Optical unit and imaging device

Details Optical unit and imaging device Optical unit and imaging device

2003-10-24

2008-08-26

Blackman, Rochelle-Ann (Department: 2862)

Photography

Having variable focal length of camera objective

Power zoom

C396S079000, C396S349000, C359S684000, C359S696000, C359S698000, C359S745000, C359S817000, C348S240300, C348S347000

Reexamination Certificate

active

07418200

ABSTRACT:
A collapsible type optical unit is described that is capable of moving its optical system between a working position and a retracted position as well as an image-pickup apparatus including the optical unit. The optical unit and the image-pickup apparatus are capable of acquiring lens-position information by detecting a position of a lens barrel supported to be movable with respect to a fixed barrel. The collapsible type optical unit includes a second group lens frame movable along a direction of its optical axis with respect to a fixed ring and rear barrel, and a solid-state image-pickup device provided behind the second group lens frame, in which on the movable second group lens frame, a position-detecting means for detecting a position of the second group lens frame is provided.

REFERENCES:
patent: 6339681 (2002-01-01), Takeshita
patent: 6469840 (2002-10-01), Nomura et al.
patent: 6483994 (2002-11-01), Kabe et al.
patent: 6546202 (2003-04-01), Onozuka et al.
patent: 7-234443 (1995-09-01), None
patent: 11-109208 (1999-04-01), None
patent: 2000-194046 (2000-07-01), None
Patent Abstracts of Japan, publication No. 2000-131729, publication date May 12, 2000.

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