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EP1338845A2 - Luminaire - Google Patents

Luminaire Download PDF

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Publication number
EP1338845A2
EP1338845A2 EP03007163A EP03007163A EP1338845A2 EP 1338845 A2 EP1338845 A2 EP 1338845A2 EP 03007163 A EP03007163 A EP 03007163A EP 03007163 A EP03007163 A EP 03007163A EP 1338845 A2 EP1338845 A2 EP 1338845A2
Authority
EP
European Patent Office
Prior art keywords
optical element
lamp
microprisms
reflector
light rays
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
EP03007163A
Other languages
German (de)
English (en)
Other versions
EP1338845B1 (fr
EP1338845A3 (fr
Inventor
Günther Dr. Sejkora
Jürg Dipl.-Ing. Zumtobel
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 Staff GmbH
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
Priority claimed from DE19923225A external-priority patent/DE19923225B4/de
Application filed by Zumtobel Staff GmbH, Zumtobel Lighting GmbH Austria filed Critical Zumtobel Staff GmbH
Publication of EP1338845A2 publication Critical patent/EP1338845A2/fr
Publication of EP1338845A3 publication Critical patent/EP1338845A3/fr
Application granted granted Critical
Publication of EP1338845B1 publication Critical patent/EP1338845B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • 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
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • 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
    • F21Y2113/00—Combination of light sources

