Lens barrel

Details Lens barrel Lens barrel

1994-10-27

1996-02-06

Blankenship, Howard B.

354187, G03B 118

Patent

active

054899583

ABSTRACT:
A lens barrel comprises a barrier provided at a front aperture of a photographing lens, a barrier driving mechanism for opening and closing the barrier, a lens driving mechanism for moving at least one lens group in an optical-axis direction, a driving device for operating the lens driving mechanism and the barrier driving mechanism, and a driving force switching device for transmitting driving force of the driving device to a lens driving mechanism at a state capable of photographing and for transmitting driving force of the driving device to a barrier driving mechanism at a state incapable of photographing linked with the movement of the photographing lens from a state capable of photographing to a state incapable of photographing.

REFERENCES:
patent: 4410253 (1983-10-01), Tsuboi
patent: 4721972 (1988-01-01), Wakabayashi
patent: 4752796 (1988-06-01), Tsukahara et al.
patent: 4771303 (1988-09-01), Matsumoto et al.
patent: 4847648 (1989-07-01), Yamaguchi et al.
patent: 4864338 (1989-09-01), Wakabayashi
patent: 5034762 (1991-07-01), Kohmoto

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