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. 22, 2003
Filed:
Jan. 31, 2000
Yukinori Shioya, Tokyo, JP;
Masao Imai, Tokyo, JP;
NEC Viewtechnology, Ltd., Tokyo, JP;
Abstract
A video projector which can obtain high brightness of a projected image, high color purity and low color shading and which can be downsized and reduce the manufacturing cost is provided. The video projector has: an optical source ; a color selection scanning device for selectively filter a color of a light from the optical source to generate a light flux having a specific color in synchronism with a supplied video signal; a video displaying device for modulating an intensity of the light flux in synchronism with the video signal pixel by pixel to form a modulated image responsive to the video image; an imaging lens disposed between the color selection scanning device and the video displaying device , for imaging an intensity distribution and a color distribution of the light flux outgoing from the color selection scanning device on a surface of the video displaying device ; and a projecting lens for projecting the modulated image formed by the video displaying device