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. 01, 2012
Filed:
Mar. 16, 2009
Xinbing Liu, Acton, MA (US);
Janet Milliez, Somerville, MA (US);
Xinbing Liu, Acton, MA (US);
Janet Milliez, Somerville, MA (US);
Panasonic Corporation, Osaka, JP;
Abstract
A surface light emitting apparatus capable of providing uniform illumination while efficiently using a laser light. The apparatus comprises a light source section that includes at least one light source which emits laser beam; an optical element section that includes at least one diffractive optical element section that modifies a wavefront of the laser beam emitted from the light source section by diffraction action; and an optical guiding section that guides from an incidence surface of the optical guiding section the laser beam emitted from the diffraction optical section and emits the laser beam from a radiation surface of the optical guiding section.