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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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GLOSSARY
photonics
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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