Invention Grant
US09093617B2 AC light emitting device with long-persistent phosphor and light emitting device module having the same
有权
具有长持续荧光体和发光器件模块的AC发光器件具有相同的功能
- Patent Title: AC light emitting device with long-persistent phosphor and light emitting device module having the same
- Patent Title (中): 具有长持续荧光体和发光器件模块的AC发光器件具有相同的功能
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Application No.: US14295134Application Date: 2014-06-03
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Publication No.: US09093617B2Publication Date: 2015-07-28
- Inventor: Chung Hoon Lee , Yeo Jin Yoon , Dae Won Kim , Dae Sung Cho , Kyung Hee Ye
- Applicant: SEOUL VIOSYS CO., LTD.
- Applicant Address: KR Ansan-si
- Assignee: Seoul Viosys Co., Ltd.
- Current Assignee: Seoul Viosys Co., Ltd.
- Current Assignee Address: KR Ansan-si
- Agency: H.C. Park & Associates, PLC
- Priority: KR10-2008-0102837 20081021; KR10-2008-0108172 20081103
- Main IPC: H05B33/14
- IPC: H05B33/14 ; H01L33/50 ; F21K99/00 ; H05B33/08 ; F21V23/06 ; H01L25/075 ; F21Y113/00
Abstract:
An AC light emitting device includes a first light emitting diode chip and a second light emitting diode chip, each of which has a plurality of light emitting cells on a single substrate. A first long-persistent phosphor is positioned on the first light emitting diode chip to perform wavelength conversion for a portion of light emitted from the first light emitting diode chip, and a second long-persistent phosphor is positioned on the second light emitting diode chip to perform wavelength conversion for a portion of light emitted from the second light emitting diode chip. The afterglow luminescence period of the second long-persistent phosphor is different from that of the first long-persistent phosphor.
Public/Granted literature
- US20140328056A1 AC LIGHT EMITTING DEVICE WITH LONG-PERSISTENT PHOSPHOR AND LIGHT EMITTING DEVICE MODULE HAVING THE SAME Public/Granted day:2014-11-06
Information query
