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:
Jan. 30, 2018
Filed:
Mar. 04, 2016
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Yosuke Akimoto, Nonoichi, JP;
Akihiro Kojima, Nonoichi, JP;
Miyoko Shimada, Hakusan, JP;
Hideyuki Tomizawa, Kanazawa, JP;
Hideto Furuyama, Yokohama, JP;
Yoshiaki Sugizaki, Fujisawa, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
According to one embodiment, a semiconductor light-emitting device includes a semiconductor layer including a light emitting layer; and a phosphor layer provided on the semiconductor layer. The phosphor layer includes a plurality of phosphors, −0.05<A×(AR)+B×(Np)+C<0.05 being satisfied for −0.149055−(3×0.011797)≦constant A≦−0.149055+(3×0.011797), −0.000192−(3×0.00002461)≦constant B≦−0.000192+(3×0.00002461), and 0.0818492−(3×0.005708)≦constant C≦0.0818492+(3×0.005708). AR is a ratio of a thickness of the phosphor layer to a width of the phosphor layer, and Np is a number of the plurality of phosphors.