Color separation prism assembly and method for making same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 7, 2000
Grant Date -
N/A
app pub date -
May 27, 1999
filing date -
Jun 11, 1998
priority date (Note) -
Expired
status (Latency Note)
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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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