LCD projection lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 24, 1998
Grant Date -
N/A
app pub date -
Nov 27, 1996
filing date -
Apr 29, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A projection lens for use with LCD panels is provided. The lens has two aspherical meniscus elements which are concave to each other and are located in the vicinity of the lens' aperture stop and a color-correcting doublet which provides most of the positive optical power of the lens. The lens can also include an aspherical corrector lens element of weak optical power which is located on the side of the two meniscus elements opposite to the color correcting doublet.
First Claim
Family
International Classification(s)
Cited Art Landscape
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