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1. WO2021058373 - OPTICAL ELEMENT

Publication Number WO/2021/058373
Publication Date 01.04.2021
International Application No. PCT/EP2020/075991
International Filing Date 17.09.2020
IPC
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 5/00 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
F21V 8/00 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
8Use of light guides, e.g. fibre optic devices, in lighting devices or systems
G02B 5/02 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
G02B 6/00 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
F21S 8/04 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
04intended only for mounting on a ceiling or like overhead structure
CPC
F21S 8/04
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
04intended only for mounting on a ceiling or the like overhead structures
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 3/062
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
06characterised by the material
062the material being plastics
F21V 3/0625
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
06characterised by the material
062the material being plastics
0625the material diffusing light, e.g. translucent plastics
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
G02B 5/0221
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0205characterised by the diffusing properties
021the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
0221the surface having an irregular structure
Applicants
  • ZUMTOBEL LIGHTING GMBH [AT]/[AT]
Inventors
  • GASSNER, Patrik
  • KELLER, Katharina
  • SCHWAIGHOFER, Andreas
  • SCHWÄRZLER, Erich
Agents
  • BARTH, Alexander
  • SZÜCS, Anna
Priority Data
10 2019 125 640.224.09.2019DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) OPTISCHES ELEMENT
(EN) OPTICAL ELEMENT
(FR) ÉLÉMENT OPTIQUE
Abstract
(DE)
Die vorliegende Erfindung betrifft ein optisches Element (1) für eine flächige Leuchte, aufweisend eine flächige Lichteinkopplungsseite zum Einleiten von Licht in das optische Element (1) und eine der flächigen Lichteinkopplungsseite gegenüberliegende flächige Lichtauskopplungsseite (2) zur Abgabe des über die Lichteinkopplungsseite eingeleiteten Lichts. Die Lichtauskopplungsseite (2) weist auf: eine erste Zone (3) zur diffus streuenden Lichtabgabe eines ersten Teils des über die Lichteinkopplungsseite eingeleiteten Lichts, und mehrere in der ersten Zone (3) vorgesehene zweite Zonen (4) zur Lichtabgabe eines zweiten Teils des über die Lichteinkopplungsseite eingeleiteten Lichts derart, dass das über die zweiten Zonen (4) abgegebene Licht wenigstens teilweise definiert gerichtet ist. Die Erfindung betrifft ferner eine flächige Leuchte aufweisend ein solches optisches Element (1 ).
(EN)
The present invention relates to an optical element (1) for a planar luminaire, comprising a planar light incoupling side for introducing light into the optical element (1) and a planar light outcoupling side (2) for emitting the light introduced via the light incoupling side, the planar light outcoupling side being opposite the planar light incoupling side. The light outcoupling side (2) has: a first zone (3) for the diffusely scattered light emission of a first part of the light introduced via the light incoupling side; and a plurality of second zones (4), provided in the first zone (3), for such light emission of a second part of the light introduced via the light incoupling side that the light emitted by means of the second zones (4) at least partially has defined directionality. The invention further relates to a planar luminaire having an optical element (1) of this type.
(FR)
La présente invention concerne un élément optique (1) pour un luminaire plan, comprenant un côté d'entrée de lumière plan pour introduire de la lumière dans l'élément optique (1) et un côté de sortie de lumière plan (2) pour émettre la lumière introduite par l'intermédiaire du côté d'entrée de lumière, le côté de sortie de lumière plan étant en regard du côté d'entrée de lumière plan. Le côté de sortie de lumière (2) comporte : une première zone (3) pour l'émission de lumière dispersée de manière diffuse d'une première partie de la lumière introduite par l'intermédiaire du côté d'entrée de lumière ; et une pluralité de secondes zones (4), disposées dans la première zone (3), pour une telle émission de lumière d'une seconde partie de la lumière introduite par l'intermédiaire du côté d'entrée de lumière que la lumière émise au moyen des secondes zones (4) a au moins partiellement une directivité définie. L'invention concerne en outre un luminaire plan ayant un élément optique (1) de ce type.
Also published as
Latest bibliographic data on file with the International Bureau