Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1999-05-27
2000-11-07
Sugarman, Scott J.
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
359638, 348338, G02B 2714
Patent
active
061444987
ABSTRACT:
A color separation device useful in information display systems is assembled from three prisms in an arrangement that provides for air equivalent thickness adjustment for each color. The air equivalent thickness adjustment provides for the correction of deviations in any of the three prisms, as well as providing a method to correct for the chromatic aberration arising from other optical elements in the information display system. The color separation device improves image quality and provides opportunities to lower the display system cost by using low tolerance components and/or plastic optical components normally having a high chromatic aberration.
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Keating, Michael P., "Geometric, Physical & Visual Optics," 1988, Butterworths, Boston, MA, pp. 139-142.
Bryars Brett J.
Hendrix Blain J.
Optical Coating Laboratory, Inc.
Sugarman Scott J.
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