EP0201926B1 - Dispositif d'éclairage indirect - Google Patents

Dispositif d'éclairage indirect Download PDF

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Publication number
EP0201926B1
EP0201926B1 EP86106662A EP86106662A EP0201926B1 EP 0201926 B1 EP0201926 B1 EP 0201926B1 EP 86106662 A EP86106662 A EP 86106662A EP 86106662 A EP86106662 A EP 86106662A EP 0201926 B1 EP0201926 B1 EP 0201926B1
Authority
EP
European Patent Office
Prior art keywords
reflector
lamp
counter
light fixture
mirror
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
Application number
EP86106662A
Other languages
German (de)
English (en)
Other versions
EP0201926A1 (fr
Inventor
Christian Bartenbach
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT86106662T priority Critical patent/ATE39742T1/de
Publication of EP0201926A1 publication Critical patent/EP0201926A1/fr
Application granted granted Critical
Publication of EP0201926B1 publication Critical patent/EP0201926B1/fr
Expired legal-status Critical Current

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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
    • 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
    • F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • 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
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37—U-shaped

Definitions

  • the invention relates to an indirect mirror luminaire with a counter reflector, with a tubular lamp completely shielded from the counter reflector on one side and with a main reflector arranged on the other side of the lamp and at least partially concavely curved with respect to the lamp, whose reflecting surface is larger than that of the Counter reflector is formed.
  • a lamp is known from DE-A-2 420 022.
  • the lamp Above a shielding angle - measured from the vertical - the lamp has a shielding area in which no light is emitted by the main reflector. At a viewing angle that is smaller than the shielding angle (radiation area), the lamp itself is covered by the counter reflector.
  • Mirror lights of the known type have only a small luminous flux. To illuminate larger rooms evenly, a large number of these lights is necessary, which is not always economically justifiable.
  • the object of the invention is to provide a mirror lamp of the type mentioned with a higher luminous flux, in which the luminance in the radiation range does not exceed a predetermined value.
  • the lamp is a fluorescent tube and that the counter-reflector is formed in a channel-shaped manner parallel to the lamp axis and is provided with transverse slats aligned perpendicular to the lamp axis for dimming the lamp in the axial direction.
  • the desired high luminous flux is ensured by using the fluorescent tube.
  • the cross blades on the counter reflector ensure that the luminance in the radiation area is low even when viewed in the longitudinal direction.
  • a particularly advantageous embodiment of the invention is characterized in that the main reflector, seen in cross section, consists of two circular arc parts placed against one another and an outer part attached to each side of the circular reflector. This measure results in a particularly low structure of the mirror lamp.
  • a lamp 1 is arranged inside a counter reflector 3, which is designed as a channel.
  • the lamp 1, which is designed as a fluorescent tube, is surrounded by this and completely shielded.
  • the fluorescent tube 1 is U-shaped, that is to say it has two parallel illuminated paths, and is plugged into a base 5 at its end.
  • the base 5 is mounted on a fastening part 7 which is fastened to the counter reflector 3.
  • the lamp 1 is surrounded by circular transverse lamellae 9 which are arranged at a distance from one another and have a parabolic or triangular cross-section which is known in the case of louvre lamps.
  • This arrangement of counter-reflector 3 with fluorescent tube 1 is located opposite a main reflector 11. This has the shape of a groove which is slightly depressed in the area opposite the fluorescent tube 1 and is attached to a housing 13 at the side.
  • the main reflector 11 is mirror-symmetrical with respect to the center plane 15, which runs through the fluorescent tube 1. Seen in cross section, the main reflector 11 first has a circular arc part 17 on both sides of the center plane 15 and then an outer part, which is designed here as a parabolic arc part 19. Both circular arc parts 17 are assembled at Z. The size of each circular arc part 17 is determined by a boundary beam 21, 21 ', which is emitted from a point F on the edge or outside the edge of the counter reflector 3, after reflection in point L of the circular arc part 17 takes back the same beam path (21') and includes the shielding angle a with the vertical. For safety reasons, this outermost point F is something in FIG placed next to the counter reflector 3. The circular arc part 17 is thus guided up to the point L and merges there into the parabolic arc part 19. At point L, both arc parts 17, 19 have the same slope.
  • the focal point of the parabola on which the parabolic arch part 19 is based is located at point F, through which its main axis also runs.
  • the counter reflector 3 and the main reflector 11 have the smallest possible distance A from one another in order to achieve a compact design.
  • This distance A is dependent on the required shielding angle a and the width B of the counter reflector 3.
  • the smallest distance A is obtained when a light beam 23 is emitted from the left outer edge of the counter reflector 3 to point Z on the left edge of the right circular arc part 17 and from there is reflected as light beam 23 'at the shielding angle a.
  • the specified value for the shielding angle a would be exceeded.
  • the main reflector 11 has a diffusely reflecting inner surface with a directivity (directionally reflected portion) of 20 to 40%.
  • a directivity directionally reflected portion
  • the directivity is about 20%.
  • the directivity can be increased to a value of approximately 40%.
  • Pure or purest aluminum can be used as the material for the main reflector 11.
  • a plastic can be used, the reflective surface of which is coated with pure or ultra-pure aluminum.
  • the surface of the main reflector 11 is either roughened, painted or coated. It is also possible to provide the main reflector 11 with fine holes and to deposit these with a white layer. This also results in good sound insulation.
  • the inside of the counter reflector 3 is also made of pure or purest aluminum. It is high-gloss, that is, mirrored. The end faces of the reflectors 3, 11 can have a glossy or diffuse surface.
  • FIG. 3 the same components are identified with the same reference numerals as in FIGS. 1 and 2.
  • the two outer parts of the main reflector 11 are not curved, i.e. H. straight in cross-section. This gives the mirror lamp larger dimensions, but this may be desirable for aesthetic or structural reasons.
  • the description of FIGS. 1 and 2 applies analogously to the structure and mode of operation of the mirror lamp according to FIG. 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Road Signs Or Road Markings (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Claims (7)