Definitions

  • the present invention relates to a lamp with an optical element Microprism structure for limiting the exit angle of the light rays from the Luminaire according to the preamble of claim 1.
  • optical elements of the type mentioned above should be achieved that the Angle of exit of light rays from the luminaire is limited, i.e. smaller than one predetermined limit exit angle is to cause glare for the viewer reduce.
  • such an optical element also causes one mechanical protection of the lamp and especially the lamp inside the lamp.
  • Such an optical element is, for example, from the Austrian patent AT-B-403.403 known.
  • the known optical element has its side facing the lamp of the lamp arranged in rows and rows pyramid-like profiles 2, so-called microprisms, on the truncated pyramids are formed from a plate-shaped core 3 and a parallel to the base surface (light exit surface) of the core 3 lying upper boundary surface (Light entry surface).
  • the entire optical element 1 consists entirely of a crystal clear or transparent material.
  • the known lamp 4 has a Lamp 5, such as a fluorescent tube or the like, on the lamp 5 surrounding reflector housing 6 and an optical element 1.
  • the optical element 1 also consists of a plate-shaped core 3 made of transparent material is covered on one side with microprisms 2, which form furrows 7 - starting from their roots - rejuvenate, taking the entirety of the microprism cover surfaces the light entry surface 8 forms.
  • lenses 9 are provided to limit the exit angle to ensure the light rays from the optical element 1 are on the other Side of the core 3, which forms the light exit surface.
  • a lamp with a lamp, a reflector surrounding the lamp and a in the radiation direction in front of the lamp arranged optical element of the above The type described is known, for example, from EP 0 911 577 A2. Also the JP-A-10 106319 describes a similar lamp, in which two are in the direction of radiation optical elements are arranged one behind the other, the Microprismatic structures of these optical elements aligned parallel to each other are.
  • glare control for the viewer ensures the brightness distribution of light across the optical element but not evenly because there are more light rays in the vicinity of the lamp couple optical element as for example in the edge areas of the optical element.
  • the lamp is through the optical element cannot be seen directly through it, but because of the larger one Brightness can at least be guessed at by the viewer.
  • WO 95/12782 In order to achieve a uniform light emission from the lighting arrangement, it is known for example from WO 95/12782, light from a lamp into a side Coupling light guide element, which the light mainly parallel to it Light exit surface transported. Is on the light exit surface of the light guide A micro prism structure is attached, which on the one hand decouples the light enables the light guide and on the other hand the exit angle of the lighting arrangement limited.
  • the WO 95/12782 described lighting arrangement a backlight for Displays or other displays and is only suitable for room lighting to a limited extent.
  • the lamp according to the invention has a total of two optical elements that are the same are constructed and the microprisms each have an elongated structure.
  • the the second optical element is arranged parallel to the first optical element, the microprisms of the second optical element transverse to the microprisms of the first optical element, i.e. the two optical elements with respect to the Direction of extension of their microprisms are rotated 90 ° against each other.
  • Lamp 5 is a preferred embodiment of the invention Lamp shown schematically. The optical used in these lights Elements are shown in Fig. 4.
  • FIG. 3 which is not the subject of the claims, shows a lamp 10 with two elongated Lamps 11, such as fluorescent tubes.
  • the lamps 11 are one enclosed corresponding reflector 12, which has a radiation opening on its underside 13 has.
  • the reflector 12 can either itself as the housing of the lamp serve or arranged in a corresponding (not shown) lamp housing and be attached.
  • an optical one Element 14 used, which is essentially that known in FIG. 1 Element corresponds.
  • the optical element 14 arranged in or in front of the radiation opening 13 serves the purpose of Redirection of light rays entering and exiting this 15 such that their exit angle is limited, i.e. smaller than a predetermined one Limit exit angle is about 60-70 °.
  • the optical element 14 has one plate-shaped core 16 made of transparent material, such as, for example, acrylic glass, which is covered on one side with microprisms 17, which form furrows 18 - starting from its root - taper, taking the entirety of the microprism cover surfaces the light entry surface and the other side of the core 17 the light exit surface forms.
  • 3 are the microprisms 17 arranged in rows and rows in a matrix (cross structure).
  • the optical element 12 it is also conceivable for the optical element 12 to be reversed into the luminaire 10 install.
  • the entirety of the microprism cover surfaces forms the Light exit surface and the other side of the core 17, the light entry surface.
  • the lamps 11 are laterally offset from the radiation opening 13 or the optical one Element 14 arranged. Furthermore, the reflector 12 is in relation to the lamps 11 arranged and shaped that the light rays emitted by the lamps 11 are not emitted directly through the radiation opening 13, i.e. essentially only at the reflector 12 reflected light rays 15, the radiation opening 13 through the optical Can leave element 14.
  • the inside of the reflector 12 is preferably diffuse designed to be reflective, such as painted white or highly reflective Teflon coated.
  • the construction of the optical element 14 with microprism structure 17 results in glare control of the light rays for the viewer, i.e. a Limiting the exit angle of the light rays 15 from the lamp 10. Because no or almost no light rays directly from the lamps 11 through the optical Element 14 are emitted, but essentially only on the inside of the Reflector 12 couple reflected light rays 15 into the optical element 14 and leaving this down again, one achieves an even or at least almost uniform illumination of the entire surface of the optical element 14. This effect is further enhanced by a diffusely reflecting inside of the reflector strengthened.
  • the second embodiment differs from the first Embodiment in that a total of two optical elements 14-1 and 14-2 in or are arranged in front of the radiation opening 13 of the reflector 12. Furthermore corresponds to the structure of the lamp 10, i.e. in particular the arrangement of the lamps 11 and the reflector 12, that of the first embodiment.
  • Both optical elements 14-1, 14-2 of the lamp 10 are constructed according to FIG. 4. in the In contrast to the optical element according to FIG. 1 with a matrix-like arrangement Microprism structure 17 has the microprisms 17 of this embodiment elongated structure. In other words, the microprisms extend in one Direction of expansion of the optical element over the substantially entire length of the optical element 10 (longitudinal structure) while in the other direction are arranged sequentially. Due to the elongated microprisms 17 Cross glare achieved perpendicular to the direction of extension of the microprisms 17.
  • the first optical element 14-1 is such arranged that the elongated microprisms 17 parallel to the longitudinal axis of the Lamps 11 is aligned, while the direction of extension of the microprisms 17 of the second optical element 14-2 extends transversely to the longitudinal axis of the lamps 11.
  • the Optical elements 14-1 and 14-2 can also be in the reverse order or be mounted in front of the radiation opening 13 of the reflector 12 without this would have an impact on the optical properties of the entire arrangement.
  • the gaps or furrows are 18th between the adjacent microprisms 17, preferably with a reflective one Material 19, for example a metal foil with high reflectivity, covered.
  • a reflective one Material 19 for example a metal foil with high reflectivity
  • An elongated lamp 11, for example a fluorescent tube, is of a corresponding, also surround elongated reflector 12 or reflector housing.
  • the Reflector 12 has a radiation opening 13 on its underside, which is connected to a optical element 14-1 is closed.
  • the optical element 14-1 corresponds to that in Fig. 4 embodiment shown, so in particular has a longitudinal structure of the Microprisms 17.
  • the optical element 14-1 is as shown in Fig. 6 aligned that the microprisms 17 extend transversely to the longitudinal axis of the lamp 11.
  • the inside of the Reflector 12 is designed to be reflective and the lamp 11 is not laterally offset but arranged centrally above the optical element 14-1. Still can even in this case, uniform illumination of the optical element 14-1 and glare control of the light rays, i.e.
  • a limitation of the exit angle of the Rays of light from the lamp 10 can be achieved because the specularly reflective Inside of the reflector 12 directs the light transversely to the longitudinal axis of the lamp 11 and thus in this direction for both glare control and uniform Illumination ensures the optical element 14-1 due to the longitudinal structure of the microprisms 17 transverse to the longitudinal axis of the lamp for glare control parallel to the longitudinal axis of the lamp, and uniform illumination parallel to the longitudinal direction the lamp is automatically given by the elongated shape of the lamp.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Finger-Pressure Massage (AREA)
  • Road Signs Or Road Markings (AREA)
EP03007163A 1999-05-20 2000-04-19 Luminaire Expired - Lifetime EP1338845B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19923225A DE19923225B4 (de) 1999-05-20 1999-05-20 Optisches Element zur Umlenkung von Lichtstrahlen und Herstellungsverfahren
DE19923225 1999-05-20
DE29909282U 1999-05-27
DE29909282U DE29909282U1 (de) 1999-05-20 1999-05-27 Leuchte
EP00929391A EP1179158B1 (fr) 1999-05-20 2000-04-19 Dispositif d'eclairage

