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Electrically Tunable Liquid Crystal Spectral Image Filters

S mall B usiness I nnovation R esearch. Electrically Tunable Liquid Crystal Spectral Image Filters. Cambridge Research & Instrumentation, Inc. Cambridge, MA. INNOVATION New class of filters suitable for the construction of small, low-cost multispectral imagers. ACCOMPLISHMENTS

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Electrically Tunable Liquid Crystal Spectral Image Filters

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  1. Small Business Innovation Research Electrically Tunable Liquid Crystal Spectral Image Filters Cambridge Research & Instrumentation, Inc. Cambridge, MA INNOVATION New class of filters suitable for the construction of small, low-cost multispectral imagers • ACCOMPLISHMENTS First liquid crystal tunable filter for use to 2.4 microns Loss factor an order of magnitude lower than any current dichroic polarizer  Demonstrated expanded spectral range, increased filter aperture and reduced thickness  Tuning reduced from 50 to 15 milliseconds • COMMERCIALIZATION  Digital color cameras for science, industry and medicine  Sales are $1million annually and expected to double within next 12 months  Filters used in fluorescence multiprobe and fish imagery systems Color Picture taken with Monochromatic CCD Camera GOVERNMENT/ SCIENCE APPLICATIONS Current development funded under Planetary Instrument Development and Definition Program Potential demonstration on Mars Rover as part of autonomous feature navigation system 1991 Phase II; NAS7-1246 Success Story # 130 Jet Propulsion Laboratory

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