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. 15, 2002
Filed:
Apr. 27, 2000
Applicant:
Inventor:
Midori Kanaya, Kanagawa, JP;
Assignee:
Sony Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/714 ; G02B 2/728 ; G02B 5/30 ; H04N 5/225 ; G06K 9/00 ;
U.S. Cl.
CPC ...
G02B 2/714 ; G02B 2/728 ; G02B 5/30 ; H04N 5/225 ; G06K 9/00 ;
Abstract
Disclosed is a light divergence angle limiting apparatus for improving color purity and displaying a high-quality image by blocking unnecessary color rays except for a predetermined color ray. A divergence angle of at least one of a plurality of color rays is limited in consideration of light emission characteristics of a light source so that color rays (for example, B and G rays) different from a predetermined color ray (for example, R ray) do not enter a pixel corresponding to the predetermined color ray by using a light blocking plate provided as a light divergence angle limiting apparatus.