Optical: systems and elements – Lens – High distortion lens
Patent
1996-11-27
1998-11-24
Font, Frank G.
Optical: systems and elements
Lens
High distortion lens
359663, G02B 1322, G02B 1318
Patent
active
058415874
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.
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Font Frank G.
Klee Maurice M.
Stafira Michael P.
U.S. Precision Lens Inc.
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