1. Luminaire à éclairage indirect et à réflecteurs, comportant un réflecteur antagoniste (3), une lampe tubulaire (1) complètement masquée d'un côté par rapport au réflecteur antagoniste (3) et un réflecteur principal (11) qui est disposé de l'autre côté de la lampe (1), et au moins partiellement cintré avec une forme concave en direction de la lampe (1) et dont la surface réfléchissante est plus grande que celle du réflecteur antagoniste, caractérisé par le fait que la lampe est un tube fluorescent, et que le réflecteur antagoniste (3) est réalisé sous la forme d'un anneau disposé parallèlement à l'axe de la lampe et est équipé de lamelles transversales (9) disposées perpendiculairement à l'axe de la lampe et servant à masquer la lampe (1) dans la direction axiale.
2. Luminaire à réflecteurs suivant la revendication 1, caractérisé par le fait que - en coupe transversale - la surface enveloppe du réflecteur principal (11) est constituée par deux éléments d'arc de cercle (17) juxtaposés et par des éléments extérieurs (19) juxtaposés latéralement aux éléments précédents.
3. Luminaire à réflecteurs suivant la revendication 2, caractérisé par le fait que le réflecteur principal (11) est mat et possède un pouvoir directif de 20 - 40 %.
4. Luminaire à réflecteurs suivant la revendication 3, caracérisé par le fait que le réflecteur principal (11) possède approximativement une largeur égale au sextuple de celle du réflecteur antagoniste (3).
5. Luminaire à réflecteurs suivant la revendication 4, caractérisé par le fait que la longueur du réflecteur principal (11) est au moins égale à sa largeur.
6. Luminaire à réflecteurs suivant la revendication 5, caractérisé par le fait que la longueur du réflecteur principal (11) est comprise entre 30 et 160 cm.
7. Luminaire à réflecteurs suivant l'une des revendications 1 à 6, caractérisé par le fait que la surface enveloppe du réflecteur principal (11) est symétrique par rapport au plan central (15) qui traverse le tube fluorescent.
EP86106662A 1985-05-17 1986-05-15 Dispositif d'éclairage indirect Expired EP0201926B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86106662T ATE39742T1 (de) 1985-05-17 1986-05-15 Indirekte spiegelleuchte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3517897 1985-05-17
DE3517897 1985-05-17

Publications (2)

Publication Number Publication Date
EP0201926A1 EP0201926A1 (fr) 1986-11-20
EP0201926B1 true EP0201926B1 (fr) 1989-01-04

Family

ID=6271049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106662A Expired EP0201926B1 (fr) 1985-05-17 1986-05-15 Dispositif d'éclairage indirect

Country Status (7)

Country Link
US (1) US4794501A (fr)
EP (1) EP0201926B1 (fr)
JP (1) JPS61284003A (fr)
AT (1) ATE39742T1 (fr)
DE (1) DE3661652D1 (fr)
DK (1) DK166102C (fr)
NO (1) NO168387C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136251A1 (de) * 1990-11-12 1992-05-14 Siemens Ag Indirekte spiegelleuchte

Families Citing this family (36)

