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1. WO2020193476 - A LIGHT EMITTING DEVICE

Publication Number WO/2020/193476
Publication Date 01.10.2020
International Application No. PCT/EP2020/057992
International Filing Date 23.03.2020
IPC
F21S 8/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
8Lighting devices intended for fixed installation
02of recess-mounted type, e.g. downlighters
F21V 7/00 2006.01
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
F21V 3/04 2018.01
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
3Globes; Bowls; Cover glasses
04characterised by materials, surface treatments or coatings
F21V 5/04 2006.01
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
5Refractors for light sources
04of lens shape
F21V 5/00 2018.01
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
5Refractors for light sources
F21W 121/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V124
121Use or application of lighting devices or systems for decorative purposes, not provided for in groups F21W102/-F21W107/154
CPC
F21S 8/026
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
8Lighting devices intended for fixed installation
02of recess-mounted type, e.g. downlighters
026intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
F21V 3/049
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
3Globes; Bowls; Cover glasses
04characterised by materials, surface treatments or coatings
049Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
F21V 5/002
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
5Refractors for light sources
002using microoptical elements for redirecting or diffusing light
F21V 5/04
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
5Refractors for light sources
04of lens shape
F21V 7/0091
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
0091using total internal reflection
F21W 2121/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
2121Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00F21W2107/00
Applicants
  • SIGNIFY HOLDING B.V. [NL]/[NL]
Inventors
  • VISSENBERG, Michel, Cornelis, Josephus, Marie
  • ANSEMS, Johannes, Petrus, Maria
  • PERZ, Malgorzata
  • SEKULOVSKI, Dragan
Agents
  • VAN DIJKEN, Albert
  • VERWEIJ, Petronella, Danielle
Priority Data
19165073.826.03.2019EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A LIGHT EMITTING DEVICE
(FR) DISPOSITIF ÉLECTROLUMINESCENT
Abstract
(EN)
A light emitting device (1) comprising a light exit surface (41) and at least one light source (5) configured to, in operation, emit light, wherein the light emitting device is configured to provide a light output at the light exit surface (41), the light output comprising at least one peak intensity in a first direction (A) and an intensity cut-off in at least one second direction (B), where the intensity in the at least one second direction (B) is less than 10 % of the peak intensity in the first direction (A), and wherein the light emitting device (1) comprises a plurality of sparkling elements (6) arranged in the optical path of at least a part of the light emitted by the at least one light source (5), at least two sparkling elements of the plurality of sparkling elements (6) being configured and arranged to be visible when observed from a viewing position corresponding to the at least one second direction (B).
(FR)
La présente invention concerne un dispositif électroluminescent (1) comprenant une surface de sortie de lumière (41) et au moins une source de lumière (5) conçue pour, en fonctionnement, émettre de la lumière, le dispositif électroluminescent étant conçu pour fournir une sortie de lumière au niveau de la surface de sortie de lumière (41), la sortie de lumière comprenant au moins une intensité de pointe dans une première direction (A) et une coupure d'intensité dans au moins une seconde direction (B), l'intensité dans l'au moins une seconde direction (B) étant inférieure à 10 % de l'intensité de pointe dans la première direction (A), et le dispositif électroluminescent (1) comprenant une pluralité d'éléments étincelants (6) disposés dans le trajet optique d'au moins une partie de la lumière émise par l'au moins une source de lumière (5), au moins deux éléments étincelants de la pluralité d'éléments étincelants (6) étant conçus et agencés pour être visibles lorsqu'ils sont observés à partir d'une position de visualisation correspondant à l'au moins une seconde direction (B).
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