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Optical Bandpass Filter
Jul 2006
Deposition Sciences Inc. (DSI)Request Info
Features Wide-Acceptance-Angle Bandpass on Curved Surfaces
SANTA ROSA, Calif., July 12, 2006 -- Deposition Sciences Inc. (DSI), a maker of optical thin-film coatings, announces the availability of its new wide-acceptance-angle bandpass filter, what it said is an abrasive-resistant, superdurable filter that can be coated onto curved surface lenses for high-accuracy applications.

DepositionSciencesBandPassF.jpgThe thin-film coating blocks wavelengths from the visible region of the spectrum (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 the film needs to have a high transmission over the entire surface of a curved lens, the company said.

The filter features coating consistency over the entire curved surface area. Developed with DSI's patented MicroDyn reactive sputtering technology, the filter is processed in the company's in-house facility using proprietary techniques to attain the necessary coating uniformity. According to DSI, this unique, difficult-to-achieve bandpass filter deposition across a curved lens is ideal for scanning, target designation, seeker heads and other applications requiring a uniform optical coating over curved surfaces. 

For more information, visit:; e-mail:

Deposition Sciences Inc.
3300 Coffey Ln.
Santa Rosa, CA 95403
Phone: (707) 573-6700 or 1-866-4DEPSCI
Fax: (707) 573-6748


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