Camera with a built-in zoom lens

Details Camera with a built-in zoom lens Camera with a built-in zoom lens

1987-10-30

1988-08-16

Mathews, A. A.

350429, 350430, G02B 710, G03B 300

Patent

active

047647841

ABSTRACT:
A camera with a built-in zoom lens includes at least first and second lens groups, a zoom frame for moving these lens groups along their optical axis during a zooming operation, a first lens holding frame carrying the first lens group and movable together with the zoom frame, a second lens holding frame carrying the second lens group and movable together with the zoom frame, a rocking arm disposed between the zoom frame and the second lens holding frame, rockingly supported on a camera body and having a first abutment which bears against the zoom frame and a second abutment which bears against the second lens holding frame, and a resilient biasing element for urging the second lens holding frame towards the zoom frame side; in addition to the above biasing element is a lock member for locking the second lens holding frame during a macro operation.

REFERENCES:
patent: 3533344 (1970-10-01), Thomas
patent: 3631786 (1972-01-01), Crapsey
patent: 4168884 (1979-09-01), Tesch
patent: 4318593 (1982-03-01), Tsuji et al.
patent: 4536068 (1985-08-01), Kodaira

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