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:
Sep. 09, 2014
Filed:
Jul. 13, 2011
Hiroshi Takatori, Saitama, JP;
Akinobu Seki, Saitama, JP;
Noriyuki Kawahara, Saitama, JP;
Enplas Corporation, Kawaguchi, JP;
Abstract
A lighting device preventing an illumination variation on a surface to be irradiated. The lighting device has a first light emitting surface section () which is a surface formed by rotating a bus with a central axis as a rotation axis in a first angle area (−θ) of an angle (θ) relative to a cross section of the bus which is an intersection line with the cross section perpendicular to a surface () to be irradiated and including the central axis of a lighting lens (), a second light emitting surface section () formed in a second angle area (θ≦θ≦180° and −180°≦θ≦−θ) of the angle (θ) so that a light flux emitted toward the surface () increases as compared with the case where the first light emitting surface section () is formed in a whole-angle area (0°≦θ<360°) on the light emitting surface section (), a third light emitting surface section () formed by the step between the first light emitting surface section () and the second light emitting surface section ().