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1. WO2022008409 - LASER PHOSPHOR BASED PIXELATED LIGHT SOURCE

Publication Number WO/2022/008409
Publication Date 13.01.2022
International Application No. PCT/EP2021/068452
International Filing Date 05.07.2021
IPC
F21K 9/64 2016.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
9Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes or lasers
60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
64using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
F21V 9/30 2018.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
9Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
30Elements containing photoluminescent material distinct from or spaced from the light source
F21V 7/06 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
7Reflectors for light sources
04Optical design
06with parabolic curvature
F21V 7/08 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
7Reflectors for light sources
04Optical design
08with elliptical curvature
H01S 5/00 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
H01S 5/40 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
40Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02-H01S5/30128
Applicants
  • SIGNIFY HOLDING B.V. [NL]/[NL]
Inventors
  • CORNELISSEN, Hugo, Johan
  • VAN BOMMEL, Ties
Agents
  • MALLENS, Erik, Petrus, Johannes
  • VERWEIJ, Petronella, Danielle
Priority Data
20184462.807.07.2020EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) LASER PHOSPHOR BASED PIXELATED LIGHT SOURCE
(FR) SOURCE DE LUMIÈRE PIXELISÉE À BASE DE PHOSPHORE LASER
Abstract
(EN) The invention provides a light generating device (1000) comprising (i) n laser light sources (10), (ii) focusing optics (20), and (iii) a luminescent body (200), wherein: (A) the n laser light sources (10) are configured to generate laser light source light (11); wherein the focusing optics (20) are configured to focus the laser light source light (11) into a focused beam (21) of laser light source light (11); wherein n≥2; (B) the luminescent body (200) comprises a luminescent material (210), wherein the luminescent body (200) is configured in a light receiving relationship with the n laser light sources (10), wherein the luminescent material (210) is configured to convert at least part of the laser light source light (11) into luminescent material light (211); (C) the n laser light sources (10) and focusing optics (20) are configured to provide in an operational mode light spots (300) of laser light source light (11) on the luminescent body (200); wherein k sets of light spots (300) each have an individually selected number of m light spots (300), wherein two or more of the light spots (300) within each set have a partial overlap, wherein 2≤m≤n and 1≤k
(FR) La présente invention concerne un dispositif de génération de lumière (1000) comprenant (i) n sources de lumière laser (10), (ii) une optique de focalisation (20) et (iii) un corps luminescent (200), dans lequel : (A) les n sources de lumière laser (10) sont conçues pour générer une lumière de source de lumière laser (11) ; l'optique de focalisation (20) est conçue pour focaliser la lumière de source de lumière laser (11) en un faisceau focalisé (21) de lumière de source de lumière laser (11) ; où n ≥ 2 ; (B) le corps luminescent (200) comprend un matériau luminescent (210), le corps luminescent (200) étant conçu dans une relation de réception de lumière avec les n sources de lumière laser (10), le matériau luminescent (210) étant conçu pour convertir au moins une partie de la lumière de source de lumière laser (11) en une lumière de matériau luminescent (211) ; (C) les n sources de lumière laser (10) et l'optique de focalisation (20) sont conçues pour fournir, dans un mode de fonctionnement, des points lumineux (300) de lumière de source de lumière laser (11) sur le corps luminescent (200) ; k ensembles de points lumineux (300), chacun ayant un nombre sélectionné individuellement de m points lumineux (300), au moins deux des points lumineux (300) dans chaque ensemble ayant un chevauchement partiel, où 2≤m≤n et 1≤k<n ; et (D) une première zone de point (310) est définie par 10-100 % de l'intensité maximale dans le point lumineux (300) où, pour au moins un des points lumineux (300) dans au moins l'un des k ensembles, s'applique dans la plage de 5 à 80 % de sa première zone de point (310), chevauche au moins une autre première zone de point (310) à l'intérieur de l'ensemble.
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