Zoom lens device having adjustability features

Details Zoom lens device having adjustability features Zoom lens device having adjustability features

1996-08-20

1998-02-10

Nelms, David C.

Optical: systems and elements

Lens

With support

359694, 359813, G02B 702, G02B 1514

Patent

active

057175306

ABSTRACT:
The present invention is directed to a zoom lens device for use in, for example, a copying machine. A support member for supporting a stationary lens is adjustable relative to a guide device for guiding a movable lens in a direction of an optical axis.

REFERENCES:
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patent: 3851952 (1974-12-01), Werz
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patent: 4865433 (1989-09-01), Okajima
patent: 5130851 (1992-07-01), Shirie
patent: 5231473 (1993-07-01), Kawamura
patent: 5363248 (1994-11-01), Horio

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