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JPS63165710U (fr) * 1987-04-20 1988-10-28
US5235497A (en) * 1988-04-04 1993-08-10 Costa Paul D Luminescent fixture providing directed lighting for television, video, and film production
DE3841501C2 (de) * 1988-12-09 1997-02-20 Teves Gmbh Alfred Fahrzeugleuchte, insbesondere Nebelschluß- oder Rückfahrleuchte
DE3902494C2 (de) * 1989-01-27 1997-04-30 Siemens Ag Indirekte Spiegelleuchte
DE4024738C2 (de) * 1990-08-03 1995-04-27 Siemens Ag Indirekte Spiegelleuchte
DE4125545A1 (de) * 1990-08-16 1992-02-20 Siemens Ag Indirekte spiegelleuchte
DE9109267U1 (fr) * 1991-07-26 1991-10-31 Siemens Ag, 8000 Muenchen, De
US5253151A (en) * 1991-09-30 1993-10-12 Rockwell International Corporation Luminaire for use in backlighting a liquid crystal display matrix
US5676453A (en) * 1992-04-16 1997-10-14 Tir Technologies, Inc. Collimating TIR lens devices employing fluorescent light sources
US5249110A (en) * 1992-10-23 1993-09-28 The Genlyte Group Incorporated Light fixture with adjustable bulb and radiant heat dissipating reflector
US5394317A (en) * 1992-11-03 1995-02-28 Grenga; John J. Lamp reflector
US5567042A (en) * 1994-05-27 1996-10-22 Allen-Bradley Company, Inc. Reflector for flat panel display backlight unit
ES2114802B1 (es) * 1996-01-22 1999-02-16 Juan Roura Y Cia S A Perfeccionamientos en los dispositivos de iluminacion rotulos y similares.
AUPS119302A0 (en) * 2002-03-20 2002-04-18 Haines, Christopher Alan A lighting fixture including two reflectors
BG788Y1 (bg) * 2002-03-22 2006-01-31 "Рота Инженеринг" Оод Модулно осветително тяло за индиректно осветление
WO2003087662A1 (fr) * 2002-04-12 2003-10-23 Koninklijke Philips Electronics N.V. Luminaire
US7325938B2 (en) * 2002-06-05 2008-02-05 Genlyte Thomas Group, Llc Indirector light fixture
AT500432B8 (de) * 2003-04-07 2007-02-15 Bartenbach Christian Beleuchtungsvorrichtung
US7150542B1 (en) 2004-03-03 2006-12-19 Genlyte Thomas Group, Llc Multiple position luminaire
US7258467B2 (en) * 2004-03-12 2007-08-21 Honeywell International, Inc. Low profile direct/indirect luminaires
DE102005020085A1 (de) * 2005-04-29 2006-11-09 Osram Opto Semiconductors Gmbh Kfz-Scheinwerfer
US7520636B2 (en) * 2005-11-11 2009-04-21 Koninklijke Philips Electronics N.V. Luminaire comprising LEDs
CA2586467C (fr) * 2006-04-28 2011-03-01 Genlyte Thomas Group Llc Anneau de garniture arriere pour luminaire anti-vandalisme
US9188320B2 (en) 2006-10-09 2015-11-17 Genlyte Thomas Group, Llc Luminaire junction box
US20080186717A1 (en) * 2007-02-01 2008-08-07 Genlyte Thomas Group Llc Compact In-Grade Luminaire
US7585088B2 (en) * 2007-04-03 2009-09-08 Abl Ip Holding Llc Fluorescent lamp fixture
US7524078B1 (en) * 2008-01-18 2009-04-28 Genlyte Thomas Group Llc In-grade lighting fixture
US7905621B1 (en) 2008-01-18 2011-03-15 Genlyte Thomas Group, Llc In-grade lighting fixture
US7841755B1 (en) 2008-05-05 2010-11-30 Genlyte Thomas Group Llc Luminaire and mounting bracket combination
US8061666B1 (en) 2008-08-05 2011-11-22 Philips Electronics Ltd Adapter assembly for pole luminaire
US9022298B2 (en) * 2009-08-27 2015-05-05 Reznor Llc Radiant heat reflector and heat converter
US8496362B2 (en) 2010-04-09 2013-07-30 Bridgelux Inc. Highly efficient LED array module with pre-calculated non-circular asymmetrical light distribution
EP2622263B1 (fr) * 2010-09-30 2014-09-03 Koninklijke Philips N.V. Dispositif d'éclairage et luminaire
JP5989305B2 (ja) * 2011-01-14 2016-09-07 エルジー イノテック カンパニー リミテッド バックライトユニット及びそれを用いたディスプレイ装置
US9512977B2 (en) * 2012-01-26 2016-12-06 Cree, Inc. Reduced contrast LED lighting system
JP2016009559A (ja) * 2014-06-24 2016-01-18 レシップホールディングス株式会社 Ｌｅｄ灯具

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US4310876A (en) * 1978-06-30 1982-01-12 Small Jr Edward A Lighting fixture and method using multiple reflections
US4414609A (en) * 1982-10-08 1983-11-08 Sylvan R. Shemitz And Associates, Inc. Luminaire for a visual display terminal
FR2554549B1 (fr) * 1983-11-03 1988-03-11 Sabir Dispositif anti-eblouissement pour luminaires a sources lineaires

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Title
Produktprospekt "Objektleuchten", der Fa. Siemens AG, Katalog I, 4.23m 1982, p. 3/0 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4136251A1 (de) * 1990-11-12 1992-05-14 Siemens Ag Indirekte spiegelleuchte

Also Published As

Publication number Publication date
NO168387C (no) 1992-02-12
JPS61284003A (ja) 1986-12-15
DE3661652D1 (en) 1989-02-09
DK229186D0 (da) 1986-05-16
DK229186A (da) 1986-11-18
ATE39742T1 (de) 1989-01-15
DK166102C (da) 1993-07-19
NO861958L (no) 1986-11-18
EP0201926A1 (fr) 1986-11-20
NO168387B (no) 1991-11-04
US4794501A (en) 1988-12-27
DK166102B (da) 1993-03-08

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