Optical: systems and elements – Lens – With variable magnification
Patent
1997-10-21
1999-02-09
Epps, Georgia
Optical: systems and elements
Lens
With variable magnification
359699, G02B 1514
Patent
active
058702326
ABSTRACT:
A lens barrel comprises a first lens group, a cam tube provided with a cam, a plurality of engagement members arranged to move integrally with the first lens group and engaged with a plurality of cam parts of the cam, and a moving member for moving the cam tube along an optical axis with a rotation of the cam tube, wherein a cam part with which at least one engagement member of the plurality of engagement members is engaged is connected to a cam part with which an engagement member adjacent to the at least one engagement member is engaged.
REFERENCES:
patent: 3503675 (1970-03-01), Muller
patent: 3715929 (1973-02-01), Konigslehne et al.
patent: 4179191 (1979-12-01), Freudenschuss
patent: 4322151 (1982-03-01), Weiss
patent: 4576446 (1986-03-01), Kamata
patent: 4993815 (1991-02-01), Yamazaki
patent: 5037187 (1991-08-01), Oda
patent: 5144493 (1992-09-01), Nomura
patent: 5151729 (1992-09-01), Takayama
patent: 5218479 (1993-06-01), Chiou
patent: 5469300 (1995-11-01), Nomura
patent: 5485315 (1996-01-01), Nomura
patent: 5488513 (1996-01-01), Tanaka
patent: 5506731 (1996-04-01), Smiley
patent: 5586467 (1996-12-01), Weber
Namai Akihiro
Tsuji Kanji
Canon Kabushiki Kaisha
Epps Georgia
Mack Ricky
LandOfFree
Zoom lens arrangement including endless cam surface and pluralit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Zoom lens arrangement including endless cam surface and pluralit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zoom lens arrangement including endless cam surface and pluralit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1954692