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:
Jul. 15, 1997
Filed:
Dec. 16, 1994
Tatsuya Suzuki, Tokyo, JP;
Yasuo Yamazaki, Hino, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
In a camera of this invention, a lens barrel including a photographing lens built therein and an aperture opening formed in a camera body are coupled to each other by a light-shield unit in a light-tight manner. The light-shield unit comprises a bellows member made of rubber, sheet, cloth or other material capable of shielding light, which is folded to have top and bottom creases in the spiral form, and a spiral skeleton member comprising a linear spring and fitted to the inner side of a portion of the bellows member which defines the top crease. The skeleton member prevents a flexion of the bellows member, thereby preventing the bellows member from interfering with the flux of photographing light coming through the lens.