Lens barrel

Details Lens barrel Lens barrel

2005-06-07

2005-06-07

Mack, Ricky (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S699000, C359S826000

Reexamination Certificate

active

06903879

ABSTRACT:
The present invention provides a lens barrel in which all lens groups are attached to a leading cylindrical body. A movable lens group of the lens groups is moved by a driving source incorporated in the leading cylindrical body. The lens barrel is less likely to be influenced by external forces and can be made smaller. The lens barrel includes first, second, and third cylinders, and first, second, and third lens groups attached to the third cylinder, which is extended first among the first, second, and third cylinders. The first and third lens groups are fixed to the third cylinder, and the second lens group is disposed between the first and third lens groups and movable along the optical axis.

REFERENCES:
patent: 3928859 (1975-12-01), Peterson
patent: 4364642 (1982-12-01), Tanaka et al.
patent: 5130851 (1992-07-01), Shirie
patent: 5212598 (1993-05-01), Kikuchi
patent: 5477296 (1995-12-01), Takamura et al.
patent: 5661609 (1997-08-01), Asakura et al.
patent: 5717530 (1998-02-01), Kawamoto et al.
patent: 5793537 (1998-08-01), Nomura et al.
patent: 5812189 (1998-09-01), Kimura et al.
patent: 5886836 (1999-03-01), Sasaki et al.
patent: 5900995 (1999-05-01), Akada et al.
patent: 5932984 (1999-08-01), Murakami et al.
patent: 6094534 (2000-07-01), Omiya
patent: 6115191 (2000-09-01), Ito et al.
patent: 6456792 (2002-09-01), Tanioka
patent: 6466379 (2002-10-01), Nakane
patent: 6575642 (2003-06-01), Nozawa et al.
patent: 2002/0067556 (2002-06-01), Miyakawa
patent: 07-020369 (1995-01-01), None

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