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:
Oct. 08, 1991
Filed:
Apr. 24, 1990
Applicant:
Inventors:
Yukio Ozaki, Tokyo, JP;
Hideki Yamamoto, Tokyo, JP;
Assignee:
Pioneer Electric Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359823 ; 359827 ; 359819 ;
Abstract
A lens frame of the projection lens to be attached, for example, on a projector of a projection-type television comprising a lens barrel for supporting the projection lens, a support member for rotatably supporting the lens barrel so that the lens barrel can be rotated about an optical axis of the projection lens to a prescribed position, and a fixing portion for securing the lens barrel to the support member and for frictionally maintaining the lens barrel in a selected position without displacing the projection lens from the optical axis of the projection lens.