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, 2000
Filed:
Oct. 23, 1998
Ritsuo Machii, Mito, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An illumination apparatus includes a lamp, and a holding member for rotatably holding the lamp about its optical axis as a rotational axis. An projector includes the illumination apparatus, a first optical system for separating white light from the illumination apparatus into light of red, green and blue, a first panel for modulating the light of red per each pixel, a second panel for modulating the light of green per each pixel, a third panel for modulating the light of blue per each pixel, a projection lens, and a second optical system for superimposing the modulated light of red, green and blue on a display surface, such as a screen, in cooperation with the projection lens.