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:
Aug. 22, 2006
Filed:
Oct. 02, 2003
Hitoshi Tanaka, Saitama, JP;
Hitoshi Tanaka, Saitama, JP;
PENTAX Corporation, Tokyo, JP;
Abstract
A light shielding structure of a lens barrel including an inner ring and an outer ring, wherein the inner ring includes a through cutout portion, the light shielding structure including an inner flange wall provided with the inner ring; a first annular groove formed on an inner surface of the inner flange wall; a second annular groove formed on an inner peripheral surface of the outer ring; and a light shield ring, wherein the light shield ring includes a cylindrical portion centered about the optical axis, and an outer flange portion which extends radially outwards from a rear end of the cylindrical portion so that the cylindrical portion and the outer flange portion and inserted into the first and second annular grooves, respectively.