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. 30, 2004
Filed:
Aug. 13, 1999
Applicant:
Inventors:
Tatsuhide Takebayashi, Tokyo, JP;
Takayuki Sensui, Tokyo, JP;
Assignee:
PENTAX Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/222 ; G08B 3/00 ; G08B 5/00 ; G08B 7/00 ; G08B 7/28 ;
U.S. Cl.
CPC ...
H04N 5/222 ; G08B 3/00 ; G08B 5/00 ; G08B 7/00 ; G08B 7/28 ;
Abstract
An internal indicator of a viewfinder of a camera includes a viewfinder optical system which includes a focusing screen on which an object image is formed through a photographic optical system of the camera; at least one optical deflector that is positioned on or in the close vicinity of the focusing screen and is provided with at least one deflecting surface; and at least two light emitters for illuminating the optical deflector from the outside of the viewfinder optical system, which emit at least two light beams of different colors to be incident on the optical deflector.