Invention Grant
US07750359B2 Package design for producing white light with short-wavelength LEDS and down-conversion materials
有权
用于生产具有短波长LEDS和下转换材料的白光的封装设计
- Patent Title: Package design for producing white light with short-wavelength LEDS and down-conversion materials
- Patent Title (中): 用于生产具有短波长LEDS和下转换材料的白光的封装设计
-
Application No.: US11795171Application Date: 2006-06-20
-
Publication No.: US07750359B2Publication Date: 2010-07-06
- Inventor: Nadarajah Narendran , Yimin Gu
- Applicant: Nadarajah Narendran , Yimin Gu
- Applicant Address: US NY Troy
- Assignee: Rensselaer Polytechnic Institute
- Current Assignee: Rensselaer Polytechnic Institute
- Current Assignee Address: US NY Troy
- Agency: RatnerPrestia
- International Application: PCT/US2006/024210 WO 20060620
- International Announcement: WO2007/002234 WO 20070104
- Main IPC: H01L33/00
- IPC: H01L33/00

Abstract:
A broad bandwidth light source including: a solid state light emitting device that generates short wavelength light; and quantum dot material and phosphor material 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 500 nm. The quantum dot material 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 600 nm. The phosphor material 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 wavelength. The light source is configured such that some of each light (short, mid, and long wavelength) is emitted coincidentally as a light having a chromaticity value near the blackbody locus and a color rendering index greater than 80.
Public/Granted literature
- US20080105887A1 Package Design for Producing White Light With Short-Wavelength Leds and Down-Conversion Materials Public/Granted day:2008-05-08
Information query
IPC分类: