Chromatic light separator and picture projector using a chromatic light separator
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United States of America Patent
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Aug 13, 1996
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app pub date -
May 20, 1993
filing date -
May 22, 1992
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Abstract
This invention concerns chromatic light separators, and is particularly intended to reduce their dimensions. A chromatic separator in accordance with the invention contains at least two selective wave length mirrors. According to one characteristic of the invention, the two selective mirrors are nested holographic mirrors. The invention is particularly suitable for three-color rear-projection type picture projectors using liquid crystal screens.
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