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:
Jan. 28, 2003
Filed:
Jun. 25, 2001
Applicant:
Inventor:
Masanobu Ohgane, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/08 ; G02B 7/182 ;
U.S. Cl.
CPC ...
G02B 5/08 ; G02B 7/182 ;
Abstract
A reflection type optical device comprises a transparent base member having an incident light receiving surface, at least a reflection surface for internally reflecting the incident light and a light emitting surface for emitting the reflected light. A dielectric layer is formed on each of the incident light receiving surface and the light emitting surface, and a metal layer is formed on all the remaining surfaces of the transparent base member other than the incident light receiving surface and the light emitting surface.