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:
Mar. 14, 2017
Filed:
Dec. 18, 2013
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Inventors:
Kazushige Yamamoto, Kanagawa, JP;
Hiroshi Ohno, Kanagawa, JP;
Soichiro Shibasaki, Tokyo, JP;
Hiroki Hiraga, Kanagawa, JP;
Naoyuki Nakagawa, Tokyo, JP;
Mutsuki Yamazaki, Kanagawa, JP;
Shinya Sakurada, Tokyo, JP;
Michihiko Inaba, Kanagawa, JP;
Assignee:
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/052 (2014.01); H01L 31/042 (2014.01); G02B 7/183 (2006.01); H02S 40/22 (2014.01); H02S 40/20 (2014.01); H01L 31/048 (2014.01); H01L 31/054 (2014.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
H02S 40/22 (2014.12); H01L 31/048 (2013.01); H01L 31/0547 (2014.12); H02S 40/00 (2013.01); H02S 40/20 (2014.12); G02B 6/005 (2013.01); Y02E 10/52 (2013.01);
Abstract
A light concentrator of an embodiment includes: a first high refractive index layer, a first low refractive index layer, and a second high refractive index layer stacked in sequence, wherein a surface on the first low refractive index layer side of the first high refractive index layer has a periodic concavoconvex region.