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00929391A Division EP1179158B1 (fr) 1999-05-20 2000-04-19 Dispositif d'eclairage

Publications (3)

Publication Number Publication Date
EP1338845A2 true EP1338845A2 (fr) 2003-08-27
EP1338845A3 EP1338845A3 (fr) 2007-01-17
EP1338845B1 EP1338845B1 (fr) 2009-08-19

Family

ID=26053450

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00929391A Expired - Lifetime EP1179158B1 (fr) 1999-05-20 2000-04-19 Dispositif d'eclairage
EP03007163A Expired - Lifetime EP1338845B1 (fr) 1999-05-20 2000-04-19 Luminaire

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP00929391A Expired - Lifetime EP1179158B1 (fr) 1999-05-20 2000-04-19 Dispositif d'eclairage

Country Status (12)

Country Link
US (1) US6945670B2 (fr)
EP (2) EP1179158B1 (fr)
JP (1) JP2003500813A (fr)
AT (1) ATE244852T1 (fr)
AU (1) AU765828B2 (fr)
CA (1) CA2374023C (fr)
DK (1) DK1179158T3 (fr)
ES (1) ES2202127T3 (fr)
NO (1) NO20015632D0 (fr)
NZ (1) NZ515195A (fr)
PT (1) PT1179158E (fr)
WO (1) WO2000071927A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1734300A1 (fr) 2005-06-13 2006-12-20 Hartmut S. Engel Luminaire d'intérieur

Families Citing this family (13)

