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:
Feb. 25, 1997
Filed:
Feb. 26, 1996
Applicant:
Inventor:
Hisashi Tatamiya, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
396358 ;
Abstract
A shock absorbing apparatus for a mirror in a single lens reflex camera includes a mirror drive mechanism which moves the mirror, normally located within a photographing optical path, out of the photographing optical path immediately before the photographing operation. A damper damps shock caused when the mirror is moved by the mirror drive mechanism. The damper includes a cylinder, a piston which is moved in the cylinder and which is connected to the mirror, a valve mechanism which opens and closes a flow passage in accordance with the movement of the piston, and an adjusting device which adjusts a surface area of the flow passage.