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:
Feb. 13, 2001
Filed:
Apr. 12, 1999
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention is to provide a projecting apparatus which focuses a plurality of color light components through a lens, illuminates reflection optical modulation elements arranged in units of color light components through a first deflection unit provided near a position where the color light components are focused, guides a light beam from at least one optical modulation element to a projection optical system through a second deflection unit, and superposes and projects pieces of image information based on the optical modulation elements on a predetermined surface through the projection optical system, wherein the second deflection unit is arranged near the stop of the projection optical system to divide the aperture of the stop into a plurality of areas, the first deflection unit is arranged near the stop of the projection optical system, and the optical modulation elements are illuminated with light beams tilted in a direction of division of the stop aperture and in a direction perpendicular to the direction of division.