Feb 23, 2004 - lamps, and discharge lamps based an molecular radiators are .... phosphor particles into polymer precursor liquid results in ..... A droplet of.
US007038370B2
(12) United States Patent Mueller-Mach et a].
(54)
PHOSPHOR CONVERTED LIGHT EMITTING DEVICE
(10) Patent N0.: (45) Date of Patent: (56)
CA (US); Gerd O. Mueller, San Jose, CA (US); Thomas Juestel, Witten
Peter J. Schmidt, Aachen (DE); Walter Mayr, Alsdorf (DE)
(73) Assignee: Lumileds Lighting, US, LLC, San
May 2, 2006
References Cited U. S. PATENT DOCUMENTS
(75) Inventors: Regina B. Mueller-Mach, San Jose, (DE); Wolfgang Busselt, Roetgen (DE);
US 7,038,370 B2
5,998,925 A
12/1999 Shimizu et a1.
6,501,100 B1* 6,552,487 B1*
12/2002 4/2003
Srivastava et a1. .......... .. 257/79 Ellens et a1. .............. .. 313/503
6,576,930 B1 2004/0007961 A1
6/2003 Reeh et a1. l/2004 Srivastava et a1.
2004/0173807 A1*
9/2004
Tian et a1. .................. .. 257/98
* cited by examiner
Jose, CA (US) Notice:
Subject to any disclaimer, the term of this patent is extended or adjusted under 35
U.S.C. 154(b) by 0 days.
(21) Appl. N0.: 10/785,620 (22)
Filed:
Primary ExamineriAshok Patel Assistant ExamineriAnthony J. Canning (74) Attorney, Agent, or FirmiPatent LaW Group LLP
(57)
ABSTRACT
Feb. 23, 2004 A system includes a radiation source capable of emitting ?rst
(65)
Prior Publication Data
US 2004/0256974 A1
light and a ?uorescent material capable of absorbing the ?rst
Dec. 23, 2004
light and emitting second light having a di?‘erent Wavelength than the ?rst light. The ?uorescent material is a phosphor
(51)
(52)
having the formula (LulrxwrbYxGdy)3(All_ZGaZ)5Ol2:CeaPrb
Int. Cl.
H01] 1/62 H01J 63/04
Wherein 0
