Lens barrel

Details Lens barrel Lens barrel

2008-06-17

2008-06-17

Perkey, W. B. (Department: 2862)

Photography

Having variable focal length of camera objective

Lens moves in or out of light path

C396S055000, C396S270000, C396S349000

Reexamination Certificate

active

07389040

ABSTRACT:
A lens barrel includes a radially-retractable optical element constituting a part of photographing optical system, and is movable between a photographing position and a radially-retracted position; a biasing device for biasing the radially-retractable optical element toward the photographing position; and a swing member which is rotatable about a rotation axis extending parallel to the optical axis, the swing member being rotated so as to push the radially-retractable optical element against a biasing force of the biasing device to move the radially-retractable optical element to the radially-retracted position. The radially-retractable optical element and the swing member are mutually positioned so that a moving amount of the radially-retractable optical element per unit of rotation angle of the swing member gradually decreases as the radially-retractable optical element moves from the photographing position to the radially-retracted position.

REFERENCES:
patent: 4768048 (1988-08-01), Wakabayashi
patent: 4887107 (1989-12-01), Nakamura et al.
patent: 5430516 (1995-07-01), Uziie et al.
patent: 5739962 (1998-04-01), Asakura et al.
patent: 6031998 (2000-02-01), Shono
patent: 6366323 (2002-04-01), Shono
patent: 6978089 (2005-12-01), Nomura et al.
patent: 2002/0025159 (2002-02-01), Kanda
patent: 2003/0067544 (2003-04-01), Wada
patent: 2003/0156832 (2003-08-01), Nomura et al.
patent: 2004/0151490 (2004-08-01), Nomura
patent: 2394070 (2004-04-01), None
patent: 6-46314 (1994-02-01), None
patent: 2003-110928 (2003-04-01), None
patent: 2003-111449 (2003-04-01), None
patent: 2004-48266 (2004-02-01), None
U.S. Appl. No. 11/289,556, Nomura, filed Nov. 30, 2005.
U.S. Appl. No. 11/289,558, Nomura, filed Nov. 30, 2005.
U.S. Appl. No. 11/289,594, Nomura, filed Nov. 30, 2005.
U.S. Appl. No. 11/289,557, Nomura, filed Nov. 30, 2005.
U.S. Appl. No. 11/289,560, Nomura, filed Nov. 30, 2005.
U.S. Appl. No. 11,289,600, Nomura, filed Nov. 30, 2005.
U.S. Appl. No. 11/289,481, Nomura, filed Nov. 30, 2005.
U.S. Appl. No. 11/289,601, Nomura, filed Nov. 30, 2005.
U.S. Appl. No. 11/289,602, Nomura, filed Nov. 30, 2005.
U.S. Appl. No. 11/289,739, Nomura, filed Nov. 30, 2005.
English Abstract of JP 6-46314, Feb. 18, 1994.
English Abstract of JP2003-110928, Apr. 11, 2003.
English Abstract of JP2003-111449, Apr. 4, 2003.
English Abstract of JP2004-48266, Feb. 12, 2004.
Reissue U.S. Appl. Nos. 10/815,193 and Reissue U.S. Appl. Nos. 10/815,194, filed Apr. 1, 2004.

Affiliated with

Also associated with

Rating

Lens barrel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lens barrel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens barrel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2805702