EP0665936B1 - Leuchte mit langgestrecktem leuchtmittel und reflektoren - Google Patents

Leuchte mit langgestrecktem leuchtmittel und reflektoren Download PDF

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Publication number
EP0665936B1
EP0665936B1 EP93923470A EP93923470A EP0665936B1 EP 0665936 B1 EP0665936 B1 EP 0665936B1 EP 93923470 A EP93923470 A EP 93923470A EP 93923470 A EP93923470 A EP 93923470A EP 0665936 B1 EP0665936 B1 EP 0665936B1
Authority
EP
European Patent Office
Prior art keywords
reflector
ceiling
reflector surfaces
cage
lamp
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
EP93923470A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0665936A1 (de
Inventor
Karin Pesau
Georg Kempter
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 EP0665936A1 publication Critical patent/EP0665936A1/de
Application granted granted Critical
Publication of EP0665936B1 publication Critical patent/EP0665936B1/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
    • 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
    • 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

Definitions

  • the invention relates to a lamp with at least one elongated lamp with at least two reflectors arranged above it and a preferably partially transparent reflector basket arranged under the two reflectors, said basket covering the lamp (s).
  • Luminaires with partially translucent reflecting baskets in particular are characterized by a particularly pleasant lighting effect, i. h, the spatial impression for a viewer is bright, although the illuminance levels are relatively low.
  • the characteristic is based on daylight.
  • Such lights are usually designed as recessed ceiling lights, d. That is, such lights can only be used in conjunction with suspended ceiling systems. (Suspended ceilings require rooms with a certain minimum height).
  • Luminaires of this type have already become known, which can be attached to ceilings or suspended.
  • a disadvantage of all these lamps is that the two reflectors arranged above the lamp (s) are designed in such a way that they are depicted on the ceiling as disturbing shadows.
  • V-shaped reflector walls connect to the ceiling at a right angle.
  • the resulting jump-like or stair-shaped heel creates a shadow on the ceiling.
  • the reflector basket is made partially transparent to the light, part of the light passes through this reflector, is preferably scattered, and thus the luminance remains below the value of the illuminant (s) used and thus prevents glare to an observer.
  • the object of the invention is to design a lamp of the type mentioned in such a way that it can be attached directly to ceilings and the pleasant lighting effect is maintained without forming disturbing shadows. Furthermore, this luminaire should also be able to be used in rooms with VDU workstations.
  • the invention is characterized by the technical teaching of claim 1.
  • V-shaped profiled reflector surfaces have approximately a bird's wing-like profile in the front view, their outer longitudinal front edges extending into the vicinity of ceiling elements to which the lamp is fastened in such a way that the transition region of the reflector surfaces clings tangentially to the surface of the ceiling elements in the area of the outer longitudinal end edges.
  • the outer longitudinal end edge comes very close to the ceiling elements.
  • the tangential approach of the V-shaped reflector to the ceiling must be stepless, i.e. without step-like heel at the long edge.
  • the tangential nestling of the transition area of the reflector surfaces in the area of the outer longitudinal end edge to the ceiling elements also makes it unnecessary to maintain a constant height of the longitudinal end edge.
  • the reflector surfaces according to the invention are therefore concavely curved.
  • An advantageous effect of the invention is that a lamp with the reflectors designed according to the invention is integrated harmoniously on the ceiling. This enhances the pleasant, calm, daylight-like lighting effect of the lamp.
  • the inventive design of the reflector contour also lightens the ceiling and thus improves the efficiency. (Light rays not only hit the reflectors, but also directly on the ceiling).
  • the reflector surfaces are designed to be continuously curved and to extend from the inner longitudinal end edges to the outer longitudinal end edges lying against the ceiling elements with a constant curvature.
  • the reflector surfaces are continuously curved and can have a relatively steep curvature in the vicinity of the reflector cage, which transitions into a curve of lesser curvature while overcoming a relatively small radius.
