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. 26, 2014
Filed:
Oct. 28, 2011
Koji Takahashi, Osaka, JP;
Yoshiyuki Takahira, Osaka, JP;
David Montgomery, Oxford, GB;
James Suckling, Oxford, GB;
Koji Takahashi, Osaka, JP;
Yoshiyuki Takahira, Osaka, JP;
David Montgomery, Oxford, GB;
James Suckling, Oxford, GB;
Sharp Kabushiki Kaisha, Osaka-shi, JP;
Abstract
A headlamp of one embodiment of this invention includes a laser element for emitting a laser beam, a light emitting section for generating fluorescence upon receiving the laser beam, and a reflecting mirror for projecting the fluorescence. Distribution of the fluorescence emitted by the light emitting section corresponds to Lambertian distribution, and an incident angle of the laser beam with respect to an excitation light irradiated surface, which is a surface of the light emitting section irradiated with the laser beam, is set so that use efficiency of the fluorescence emitted by the light emitting section is increased.