Invention Grant
- Patent Title: Pigmented and scattering particles in side coating materials for LED applications
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Application No.: US16664617Application Date: 2019-10-25
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Publication No.: US11302849B2Publication Date: 2022-04-12
- Inventor: Grigoriy Basin , Kentaro Shimizu , Brendan Moran , Emma Dohner , Noad Shapiro , Marcel Bohmer
- Applicant: Lumileds LLC
- Applicant Address: US CA San Jose
- Assignee: Lumileds LLC
- Current Assignee: Lumileds LLC
- Current Assignee Address: US CA San Jose
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L33/46 ; F21V7/30 ; F21V7/24

Abstract:
Phosphor-converted LED side reflectors disclosed herein comprise pigments that are photochemically stable under illumination by light from the pcLED. The pigments absorb light in at least a portion of the spectrum of light emitted by the first phosphor converted LED. The side reflector may also comprise light scattering particles and/or air voids. The pigments, light scattering particles and/or air voids may be homogeneously distributed in the reflector. Alternatively the side reflector may be layered, with the pigments, light scattering particles and/or air voids inhomogeneously distributed in the reflector. The side reflector may comprise phosphor particles.
Public/Granted literature
- US20210126166A1 PIGMENTED AND SCATTERING PARTICLES IN SIDE COATING MATERIALS FOR LED APPLICATIONS Public/Granted day:2021-04-29
Information query
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