  • transition area of the longitudinal end edges near the ceiling to the ceiling elements can be designed differently.
  • the tangent to the reflector surfaces in the area close to the ceiling conforms to the ceiling surface, i. that is, there is a tangential transition of the reflector surface into the ceiling surface.
  • the tangent to the reflector surfaces in the area near the ceiling forms an angle to the ceiling surface itself.
  • the lamp in a first embodiment of the lamp according to FIGS. 1 and 2, it essentially consists of a reflector basket 2, which is covered on the end face by basket front parts 1, 1 '.
  • the reflector basket 2 is preferably made of perforated sheet metal and backed with a matt or opal film, and can be designed to be translucent, partially translucent or opaque.
  • the reflector basket 2 is fastened to a mounting rail 3, the lamp operating devices being able to be attached either in a tub part or advantageously on the mounting rail.
  • the sockets for the one or more lamps are attached to the respective front part 1.1 'of the basket.
  • the lamps are thus covered by the reflector basket 2.
  • the reflector basket 2 is advantageously fastened to the lamp by means of the mounting rail 3, the mounting rail 3 forming part of the reflector surfaces 4, 4 'according to the invention.
  • the tub part 12 is usually screwed onto the ceiling, the ceiling in the exemplary embodiment being formed from plate-shaped ceiling elements 5-11.
  • the reflector surfaces 4, 4 'and also the reflector surfaces 15 and 16 according to FIGS. 3 and 4 are curved approximately concavely and form an approximately V-shaped profile in the manner of a bird's wing in the end view.
  • each reflector surface 4, 4 'nestles seamlessly against the surface of the ceiling elements 5-11. That is, a tangent 22 in this area on the reflector surface 4 is parallel to the surface of the ceiling elements 5 themselves.
  • FIGS. 1 and 2 show that instead of the relatively strong curvature of the reflector surfaces 4, 4 'in FIGS. 1 and 2, a steeper curvature 20 can also be provided for the reflector surfaces 16, the transition region 21 making an angle in the direction of the surface of the ceiling elements forms.
  • the Tangenete 22 at the region of the reflector surfaces 16 near the ceiling forms an angle 23 to the surface of the ceiling elements 5-11.
  • the reflector surfaces 15 can also be discontinuously curved, that is, starting from the inner longitudinal end edges, the reflector surfaces 15 initially form a relatively steep curvature 17 which, while overcoming a radius in the region of the bend 19, changes into a flatter curvature 18 which either tangentially according to the embodiment of Figure 2 or forming an angle according to the embodiment of Figure 3 can pass into the ceiling area.
  • the transition from the reflector contour to the ceiling does not have to be as smooth as in FIGS. 1 and 2, but it can also be erratic or the reflector can be kinked (FIGS. 3 and 4). However, this is in contrast to the desired pleasant lighting effect.
  • specially shaped reflectors are conceivable to achieve special lighting effects.
  • Figure 5 shows the lamp in an embodiment with a round (oval) base, which has the advantage over a rectangular shape that round lights can be used in an architecturally appealing form regardless of the shape of the room.
  • the luminaire according to the invention can also be used as a wall luminaire - shorter illuminants are preferably used for this (e.g. 18 W fluorescent lamp with 590 mm length or compact fluorescent lamps 36 W with 415 mm or 40 W or 55 W with 535 mm length).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Catching Or Destruction (AREA)
EP93923470A 1992-10-21 1993-10-15 Leuchte mit langgestrecktem leuchtmittel und reflektoren Expired - Lifetime EP0665936B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9214199U 1992-10-21
DE9214199U DE9214199U1 (de) 1992-10-21 1992-10-21 Leuchte mit langgestrecktem Leuchtmittel und Reflektoren
PCT/EP1993/002847 WO1994009311A1 (de) 1992-10-21 1993-10-15 Leuchte mit langgestrecktem leuchtmittel und reflektoren

Publications (2)

Publication Number Publication Date
EP0665936A1 EP0665936A1 (de) 1995-08-09
EP0665936B1 true EP0665936B1 (de) 1996-09-04

Family

ID=6885046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93923470A Expired - Lifetime EP0665936B1 (de) 1992-10-21 1993-10-15 Leuchte mit langgestrecktem leuchtmittel und reflektoren

Country Status (9)

