Compact camera with apparatus size adjustment by zooming

Details Compact camera with apparatus size adjustment by zooming Compact camera with apparatus size adjustment by zooming

1990-03-19

1991-01-22

Mathews, A. A.

354230, 3542341, G03B 908, G03B 1332

Patent

active

049874357

ABSTRACT:
A compact camera has a zooming lens system for regulating a focal distance and a shutter blade member for opening and closing the lens system. The blade member is shifted forwardly from its rest position to open the lens system through a given shift amount effective to determine a lens aperture size to effect exposure, and subsequently is shifted reversely to close the lens system to return to the rest position. A driving mechanism is connected to the blade member to undergo a reciprocating stroke to drive the blade member forwardly and reversely to effect opening and closing of the lens system. The blade member and the driving mechanism are disposed on a substrate. An adjusting mechanism is disposed around the substrate. The adjusting mechanism includes a stopper member undergoing displacement in response to the zooming of the lens system. The stopper member acts on the driving mechanism to control the reciprocating stroke of the driving mechanism according to the displacement of the stopper member so as to limit the shift amount of the blade member to thereby effect adjustment of the lens aperture size according to the lens focal distance or the zooming. Generally, the adjustment is carried out such as the smaller the focal distance, the smaller the lens aperture size.

REFERENCES:
patent: 4274725 (1981-06-01), Gross
patent: 4572645 (1986-02-01), Yoshida et al.
patent: 4822137 (1989-04-01), Goertz et al.
patent: 4865433 (1989-09-01), Okajima et al.

Affiliated with

Also associated with

Rating

Compact camera with apparatus size adjustment by zooming does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compact camera with apparatus size adjustment by zooming, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact camera with apparatus size adjustment by zooming will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1557471