Light quantity adjusting apparatus and image-pickup apparatus

Details Light quantity adjusting apparatus and image-pickup apparatus Light quantity adjusting apparatus and image-pickup apparatus

2007-01-16

2007-01-16

Perkey, W. B. (Department: 2851)

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Reexamination Certificate

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10684931

ABSTRACT:
A light quantity adjusting apparatus which comprises a light-shielding member and a driving unit which drives the opening/closing of the light-shielding member is disclosed. Herein, the light-shielding member is provided with a reinforcement member attached to a partial range including an area liable to deterioration due to repeated opening/closing driving operations.

REFERENCES:
patent: 4348092 (1982-09-01), Hirohata et al.
patent: 6933980 (2005-08-01), Matsumoto

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