EP4269870A3 - Flächenleuchte mit rückseitiger (sekundär-)beleuchtung - Google Patents

Flächenleuchte mit rückseitiger (sekundär-)beleuchtung Download PDF

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Publication number
EP4269870A3
EP4269870A3 EP23170286.1A EP23170286A EP4269870A3 EP 4269870 A3 EP4269870 A3 EP 4269870A3 EP 23170286 A EP23170286 A EP 23170286A EP 4269870 A3 EP4269870 A3 EP 4269870A3
Authority
EP
European Patent Office
Prior art keywords
light
circuit board
led circuit
leds
emitting element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23170286.1A
Other languages
English (en)
French (fr)
Other versions
EP4269870A2 (de
Inventor
Raymond Keane
David Round
Robert Hodgson
Peter Archer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thorn Lighting Ltd
Original Assignee
Thorn Lighting Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thorn Lighting Ltd filed Critical Thorn Lighting Ltd
Publication of EP4269870A2 publication Critical patent/EP4269870A2/de
Publication of EP4269870A3 publication Critical patent/EP4269870A3/de
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/004—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by deformation of parts or snap action mountings, e.g. using clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/18—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2109/00—Light sources with light-generating elements disposed on transparent or translucent supports or substrates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Die vorliegende Erfindung betrifft eine Flächenleuchte (1) aufweisend eine flächige LED-Leiterplatte (2) mit einer flächigen Vorderseite (20), auf der eine Vielzahl von LEDs (23) vorgesehen ist, und einer von der Vorderseite (20) abgewandten flächigen Rückseite (21), wobei die Vorderseite (20) und die Rückseite (21) über eine umlaufende Stirnseite (22) miteinander verbunden sind, ein vorderes Lichtabgabeelement (3), welches eine zu der Vorderseite (20) beabstandet vorgesehene vordere Lichtabgabefläche (30) aufweist, die als Diffusor ausgebildet ist und die mit der LED-Leiterplatte (2) einen Lichtraum (4) derart begrenzt, so dass von den LEDs (23) in den Lichtraum (4) abgegebenes Licht wenigstens teilweise direkt über die vordere Lichtabgabefläche (30) nach außen abgegeben wird, und ein hinteres Lichtabgabeelement (5), welches eine hintere Lichtabgabefläche (50) aufweist, die der Rückseite (21) gegenüberliegend auf der dem vorderen Lichtabgabeelement (3) abgewandten Seite der LED-Leiterplatte (2) vorgesehen ist, wobei die LED-Leiterplatte (2) die Vorderseite (20) mit der Rückseite (21) verbindende Lichtdurchtrittsöffnungen (7) derart aufweist, so dass von der vorderen Lichtabgabefläche (30) zum Lichtraum (4) hin reflektiertes Licht der LEDs (23) über die Lichtdurchtrittsöffnungen (7) und die hintere Lichtabgabefläche (50) rückseits der Flächenleuchte (1) nach außen abgegeben wird.
EP23170286.1A 2022-04-27 2023-04-27 Flächenleuchte mit rückseitiger (sekundär-)beleuchtung Pending EP4269870A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202022102261.5U DE202022102261U1 (de) 2022-04-27 2022-04-27 Flächenleuchte mit rückseitiger (Sekundär-)Beleuchtung

Publications (2)

Publication Number Publication Date
EP4269870A2 EP4269870A2 (de) 2023-11-01
EP4269870A3 true EP4269870A3 (de) 2024-01-03

Family

ID=86271925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23170286.1A Pending EP4269870A3 (de) 2022-04-27 2023-04-27 Flächenleuchte mit rückseitiger (sekundär-)beleuchtung

Country Status (2)

Country Link
EP (1) EP4269870A3 (de)
DE (1) DE202022102261U1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110176303A1 (en) * 2010-01-18 2011-07-21 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Double-sided led lamp
EP2985510A1 (de) * 2014-07-24 2016-02-17 Koninklijke Philips N.V. Lampe und leuchte
US20160348852A1 (en) * 2014-01-30 2016-12-01 Philips Lighting Holding B.V. Lighting device
WO2017053408A1 (en) * 2015-09-21 2017-03-30 Dell'ario Dale Lighting device
US20180252369A1 (en) * 2017-03-02 2018-09-06 Opple Lighting Co., Ltd. Led lighting device
US20190041030A1 (en) * 2017-08-01 2019-02-07 Kenall Manufacturing Company Luminaire with uplighting and downlighting capabilities
WO2021018291A1 (en) * 2019-07-31 2021-02-04 Jiaxing Super Lighting Electric Appliance Co., Ltd Led lamp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH710609A1 (de) 2015-01-14 2016-07-15 Regent Beleuchtungskörper Ag Leuchte mit Primär- und Sekundärabstrahlungsrichtung.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110176303A1 (en) * 2010-01-18 2011-07-21 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Double-sided led lamp
US20160348852A1 (en) * 2014-01-30 2016-12-01 Philips Lighting Holding B.V. Lighting device
EP2985510A1 (de) * 2014-07-24 2016-02-17 Koninklijke Philips N.V. Lampe und leuchte
WO2017053408A1 (en) * 2015-09-21 2017-03-30 Dell'ario Dale Lighting device
US20180252369A1 (en) * 2017-03-02 2018-09-06 Opple Lighting Co., Ltd. Led lighting device
US20190041030A1 (en) * 2017-08-01 2019-02-07 Kenall Manufacturing Company Luminaire with uplighting and downlighting capabilities
WO2021018291A1 (en) * 2019-07-31 2021-02-04 Jiaxing Super Lighting Electric Appliance Co., Ltd Led lamp

Also Published As

Publication number Publication date
EP4269870A2 (de) 2023-11-01
DE202022102261U1 (de) 2023-08-07

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