1981-07-06
1985-07-02
Corbin, John K.
350432, 350445, 350477, G02B 912, G02B 1318, G02B 2718
Patent
active
045264422
ABSTRACT:
A compact projection lens for a cathode ray tube comprises from the image end, a first group of positive power which corrects aperture dependent aberrations, a second positive group and a third group which corrects for field curvature and distortion. A mirror is inserted between the first and second groups to fold the optical axis.
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Corbin John K.
Sugarman Scott J.
U.S. Precision Lens Inc.
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