* Cited by examiner, † Cited by third party
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US6801003B2 (en) * 2001-03-13 2004-10-05 Color Kinetics, Incorporated Systems and methods for synchronizing lighting effects
DE10125553A1 (de) * 2001-05-23 2002-11-28 Philips Corp Intellectual Pty Flüssigkristallbildschirm mit Kollimator
DE10315268A1 (de) * 2003-04-03 2004-10-14 Zumtobel Staff Gmbh Lichtbeeinflussungselement
KR100829015B1 (ko) * 2006-08-22 2008-05-14 엘지전자 주식회사 면 광원 장치, 이를 구비한 백라이트 유닛 및 액정 표시장치
CN101730820B (zh) * 2007-05-02 2012-12-05 照明器控股有限公司 照明方法和系统
WO2009067844A1 (fr) * 2007-11-28 2009-06-04 Chihua Shieh Dispositif d'éclairage à diode électroluminescente
US8020440B2 (en) * 2008-05-16 2011-09-20 Rosemount Aerospace Inc. System and method for providing high-range capability with closed-loop inertial sensors
CA3035478C (fr) 2008-09-24 2021-03-23 Luminator Holding Lp Procedes et systemes de maintien de l'intensite d'eclairement de diodes electroluminescentes
CN105745489B (zh) * 2013-09-24 2019-06-28 飞利浦灯具控股公司 照明单元
EP3084291A1 (fr) * 2013-12-16 2016-10-26 Philips Lighting Holding B.V. Mise en forme de faisceau non obstrué flexible
CN104033766A (zh) * 2014-06-16 2014-09-10 顾钰锋 无闪烁照明灯
US10222029B2 (en) * 2014-09-30 2019-03-05 The Boeing Company Array-based lighting systems and methods of manufacturing
US10955108B2 (en) * 2016-06-28 2021-03-23 Opple Lighting Co., Ltd. Ceiling lamp

Citations (5)

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Publication number Priority date Publication date Assignee Title
WO1995012782A1 (fr) 1993-11-05 1995-05-11 Alliedsignal Inc. Appareil a eclairage par l'arriere employant un ensemble de microprismes
WO1997036131A1 (fr) 1996-03-26 1997-10-02 Alliedsignal Inc. Systeme d'eclairage comprenant des microprismes pourvus de dispositifs de blocage
AT403403B (de) 1987-02-12 1998-02-25 Zumtobel Ag Abdeckung für leuchten
JPH10106319A (ja) 1996-09-30 1998-04-24 Sony Corp 異方性面光源装置及び透過型表示装置
EP0911577A2 (fr) 1997-10-16 1999-04-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique

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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403403B (de) 1987-02-12 1998-02-25 Zumtobel Ag Abdeckung für leuchten
WO1995012782A1 (fr) 1993-11-05 1995-05-11 Alliedsignal Inc. Appareil a eclairage par l'arriere employant un ensemble de microprismes
WO1997036131A1 (fr) 1996-03-26 1997-10-02 Alliedsignal Inc. Systeme d'eclairage comprenant des microprismes pourvus de dispositifs de blocage
JPH10106319A (ja) 1996-09-30 1998-04-24 Sony Corp 異方性面光源装置及び透過型表示装置
EP0911577A2 (fr) 1997-10-16 1999-04-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe électrique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1734300A1 (fr) 2005-06-13 2006-12-20 Hartmut S. Engel Luminaire d'intérieur
WO2006133861A1 (fr) 2005-06-13 2006-12-21 Engel Hartmut S Dispositif d'eclairage interieur
US7914170B2 (en) 2005-06-13 2011-03-29 Engel Hartmut S Interior light

Also Published As

Publication number Publication date
WO2000071927A1 (fr) 2000-11-30
EP1338845B1 (fr) 2009-08-19
JP2003500813A (ja) 2003-01-07
NO20015632L (no) 2001-11-19
EP1179158B1 (fr) 2003-07-09
CA2374023C (fr) 2009-06-30
ATE244852T1 (de) 2003-07-15
US6945670B2 (en) 2005-09-20
NO20015632D0 (no) 2001-11-19
US20020048168A1 (en) 2002-04-25
PT1179158E (pt) 2003-09-30
EP1338845A3 (fr) 2007-01-17
NZ515195A (en) 2003-04-29
EP1179158A1 (fr) 2002-02-13
DK1179158T3 (da) 2003-08-04
ES2202127T3 (es) 2004-04-01
AU4749700A (en) 2000-12-12
CA2374023A1 (fr) 2000-11-30
AU765828B2 (en) 2003-10-02

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