Invention Grant
- Patent Title: High-intensity light source with high CRI
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Application No.: US17760833Application Date: 2020-09-14
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Publication No.: US12085239B2Publication Date: 2024-09-10
- Inventor: Rifat Ata Mustafa Hikmet , Ties Van Bommel
- Applicant: SIGNIFY HOLDING B.V.
- Applicant Address: NL Eindhoven
- Assignee: SIGNIFY HOLDING, B.V.
- Current Assignee: SIGNIFY HOLDING, B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP 197971 2019.09.18
- International Application: PCT/EP2020/075608 2020.09.14
- International Announcement: WO2021/052900A 2021.03.25
- Date entered country: 2022-03-16
- Main IPC: F21K9/64
- IPC: F21K9/64 ; H01L33/50 ; H01S5/00 ; F21Y113/10

Abstract:
The invention provides a light generating device (1000) configured to generate device light (1001), wherein the light generating device (1000) comprises (i) a first light source (110) configured to generate blue first light source light (111), wherein the first light source (110) is a first laser light source (10), (ii) a first luminescent material (210) configured to convert part of the blue first light source light (111) into first luminescent material light (211) having an emission band having wavelengths in one or more of the green and yellow, (iii) an optical filter (410) configured to optically filter the first luminescent material light (211) into optically filtered first luminescent material light (213), whereby the optically filtered first luminescent material light (213) is red-shifted relative to the first luminescent material light (211), and (iv) a second light source (120) configured to generate red second light source light (121), wherein the second light source (120) comprises a second laser light source (20); wherein in one or more operational modes of the light generating device (1000) the light generating device (1000) is configured to generate white device light (1001) comprising the first light source light (111), the optically filtered first luminescent material light (213), and the second light source light (121).
Public/Granted literature
- US20220341550A1 HIGH-INTENSITY LIGHT SOURCE WITH HIGH CRI Public/Granted day:2022-10-27
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