Lens barrier mechanism for use in a camera

Details Lens barrier mechanism for use in a camera Lens barrier mechanism for use in a camera

1994-07-13

1996-01-23

Hayes, Monroe H.

Optical: systems and elements

Prism

With reflecting surface

359511, G03B 1700

Patent

active

054868890

ABSTRACT:
Two barrier blades, a barrier interlocking plate and a barrier driver plate are arranged on a base to overlap one another. A first spring is arranged between the barrier interlocking plate and the barrier driver plate. By over-charging the first spring, the barrier blades are tightly closed. A second spring is provided between the barrier driver plate and the base to push both of the two barrier blades through the barrier interlocking plate 2. A through hole and a cutout are formed in the barrier driver plate at positions which do not interfere with the opening and closing loci of the barrier blades. The first and second springs are arranged in the through hole and the cutout, respectively.

REFERENCES:
patent: 4410253 (1983-10-01), Tsuboi
patent: 4595268 (1986-06-01), Tsuboi

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