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. 22, 2011
Filed:
Dec. 28, 2005
Jong Rak Sohn, Kyungki-do, KR;
IL Woo Park, Kyungki-do, KR;
Yun Seup Chung, Seoul, KR;
Chang Hoon Kwak, Seoul, KR;
Chul Soo Yoon, Kyungki-do, KR;
Joon Ho Yoon, Seoul, KR;
Jong Rak Sohn, Kyungki-do, KR;
Il Woo Park, Kyungki-do, KR;
Yun Seup Chung, Seoul, KR;
Chang Hoon Kwak, Seoul, KR;
Chul Soo Yoon, Kyungki-do, KR;
Joon Ho Yoon, Seoul, KR;
Samsung LED Co., Ltd., Gyunggi-do, KR;
Abstract
The present invention relates to phosphor blend for wavelength conversion and a white light emitting device using the same. The phosphor blend of the invention comprises three phosphors, A(PO)Cl:Eu, DSiO:Eu and MS:Eu at a composition where near ultraviolet radiation is converted into light positioned at a CIE coordinate (x, y), where 0.25≦x≦0.45 and 0.25≦y≦0.43, wherein A comprises at least one of Sr, Ca, Ba, and Mg, D comprises at least one of Ba, Sr, and Ca, and M comprises at least one of Sr and Ca. Furthermore, the present invention provides a new white light emitting device in combination of the phosphor blend and a near ultraviolet LED.