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. 11, 2017
Filed:
Dec. 23, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Masakazu Tohara, Komae, JP;
Takashi Urakawa, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A projector includes an area light source, a spatial light modulator, an illumination system that receives light from the area light source and illuminates the spatial light modulator, and a projection lens that forms an image by the light from the spatial light modulator. The area light source includes one of a light emitting region of a light emitting device and an image of the light emitting region, and the illumination system includes a rod integrator, the rod integrator is arranged so that an entrance plane of the rod integrator faces the area light source, and a size of the entrance plane of the rod integrator is smaller than a size of the area light source.