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:
Dec. 18, 2001
Filed:
Nov. 18, 1996
Applicant:
Inventors:
Yasumasa Sawai, Sakai, JP;
Takashi Ohta, Sakai, JP;
Nobuo Mushiake, Minamikawachi-Gun, JP;
Hideki Nagata, Sakai, JP;
Soh Ohzawa, Toyonaka, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 ; G03B 2/100 ; G02B 2/714 ;
U.S. Cl.
CPC ...
G02F 1/1335 ; G03B 2/100 ; G02B 2/714 ;
Abstract
A liquid crystal projector includes an illumination optical system provided with a light source, first and second lens arrays arranged in this order from the light source, a liquid crystal panel, and a polarization changing optical system arranged between the first and second lens arrays. This makes it possible to install the polarization changing optical system and the optical integrator in a smaller space.