The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 1983
Filed:
Oct. 09, 1980
Applicant:
Inventor:
Tetsuo Sekiguchi, Kumagaya, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350429 ;
Abstract
A compact and lightweight zoom lens mount barrel in which the number of layers between the outer edges of lenses and the outer surface of the mount barrel is minimized and for which the assembly operation is simplified. A rear lens group moving cam slots is formed in a support sleeve and a fixed connecting sleeve is threadedly engaged with the support sleeve. Front and rear lens support frames are respectively engaged with the outer and inner periphery of the support sleeve. A front lens group moving cam slots is formed in the front lens group support frame. A fixed sleeve is engaged with the connecting sleeve by a stop screw.