EP2642470A3 - Panel-shaped light conducting element and light with a light conducting element - Google Patents

Panel-shaped light conducting element and light with a light conducting element Download PDF

Info

Publication number
EP2642470A3
EP2642470A3 EP13159956.5A EP13159956A EP2642470A3 EP 2642470 A3 EP2642470 A3 EP 2642470A3 EP 13159956 A EP13159956 A EP 13159956A EP 2642470 A3 EP2642470 A3 EP 2642470A3
Authority
EP
European Patent Office
Prior art keywords
light
guiding element
conducting element
wedge
light conducting
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.)
Granted
Application number
EP13159956.5A
Other languages
German (de)
French (fr)
Other versions
EP2642470B1 (en
EP2642470A2 (en
Inventor
Andreas Schwaighofer
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2642470A2 publication Critical patent/EP2642470A2/en
Publication of EP2642470A3 publication Critical patent/EP2642470A3/en
Application granted granted Critical
Publication of EP2642470B1 publication Critical patent/EP2642470B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • G08B7/062—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources indicating emergency exits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F2013/05—Constructional details indicating exit way or orientation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

Bei einer Leuchte (1) mit einer Lichtquelle (50) sowie einem plattenförmigen Lichtleitelement (10) ist die Lichtquelle (50) an einer eine Lichteintrittsfläche (11) bildenden Schmalseite des Lichtleitelements (10) angeordnet und das Lichtleitelement (10) dazu ausgebildet, über die Lichteintrittsfläche (11) eingekoppeltes Licht über eine zur Lichteintrittsfläche (11) im Wesentlichen senkrecht angeordnete Lichtaustrittsfläche abzustrahlen. Das Lichtleitelement (10) ist an der der Lichtaustrittsfläche gegenüberliegenden Seite zumindest teilweise mit quer zur Lichtleitrichtung, nebeneinander liegenden keilartigen Erhebungen oder Vertiefungen profiliert, wobei jede Erhebung bzw. Vertiefung - aus Richtung der Lichteintrittsfläche (11) gesehen - einen sich linear erweiternden Keilbereich sowie einen sich an den Keilbereich anschließenden kreissegmentartigen Bereich aufweist.

Figure imgaf001
In a luminaire (1) having a light source (50) and a plate-shaped light-guiding element (10), the light source (50) is arranged on a narrow side of the light-guiding element (10) forming a light-entry surface (11) and the light-guiding element (10) is designed to overlay the light entry surface (11) emitted light via a light entrance surface (11) arranged substantially vertically arranged light exit surface. The light-guiding element (10) is profiled on the side opposite the light exit surface at least partially with wedge-like elevations or recesses lying transversely to the light guide direction, wherein each elevation or depression - seen from the direction of the light entry surface (11) - has a wedge region extending linearly and a wedge region extending linearly having at the wedge region subsequent circular segment-like area.
Figure imgaf001
EP13159956.5A 2012-03-20 2013-03-19 Panel-shaped light conducting element and light with a light conducting element Active EP2642470B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012100991U DE202012100991U1 (en) 2012-03-20 2012-03-20 Plate-shaped light guide and luminaire with light guide

Publications (3)

Publication Number Publication Date
EP2642470A2 EP2642470A2 (en) 2013-09-25
EP2642470A3 true EP2642470A3 (en) 2014-01-01
EP2642470B1 EP2642470B1 (en) 2019-02-06

Family

ID=47891535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13159956.5A Active EP2642470B1 (en) 2012-03-20 2013-03-19 Panel-shaped light conducting element and light with a light conducting element

Country Status (2)

Country Link
EP (1) EP2642470B1 (en)
DE (1) DE202012100991U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013226970B4 (en) * 2013-12-20 2023-05-25 Zumtobel Lighting Gmbh Arrangement for light emission
DE102015211312A1 (en) 2015-06-19 2016-12-22 Tomislav Kuzman Lighting element, in particular for use in the aerospace industry
DE202018102150U1 (en) 2018-04-18 2018-05-30 Haas Design Gmbh Illuminable presentation or support plate for a fire cell

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5980054A (en) * 1996-05-09 1999-11-09 Matsushita Electric Industrial Co., Ltd. Panel-form illuminating system
DE20116092U1 (en) * 2001-08-06 2002-12-19 Zumtobel Staff Gmbh Luminaire with a luminaire body made of light-conducting material
DE102005046538A1 (en) * 2005-09-28 2007-05-03 Hella Kgaa Hueck & Co. Interior light for motor vehicle, has light conductor, where angle of inclination is selected so that light beam guided in conductor is deflected to decoupling unit and from there to light outlet surface, so that beam escapes from conductor
US20090180297A1 (en) * 2008-01-11 2009-07-16 Samsung Electronics Co., Ltd. Backlight assembly
US20100091520A1 (en) * 2008-10-15 2010-04-15 Super Liao Light Guide Plate and Backlight Module using the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004056329B4 (en) * 2004-11-22 2009-09-24 Electrolux Home Products Corporation N.V. Elongated light guide and lighting device with such a light guide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5980054A (en) * 1996-05-09 1999-11-09 Matsushita Electric Industrial Co., Ltd. Panel-form illuminating system
DE20116092U1 (en) * 2001-08-06 2002-12-19 Zumtobel Staff Gmbh Luminaire with a luminaire body made of light-conducting material
DE102005046538A1 (en) * 2005-09-28 2007-05-03 Hella Kgaa Hueck & Co. Interior light for motor vehicle, has light conductor, where angle of inclination is selected so that light beam guided in conductor is deflected to decoupling unit and from there to light outlet surface, so that beam escapes from conductor
US20090180297A1 (en) * 2008-01-11 2009-07-16 Samsung Electronics Co., Ltd. Backlight assembly
US20100091520A1 (en) * 2008-10-15 2010-04-15 Super Liao Light Guide Plate and Backlight Module using the same

Also Published As

Publication number Publication date
EP2642470B1 (en) 2019-02-06
EP2642470A2 (en) 2013-09-25
DE202012100991U1 (en) 2013-06-25

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