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:
Aug. 09, 2016
Filed:
Jan. 17, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The illumination apparatus includes a light collector directing light from a light source, radially inward further than the light source, and a light guider provided radially inside further than the light source so as to circumferentially extend and guiding the light from the light source toward an area extending to a side away from the light source and causing the light from the light source to exit toward a light projecting direction. The light collector includes two reflective surfaces on a light projecting direction side and on an opposite side thereto in the thickness direction, and a light exiting opening between the two reflective surfaces. In a sectional plane along the thickness direction, a direction of a center of a light exit range from the light collector tilts to the opposite side to the light projecting direction side.