Invention Grant
- Patent Title: Light emitting device
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Application No.: US15848695Application Date: 2017-12-20
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Publication No.: US10014449B1Publication Date: 2018-07-03
- Inventor: Takeshi Morikawa
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan-shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-shi
- Priority: JP2016-248524 20161221
- Main IPC: H01J1/62
- IPC: H01J1/62 ; H01L33/50 ; H01L25/075 ; G02F1/1335 ; H01L33/48 ; F21V8/00 ; C09K11/08 ; H01L33/56 ; H05B33/04 ; F21Y115/10

Abstract:
A light emitting device includes a first light emitting element configured to emit red light, a second light emitting element configured to emit green light, a third light emitting element configured to emit blue light, and a translucent member covering the first, second and third light emitting elements. The translucent member includes a wavelength conversion substance configured to absorb the blue light of the third light emitting element and to emit light. The first light emitting element, the second light emitting element, and the third light emitting element are connected in series. At the same forward current value, a radiant flux of the third light emitting element is greater than a radiant flux of the first light emitting element and a radiant flux of the second light emitting element. The wavelength conversion substance includes a phosphor material configured to emit light having a color between green and red.
Public/Granted literature
- US20180175255A1 LIGHT EMITTING DEVICE Public/Granted day:2018-06-21
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