1981-08-21
1984-04-17
Corbin, John K.
350444, G02B 1514, G02B 1708
Patent
active
044430680
ABSTRACT:
A zoom lens system has a first set of lenses having a positive focal length and a second set of lenses having a negative focal length. The first set of lenses which is located closer to the object than the second set constitutes a reflecting system, while the second set of lenses constitutes a transmission lens system.
REFERENCES:
patent: 4264136 (1981-04-01), Ogino
patent: 4278330 (1981-07-01), Buchroeder
Asahi Kogaku Kogyo Kabushiki Kaisha
Corbin John K.
Sugarman Scott J.
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