Zoom lens with a mechanism for moving a first lens so as to be c

Details Zoom lens with a mechanism for moving a first lens so as to be c Zoom lens with a mechanism for moving a first lens so as to be c

1986-11-10

1988-10-25

Corbin, John K.

350429, 350255, 354208, 354187, G02B 1514, G02B 702, G03B 1902, G03B 1704

Patent

active

047799641

ABSTRACT:
A zoom lens has at least a first group lens and a second group lens which are spaced a greater distance from each other in one of telephoto setting and wide angle setting than the other setting, and a mechanism for moving the first group lens from said one setting toward an image formation plane.

REFERENCES:
patent: 4626076 (1986-12-01), Oshima et al.
patent: 4627691 (1986-12-01), Tomori
patent: 4636040 (1981-01-01), Tokumaru
patent: 4643555 (1987-02-01), Wakabayashi
patent: 4659186 (1987-04-01), Sato et al.
patent: 4669848 (1987-06-01), Wakabayashi
patent: 4681406 (1987-06-01), Naito et al.
patent: 4682854 (1987-07-01), Hanamori et al.

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