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:
Feb. 20, 2018
Filed:
Jun. 01, 2016
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Akira Hashiya, Osaka, JP;
Taku Hirasawa, Kyoto, JP;
Yasuhisa Inada, Osaka, JP;
Mikiko Matsuo, Nara, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/10 (2010.01); H01L 33/50 (2010.01); H01L 33/44 (2010.01);
U.S. Cl.
CPC ...
H01L 33/508 (2013.01); H01L 33/44 (2013.01);
Abstract
A light-emitting apparatus comprising a photoluminescent layer that emits light in response to excitation light and has a light-emitting surface, the light from the photoluminescent layer being emitted through the light-emitting surface. The light-emitting surface includes a first region and a second region. The light from the photoluminescent layer includes first light having a wavelength λin air. The first light emitted through the first region has a smaller directional angle than the first light emitted through the second region.