Lens barrier

Details Lens barrier Lens barrier

1990-11-08

1992-10-27

Hix, L. T.

G03B 926

Patent

active

051593726

ABSTRACT:
A lens barrier for opening and closing a lens opening of a lens barrel, including a plurality of barrier plates which are spaced from one another in the direction of their thickness so as to slide in a direction perpendicular to the optical axis of the lens opening. A barrier driving mechanism is provided which moves the barrier blades between an open position in which the barrier blades are superimposed on one another outside the lens opening and a closed portion in which the barrier blades are located side by side in the lens opening to close the latter.

REFERENCES:
patent: 3918076 (1975-11-01), Shono
patent: 3978503 (1976-08-01), Shono
patent: 4876563 (1989-10-01), Ishida et al.
patent: 4944030 (1990-07-01), Haraguchi et al.
patent: 4989027 (1991-01-01), Ishii et al.

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