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:
Dec. 13, 2022
Filed:
Feb. 07, 2019
Applicant:
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Inventors:
Assignee:
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); F21K 9/23 (2016.01); F21K 9/64 (2016.01); C09K 11/77 (2006.01); H01L 25/075 (2006.01); H01L 33/30 (2010.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
H01L 33/504 (2013.01); C09K 11/7777 (2013.01); F21K 9/23 (2016.08); F21K 9/64 (2016.08); H01L 25/0753 (2013.01); H01L 33/30 (2013.01); F21Y 2115/10 (2016.08);
Abstract
A lighting apparatus including at least one light emitting diode (LED) chip configured to emit blue light; a green phosphor having a light emission peak in a range of 500 nm to 550 nm; and a red phosphor having a light emission peak in a range of 600 nm to 650 nm, in which the red phosphor includes a first red phosphor having a light emission peak in a range of 620 nm to 630 nm and a second red phosphor having a light emission peak in a range of 630 nm to 640 nm, and the full widths at half maximum of the first and second red phosphors are in a range of 20 nm to 60 nm, respectively.