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:
May. 29, 2007
Filed:
Mar. 13, 2006
Nobuhisa Kojima, Yokohama, JP;
Nobuhisa Kojima, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A light-emitting device is disclosed which allows efficient irradiation of light from a plurality of light sources to achieve a predetermined light emission characteristic and has a small size. The light-emitting device has an optical member which includes a first reflecting surface which reflects light incident thereon from a first light source, a second reflecting surface which reflects light incident thereon from a second light source, and an emergence portion which causes the light from the first reflecting surface and the light form the second reflecting surface to emerge therefrom. The optical member reflects the light by the second reflecting surface and then transmits the light through the first reflecting surface to guide the light to the emergence portion.