Barrier mechanism and camera

Details Barrier mechanism and camera Barrier mechanism and camera

2011-04-05

2011-04-05

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C396S529000, C348S376000

Reexamination Certificate

active

07920336

ABSTRACT:
A barrel includes a through-hole through which an interlocking lever passes, the interlocking lever provided on a barrier drive member to receive a rotational force. The barrier drive member includes a flange portion in a circumferential direction. The flange portion is positioned at the same phase as the interlocking lever and covers the through-hole from an optical axis direction during a rotation of the barrier blades from an open state to a closed state.

REFERENCES:
patent: 5774748 (1998-06-01), Ito et al.
patent: 6988837 (2006-01-01), Ichino
patent: 7150571 (2006-12-01), Ichino
patent: 2004/0165880 (2004-08-01), Ichino
patent: 2006/0024049 (2006-02-01), Ichino
patent: 2004-258120 (2004-09-01), None
patent: 2005-258276 (2005-09-01), None

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