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Absoption filters
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Absoption filters

In addition to interference filters based on thin-film technology Eureca also provides absorption filters made of different materials.

The effect of these filters is based on a specific absorption of certain substances, which are embedded in the base material. Depending on the materials used, different filter characteristics are possible. With so called short pass filters the transmission decreases from a specific wavelength (edge ??position) to higher wavelengths, with long-pass filters it increases. Band filters allow light of a larger spectral range to pass. Using a combination of several filters can for example result in the blocking of a certain range of wavelengths.




Page updated at: 07/24/2015