Invention Grant
- Patent Title: Multi-wavelength white light-emitting structure
- Patent Title (中): 多波长白光发光结构
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Application No.: US12379258Application Date: 2009-02-18
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Publication No.: US07804162B2Publication Date: 2010-09-28
- Inventor: Bily Wang , Jonnie Chuang , Chuan-Fa Lin
- Applicant: Bily Wang , Jonnie Chuang , Chuan-Fa Lin
- Applicant Address: TW Hsin Chu
- Assignee: Harvatek Corporation
- Current Assignee: Harvatek Corporation
- Current Assignee Address: TW Hsin Chu
- Agency: Rosenberg, Klein & Lee
- Main IPC: H01L23/02
- IPC: H01L23/02 ; H01J1/62 ; H01J63/04 ; F21V9/00

Abstract:
A multi-wavelength white light-emitting structure uses a UV light emitting diode chip and a blue light emitting diode chip to excite a red phosphor and a green phosphor and generates a white light-emitting structure having good color rendering. The multi-wavelength white light-emitting structure uses a UV light emitting diode chip that emits light having a wavelength of between 350˜430 nm to excite a red phosphor to emit red light having a wavelength of between 600˜700 nm. The present invention then uses a blue light emitting diode chip that emits light having a wavelength between of 400˜500 nm to emit blue light and uses the blue light emitting diode chip to excite a green phosphor to emit green light having a wavelength of between 490˜560 nm. Mixing the red light, the blue light and the green light forms a white light.
Public/Granted literature
- US20090152574A1 Multi-wavelength white light-emitting structure Public/Granted day:2009-06-18
Information query
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