Two piece curved projection lens method and apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 8, 2000
Grant Date -
N/A
app pub date -
Sep 22, 1998
filing date -
Sep 22, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A two piece plastic lens for a large screen projection system in which the two lens elements are formed with similar curves. The lens is supported at its peripheral edge by a flexible strip having a T-cross section that fits into a matching groove in a frame or on the housing. The curved lens elements tend not to separate with temperature changes and the like and focus and display quality are maintained.
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Cited Art Landscape
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