Invention Grant
- Patent Title: High gamut index solid-state white light emitting devices
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Application No.: US16775172Application Date: 2020-01-28
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Publication No.: US11054090B2Publication Date: 2021-07-06
- Inventor: Xianglong Yuan , Yi-Qun Li
- Applicant: Intematix Corporation
- Applicant Address: US CA Fremont
- Assignee: Intematix Corporation
- Current Assignee: Intematix Corporation
- Current Assignee Address: US CA Fremont
- Agency: CrossPond Law
- Main IPC: F21K9/64
- IPC: F21K9/64 ; H01L25/075 ; F21Y105/12 ; H01L33/54 ; H01L33/62 ; F21Y115/10

Abstract:
A white light emitting device includes a solid-state excitation source operable to generate excitation light having a dominant wavelength ranging from 440 nm to 455 nm; a first photoluminescence material which generates light having a peak emission wavelength ranging from 500 nm to 530 nm; and a second photoluminescence material which generates light having a peak emission wavelength ranging from 640 nm to 690 nm, where the device is operable to generate white light with an IEC TM-30 Gamut Index Rg ranging from 105 to 115. The device can be operable to generate white light having an IEC TM-30 Fidelity Index Rf which ranges from 85 to 95 and a sum of Gamut Index Rg and fidelity index Rf is greater than or equal to 195 and less than or equal to 200.
Public/Granted literature
- US20200240596A1 High Gamut Index Solid-State White Light Emitting Devices Public/Granted day:2020-07-30
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