Optical: systems and elements – Lens – With variable magnification
Reexamination Certificate
2008-05-13
2008-05-13
Ben, Loha (Department: 2873)
Optical: systems and elements
Lens
With variable magnification
C359S700000, C359S701000, C359S704000, C359S694000, C359S823000, C359S825000, C359S826000, C359S828000, C396S072000, C396S089000
Reexamination Certificate
active
11657309
ABSTRACT:
There is disclosed a lens barrel including a fixed frame, a rotary frame rotatable with respect to the fixed frame to advance or retract in an optical axis direction, and a rectilinear guide frame rotatable relative to the rotary frame to displace integrally with the rotary frame in the optical axis direction. In this structure, a front end portion of the rectilinear guide frame on a subject side in the optical axis direction is exposed from the rotary frame.
REFERENCES:
patent: 6081391 (2000-06-01), Nishio et al.
patent: 6195212 (2001-02-01), Miyamoto
patent: 6469841 (2002-10-01), Nomura et al.
patent: 6839187 (2005-01-01), Nomura et al.
patent: 6987930 (2006-01-01), Nomura
patent: 7130132 (2006-10-01), Lee
patent: 7184228 (2007-02-01), Hamasaki et al.
patent: 8-313788 (1996-11-01), None
patent: 2004-252365 (2004-09-01), None
Hayashi Shigeo
Okabe Sayoko
Watanabe Akira
Yamauchi Yasuteru
Yoshii Manabu
Ben Loha
Frishauf Holtz Goodman & Chick P.C.
Olympus Imaging Corp.
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