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:
Mar. 10, 1998
Filed:
Jun. 05, 1995
Takahisa Shiozawa, Kawasaki, JP;
Masato Muraki, Inagi, JP;
Hiroyuki Ishii, Yokohama, JP;
Shigeru Hayata, Kodaira, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An illumination device, includes a secondary light source forming system having a deflecting member with a conical light deflecting surface for transforming received light into substantially ring-like light, the secondary light source forming system forming a ring-like secondary light source by using the ring-like light; and an optical system for projecting divergent lights from portions of the secondary light source obliquely onto a surface to be illuminated so that the projected lights are superposed one upon another on the surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile