Zoom lens

Details Zoom lens Zoom lens

1978-12-01

1981-06-16

Henry, Jon W.

350449, G02B 710

Patent

active

042734142

ABSTRACT:
A mechanism for a zoom lens having relatively movable lens groups where the aperture defining means moves with one of the lens groups.

REFERENCES:
patent: 3059533 (1962-10-01), Mellberg
patent: 3566765 (1971-03-01), Nagashima
patent: 3889282 (1975-06-01), Hashimoto
patent: 3906529 (1975-09-01), Filipovich
patent: 3944340 (1976-03-01), Hashimoto

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