Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (AU2006262152) Package design for producing white light with short-wavelength leds and down-conversion materials

Office : Australia
Application Number: 2006262152 Application Date: 20.06.2006
Publication Number: 2006262152 Publication Date: 16.08.2007
Publication Kind : B2
Prior PCT appl.: Application Number:US2006024210 ; Publication Number: Click to see the data
IPC:
H01L 33/50
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
48
characterised by the semiconductor body packages
50
Wavelength conversion elements
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
Inventors:
Agents: Pizzeys Patent and Trade Mark Attorneys Pty Ltd
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
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.
Also published as:
KR1020080026529EP1894257JP2008544553US20080105887CN101138104CA2597697
WO/2007/002234