our company manufactures and supplies all kinds of optical filters to industry and science. No matter whether you need color glass filters, coated standard filters or custom coated filters. In most cases we will be able to supply the solution for your optical filter needs.

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

Optical filters are used e.g. in camera applications, illumination systems, spectroscopy, laser applications, image processing and optical analysis systems. Below you will find a selection of the most popular filters for the most common applications 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 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. Color glass filters belong to the 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 relatively broad band in transmission. more...


Heat Reflection Filters (Heat Reflecting Hot Mirrors) SIR Series

Our dielectric heat reflection SIR is a coated, dichroic filter. It is 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 good 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 lets infrared radiation up to 2500 nm pass 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 consider, 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 like cemented filter combinations, low fluorescence filters or a 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.