EP1179158B1 - Leuchte - Google Patents

Leuchte Download PDF

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Publication number
EP1179158B1
EP1179158B1 EP00929391A EP00929391A EP1179158B1 EP 1179158 B1 EP1179158 B1 EP 1179158B1 EP 00929391 A EP00929391 A EP 00929391A EP 00929391 A EP00929391 A EP 00929391A EP 1179158 B1 EP1179158 B1 EP 1179158B1
Authority
EP
European Patent Office
Prior art keywords
lamp
reflector
optical element
microprisms
light
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.)
Expired - Lifetime
Application number
EP00929391A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1179158A1 (de
Inventor
Günther SEJKORA
Jürg 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 Staff GmbH
Original Assignee
Zumtobel Staff GmbH
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 filed Critical Zumtobel Staff GmbH
Priority to EP03007163A priority Critical patent/EP1338845B1/de
Publication of EP1179158A1 publication Critical patent/EP1179158A1/de
Application granted granted Critical
Publication of EP1179158B1 publication Critical patent/EP1179158B1/de
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 low-cost 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.
  • the corresponding designed optical element ensures glare control for the viewer who
  • the brightness distribution of light over the optical element is not uniform, because in the vicinity of the lamp, more light rays are coupled into the optical element than 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.
  • this object is achieved by a lamp solved the features of claim 1.
  • the reflector is arranged and shaped with respect to the lamp that essentially only light rays reflected at the reflector pass through the radiation opening can leave the optical element is achieved that the outgoing from the lamp Light rays evenly distributed on the optical element in this couple and with an exit angle that is smaller than a predetermined limit exit angle is to exit this again.
  • microprisms of the optical element are arranged in a matrix (cross structure), whereby glare from the light emitted by the lamp in all Directions is achieved.
  • the arrangement and design of a reflector in a manner that in light rays reflected only at the reflector, the radiation opening of a Can leave lamp is already from the subsequently published EP 1 130 01 A2 known. However, there are no microprisms in one with this lamp Matrix structure provided.
  • one of the EP 0 860 655 A2 known lamp arrangement of the reflector shaped so that only Light rays reflected at the reflector leave the radiation opening. This special However, the arrangement does not serve to improve the light emission of the lamp, but only the suppression of the disturbing so-called EMI radiation.
  • the reflector consists of a material that contains the interfering radiation components absorbed.
  • the inside of the reflector is preferably designed to be diffusely reflective around the To intensify the effect of the uniform distribution of light rays.
  • FIG. 3 is a preferred embodiments of the invention Lamp shown schematically. The optical used in this lamp Element is shown in Fig. 1.
  • the first embodiment shown in FIG. 3 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.
  • a second embodiment of a lamp 10 described which is not the subject of the claims.
  • 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 can be obtained from the lamp 10 because the mirror reflecting 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)
EP00929391A 1999-05-20 2000-04-19 Leuchte Expired - Lifetime EP1179158B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03007163A EP1338845B1 (de) 1999-05-20 2000-04-19 Leuchte

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 DE29909282U1 (de) 1999-05-20 1999-05-27 Leuchte
DE29909282U 1999-05-27
PCT/EP2000/003571 WO2000071927A1 (de) 1999-05-20 2000-04-19 Leuchte

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP03007163A Division EP1338845B1 (de) 1999-05-20 2000-04-19 Leuchte

Publications (2)

Publication Number Publication Date
EP1179158A1 EP1179158A1 (de) 2002-02-13
EP1179158B1 true EP1179158B1 (de) 2003-07-09

Family

ID=26053450

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00929391A Expired - Lifetime EP1179158B1 (de) 1999-05-20 2000-04-19 Leuchte
EP03007163A Expired - Lifetime EP1338845B1 (de) 1999-05-20 2000-04-19 Leuchte

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03007163A Expired - Lifetime EP1338845B1 (de) 1999-05-20 2000-04-19 Leuchte

Country Status (12)

Country Link
US (1) US6945670B2 (enExample)
EP (2) EP1179158B1 (enExample)
JP (1) JP2003500813A (enExample)
AT (1) ATE244852T1 (enExample)
AU (1) AU765828B2 (enExample)
CA (1) CA2374023C (enExample)
DK (1) DK1179158T3 (enExample)
ES (1) ES2202127T3 (enExample)
NO (1) NO20015632L (enExample)
NZ (1) NZ515195A (enExample)
PT (1) PT1179158E (enExample)
WO (1) WO2000071927A1 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
ATE412851T1 (de) 2005-06-13 2008-11-15 Hartmut S Engel Innenraumleuchte
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 (en) * 2007-11-28 2009-06-04 Chihua Shieh A light emitting diode illuminator
US8020440B2 (en) * 2008-05-16 2011-09-20 Rosemount Aerospace Inc. System and method for providing high-range capability with closed-loop inertial sensors
CN102203689B (zh) 2008-09-24 2014-06-25 照明器控股有限公司 用于维持发光二极管的发光强度的方法和系统
CN105745489B (zh) * 2013-09-24 2019-06-28 飞利浦灯具控股公司 照明单元
WO2015090706A1 (en) * 2013-12-16 2015-06-25 Koninklijke Philips N.V. Flexible unobstructed beam shaping.
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

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JPS54129192A (en) * 1978-03-31 1979-10-06 Kikkoman Corp Wine having rich noble rot flavor and its preparation
JPS5935302A (ja) * 1982-08-23 1984-02-27 東芝テック株式会社 照明器具
AT403403B (de) 1987-02-12 1998-02-25 Zumtobel Ag Abdeckung für leuchten
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JP2842739B2 (ja) * 1992-09-14 1999-01-06 富士通株式会社 面光源ユニット及び液晶表示装置
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Also Published As

Publication number Publication date
US6945670B2 (en) 2005-09-20
WO2000071927A1 (de) 2000-11-30
CA2374023C (en) 2009-06-30
NO20015632D0 (no) 2001-11-19
EP1179158A1 (de) 2002-02-13
AU4749700A (en) 2000-12-12
PT1179158E (pt) 2003-09-30
CA2374023A1 (en) 2000-11-30
AU765828B2 (en) 2003-10-02
ATE244852T1 (de) 2003-07-15
ES2202127T3 (es) 2004-04-01
DK1179158T3 (da) 2003-08-04
US20020048168A1 (en) 2002-04-25
NZ515195A (en) 2003-04-29
NO20015632L (no) 2001-11-19
EP1338845A3 (de) 2007-01-17
EP1338845A2 (de) 2003-08-27
JP2003500813A (ja) 2003-01-07
EP1338845B1 (de) 2009-08-19

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