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:
Sep. 19, 2000
Filed:
Oct. 29, 1997
Applicant:
Inventor:
Takashi Ohta, Sakai, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
353 31 ; 353102 ;
Abstract
A projector is provided with an illuminator, dichroic mirror for splitting illumination light into a plurality of light components, a plurality of light propagating paths in which the plurality of light components are introduced to corresponding image panels. In a propagating path having a largest distance, there are provided a relay optical system having a relay lens and a field lens. The relay lens and/or the field lens have a refractive index of 1.75 or more.