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. 18, 1995
Filed:
Nov. 12, 1992
Applicant:
Inventors:
Katsuaki Mitani, Ibaraki, JP;
Noboru Yasumatsuya, Katano, JP;
Ichiro Matsuzaki, Niigata, JP;
Hiroshi Kuwada, Niigata, JP;
Assignees:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Kuraray Co., Ltd., Okayama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
359457 ; 359596 ;
Abstract
A lenticular lens provided on the viewer side of a transmission type screen is composed of at least two layers, that is, a surface layer and a base layer at least one of which contains a light dispersing material, and a visible light absorbing material is mingled in at least one of these two layers, or in the light dispersing material, thereby enhancing the image contrast of the transmission type screen.