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Optical Bandpass Filter

Photonics.com
Jan 2007
Deposition Sciences Inc. (DSI)Request Info
 
DSI has introduced a wide-acceptance-angle bandpass filter that can be coated onto curved surface lenses for high-accuracy applications. The thin film coating blocks wavelengths from the visible region of the curved-filter.jpgspectrum (400 nm) into the shortwave infrared wavelength (1200 nm) with a high transmission at 1064 nm. It allows uniform optical performance of the coating on the center area of a lens at normal incidence and performance on the edge of a lens at high angles of incidence. Designed for use across a large cone angle, DSI’s advanced optical interference filter is engineered for demanding tasks in which film requires a high transmission over the entire surface of a curved lens. This abrasive-resistant, super-durable filter features unparalleled coating consistency over the entire curved surface area, DSI said. Bandpass filter deposition across a curved lens is suitable for scanning, target designation, seeker heads and other applications requiring a uniform optical coating over curved surfaces.


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angle bandpass filterBiophotonicscurved surface lensesDSIIndustry Eventsinfrared spectrumnanooptical interferencephotonicsProductsthin-film coating

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