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:
Jun. 12, 2018
Filed:
Jan. 12, 2015
Applicant:
Lg Innotek Co., Ltd., Seoul, KR;
Inventors:
Assignee:
LG INNOTEK CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/16 (2006.01); C09K 11/02 (2006.01); C09K 11/08 (2006.01); H01L 33/50 (2010.01);
U.S. Cl.
CPC ...
F21V 9/16 (2013.01); C09K 11/02 (2013.01); C09K 11/08 (2013.01); H01L 33/505 (2013.01); H01L 33/504 (2013.01); H01L 2224/48091 (2013.01); Y10T 428/24926 (2015.01); Y10T 428/252 (2015.01);
Abstract
Provided is a ceramic phosphor plate including a first phosphor layer containing a short-wave phosphor in a transparent ceramic matrix and a second phosphor layer containing a long-wave phosphor, thereby enabling the reduction of a production cost by reducing an amount used of the high-priced long-wave phosphor (red phosphor).