公开(公告)号：US20250113698A1

公开(公告)日：2025-04-03

申请号：US18963147

申请日：2024-11-27

Applicant: Lumileds LLC

Inventor： Matthew ROZIN ,  Noad Shapiro

IPC: H10H29/80 ,  H10H29/14 ,  H10H29/851

Abstract: A light engine with distinct light sources sharing at least one optic may employ scattering particles to change the illuminance line profiles of one or more of the light sources so that they are more uniformly mixed in the far-field. The scattering particles may be integrated into phosphor layers of specific light sources or may be disposed in a separate layer. The scattering particles may be tunable based on the particular characteristics of the light source, such as their spectral characteristics or their chemical mixing characteristics.

公开(公告)号：US12027566B2

公开(公告)日：2024-07-02

申请号：US17859361

申请日：2022-07-07

Applicant: Lumileds LLC

Inventor： Grigoriy Basin ,  Kentaro Shimizu ,  Brendan Moran ,  Emma Dohner ,  Noad Shapiro ,  Marcel Bohmer

IPC: H01L27/15

CPC classification number: H01L27/15 ,  H01L27/156

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 or air voids. The pigments, light scattering particles, or air voids may be homogeneously distributed in the reflector. Alternatively the side reflector may be layered, with the pigments, light scattering particles, or air voids inhomogeneously distributed in the reflector. The side reflector can include phosphor particles.

公开(公告)号：US11411043B2

公开(公告)日：2022-08-09

申请号：US17077928

申请日：2020-10-22

Applicant: Lumileds LLC

Inventor： Grigoriy Basin ,  Kentaro Shimizu ,  Brendan Moran ,  Emma Dohner ,  Noad Shapiro ,  Marcel Bohmer

IPC: H01L27/15

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 or air voids. The pigments, light scattering particles, or air voids may be homogeneously distributed in the reflector. Alternatively the side reflector may be layered, with the pigments, light scattering particles, or air voids inhomogeneously distributed in the reflector. The side reflector can include phosphor particles.

公开(公告)号：US11302849B2

公开(公告)日：2022-04-12

申请号：US16664617

申请日：2019-10-25

Applicant: Lumileds LLC

Inventor： Grigoriy Basin ,  Kentaro Shimizu ,  Brendan Moran ,  Emma Dohner ,  Noad Shapiro ,  Marcel Bohmer

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.