Invention Application
- Patent Title: WHITE LIGHT EMITTING DEVICE
- Patent Title (中): 白光发光装置
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Application No.: US14697939Application Date: 2015-04-28
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Publication No.: US20160120003A1Publication Date: 2016-04-28
- Inventor: YI-HSUAN CHEN , SHIH-CHANG HSU
- Applicant: LITE-ON OPTO TECHNOLOGY (CHANGZHOU) CO., LTD. , LITE-ON TECHNOLOGY CORP.
- Priority: CN201410583957.3 20141027
- Main IPC: H05B33/12
- IPC: H05B33/12 ; H05B33/06

Abstract:
A white light emitting device includes an LED chip capable of emitting light with a peak wavelength of 390 to 430 nm, and a wavelength conversion layer including first, second and third fluorescent materials. The first fluorescent material is capable of being excited to emit light with a peak wavelength of 450 to 470 nm. The second fluorescent material is capable of being excited to emit light with a peak wavelength of 450 to 470 nm. The third fluorescent material is capable of being excited to emit light with a peak wavelength of 630 to 650 nm. Light emitted by the white light emitting device has a color temperature below 5000 K, and a general color rendering index value (Ra) and special color rendering index values (R9-R15) all greater than 90.
Public/Granted literature
- US09491831B2 White light emitting device Public/Granted day:2016-11-08
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