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:
Apr. 21, 2009
Filed:
Feb. 15, 2007
Kazutaka Inoguchi, Kawasaki, JP;
Motomi Matsunaga, Kawasaki, JP;
Kazutaka Inoguchi, Kawasaki, JP;
Motomi Matsunaga, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image display apparatus having a wide view angle of an observed image with a small (thin) structure, which includes: two image forming elements; and an optical system guiding a beam from the image forming elements to two observation areas, wherein the system includes curved reflecting surfaces, and is symmetrical about a symmetry plane intermediate between the observation areas, in which a beam from the image forming element on a side of the symmetry plane is reflected on a curved reflecting surface on the side, reflected on a curved reflecting surface on the other side, is reflected on the surface on the side, and transmits a surface SLa to be guided to the observation area on the side; and an area, in the surface Sla, which a beam LLa traveling along an optical path closest to the symmetry plane transmits, has a shape having positive refractive power.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile