Light intercepting device of a lens shutter type of camera

Details Light intercepting device of a lens shutter type of camera Light intercepting device of a lens shutter type of camera

1997-01-09

1998-01-13

Lee, Eddie C.

Photography

Single lens reflex camera

Having shutter and additional means to block light from film

396451, 396462, 396494, G03B 900

Patent

active

057088853

ABSTRACT:
A shutter arrangement for a camera which includes a plurality of shutter blades each having a rotational center and an opening formed proximate to the rotational center, a supporting member which supports each of the plurality of shutter blades to be rotatable about the rotational center and a ring member driven to rotate about an optical axis of a photographic lens. The ring member includes a plurality of pins each engaging with a corresponding one of the openings. A light intercepting sheet is also provided which includes a plurality of holes in which the plurality of pins are respectively inserted, so that the ring member and the light intercepting sheet rotate together as a whole about the optical axis when the ring member is driven to rotate.

REFERENCES:
patent: 4944030 (1990-07-01), Haraguchi et al.
patent: 5033819 (1991-07-01), Tanaka
patent: 5034762 (1991-07-01), Kohmoto
patent: 5153626 (1992-10-01), Yamamoto
patent: 5376983 (1994-12-01), Yamazaki et al.

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