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:
Mar. 14, 1989
Filed:
Apr. 02, 1986
Applicant:
Inventors:
Toshimi Iizuka, Kanagawa, JP;
Shigeru Kamata, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350252 ; 350255 ; 350257 ;
Abstract
A holding member for holding an optical member is made of plastic material, and provided with at least two fit portions on the inner diameter surface thereof in such a way as to project toward the optical axis and also to determine the holding position of the optical member. The holding member further includes a resilient portion at a position of almost equal distance to both fit portions to hold the optical member by pressing it against the fit portions.