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1. (KR1020080026529) PACKAGE DESIGN FOR PRODUCING WHITE LIGHT WITH SHORT-WAVELENGTH LEDS AND DOWN-CONVERSION MATERIALS

Office : Republic of Korea
Application Number: 1020077018031 Application Date: 06.08.2007
Publication Number: 1020080026529 Publication Date: 25.03.2008
Publication Kind : A
IPC:
H01L 33/00
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
33
Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
CPC:
H01L 33/504
B82Y 10/00
C09K 11/595
C09K 11/642
C09K 11/7734
C09K 11/7774
C09K 11/7777
C09K 11/7792
H05B 33/14
Y02B 20/181
Applicants: RENSSELAER POLYTECHNIC INSTITUTE
렌슬러 폴리테크닉 인스티튜트
Inventors: NARENDRAN NADARAJAH
나렌드란, 나다라자
GU YIMIN
구, 위민
Agents: 남상선
Priority Data: 60/693,170 23.06.2005 US
60/698,591 12.07.2005 US
Title: (EN) PACKAGE DESIGN FOR PRODUCING WHITE LIGHT WITH SHORT-WAVELENGTH LEDS AND DOWN-CONVERSION MATERIALS
(KO) 단파장 LED들 및 다운-컨버젼 물질들로 백색광을생성하기 위한 패키지 설계
Abstract: front page image
(EN) A broad bandwidth light source including: a solid state light emitting device (102) that generates short wavelength light; and quantum dot material (104) and phosphor material (106) that are each irradiated by some of the short wavelength light. The short wavelength light has a spectrum with a first peak wavelength shorter than about 500nm. The quantum dot material (104) absorbs some of the short wavelength light and reemits it as long wavelength light having a spectrum with a second peak wavelength longer than about 600nm. The phosphor material (106) absorbs some of the short wavelength light and reemits it as mid wavelength light having a spectrum with a peak wavelength between the first and second peak wavelengths. The light source is configured such that some of each light (short, mid, and long wavelength) is emitted coincidently as a light having a chromaticity value near the blackbody locus and a color rendering index greater than 80. ©KIPO&WIPO 2008
(KO) 광대역 광원으로서, 단파장 광을 생성하는 고체상 발광 소자(102); 단파장 광의 일부에 의해 각각 조사되는 양자점 물질(104) 및 인광 물질(106)을 포함한다. 단파장 광은 약 500nm보다 짧은 제1 피크 파장을 갖는 스펙트럼을 갖는다. 양자점 물질(104)은 단파장 광의 일부를 흡수하여, 그것을 약 600nm보다 긴 제2 피크 파장을 갖는 스펙트럼을 갖는 장파장 광으로서 재방출한다. 인광 물질(106)은 단파장 광의 일부를 흡수하여, 그것을 제1 피크 파장과 제2 피크 파장 사이의 피크 파장을 갖는 스펙트럼을 갖는 중간 파장 광으로서 재방출한다. 광원은 각각의 광(단파장, 중간 파장 및 장파장)의 일부가 동시에 흑체 궤적 근처의 색도값 및 80보다 큰 연색 평가수를 갖는 광으로서 동시에 재방출되도록 구성된다.
Also published as:
EP1894257JP2008544553US20080105887CN101138104CA2597697AU2006262152
WO/2007/002234