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. 15, 2003
Filed:
Feb. 14, 1997
Kenichi Kimura, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed is a reflecting optical system in which a beam from an object is incident through an incident surface formed in a surface of a transparent body, the beam is reflected by a reflecting surface of internal reflection comprised of a curved surface provided in a part of the transparent body, and thereafter the beam is emergent from an emergent surface of the transparent body, thereby forming an image, wherein a radius of curvature of the incident surface is set to be nearly equal to a distance from the vertex of the incident surface to the object on a reference axis and wherein a radius of curvature of the emergent surface is set to be nearly equal to a distance from the vertex of the emergent surface to the image on the reference axis.