Country Link
US (1) US5521801A (da)
EP (1) EP0665936B1 (da)
AT (1) ATE142319T1 (da)
DE (2) DE9214199U1 (da)
DK (1) DK0665936T3 (da)
ES (1) ES2093986T3 (da)
FI (1) FI107757B (da)
NO (1) NO319133B1 (da)
WO (1) WO1994009311A1 (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007059607A1 (de) * 2007-12-11 2009-06-18 Bartenbach, Christian, Ing. Wand- und/oder Deckenleuchte
DE102013021308A1 (de) * 2013-12-19 2015-06-25 Erco Gmbh Leuchte

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9416878U1 (de) * 1994-10-24 1994-12-15 Hoffmeister-Leuchten GmbH & Co KG, 58507 Lüdenscheid Langfeldleuchte
DE4443741A1 (de) * 1994-12-08 1996-06-13 Hartmut S Engel Leuchte
DE29519708U1 (de) * 1995-12-12 1997-04-10 Zumtobel Licht Gmbh, Dornbirn Leuchte mit wenigstens einem langgestreckten Leuchtmittel
DE19620209A1 (de) * 1996-05-20 1997-11-27 Zumtobel Licht Leuchte mit einem profilierten Basiskörper als Träger für wenigstens eine Lampe
ATE248321T1 (de) * 1996-12-04 2003-09-15 Siteco Beleuchtungstech Gmbh Innenraumleuchte
US5988829A (en) * 1997-07-28 1999-11-23 Nsi Enterprises, Inc. Direct/indirect lighting fixtures
WO2000070264A1 (en) * 1999-05-13 2000-11-23 Energy Management Limited Improvements in light fittings
US6837592B1 (en) 2000-04-06 2005-01-04 Genlyte Thomas Group, Llc Indirect luminaire optical system
US6505953B1 (en) 2000-04-06 2003-01-14 Genlyte Thomas Group Llc Luminaire optical system
US8574246B1 (en) 2004-06-25 2013-11-05 Cardica, Inc. Compliant anastomosis system utilizing suture
US20050047149A1 (en) * 2003-08-29 2005-03-03 O'brien Aaron Lamp containment barrier
US7745769B2 (en) * 2006-11-15 2010-06-29 Ecolivegreen Corp. System for adjusting a light source by sensing ambient illumination
US7883236B2 (en) * 2008-02-07 2011-02-08 Lsi Industries, Inc. Light fixture and reflector assembly for same
US8002446B1 (en) 2008-06-09 2011-08-23 Koninklijke Philips Electronics N.V. Virtual direct and indirect suspended lighting fixture
USD611642S1 (en) 2009-07-14 2010-03-09 Abl Ip Holding Llc Light fixture
USD614338S1 (en) 2009-07-14 2010-04-20 Abl Ip Holding Llc Light fixture
HUE048352T2 (hu) * 2010-09-30 2020-07-28 Signify Holding Bv Világítóeszköz és világítótest
USD738034S1 (en) * 2013-03-15 2015-09-01 Cree, Inc. Lighting apparatus
USD738033S1 (en) * 2013-03-15 2015-09-01 Cree, Inc. Lighting apparatus
USD743090S1 (en) * 2013-03-15 2015-11-10 Cree, Inc. Lighting apparatus
US11635188B2 (en) 2017-03-27 2023-04-25 Korrus, Inc. Lighting systems generating visible-light emissions for dynamically emulating sky colors
US10253948B1 (en) 2017-03-27 2019-04-09 EcoSense Lighting, Inc. Lighting systems having multiple edge-lit lightguide panels
US11585515B2 (en) 2016-01-28 2023-02-21 Korrus, Inc. Lighting controller for emulating progression of ambient sunlight

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1718155A (en) * 1928-05-15 1929-06-18 Edw F Caldwell & Company Inc Electric-light fixture
US2202266A (en) * 1938-10-31 1940-05-28 Lillian Montaldo Lighting fixture
US2305722A (en) * 1940-08-15 1942-12-22 Faries Mfg Co Lighting fixture
JPH0670682B2 (ja) * 1983-08-19 1994-09-07 日照技研株式会社 照明装置
CH669830A5 (da) * 1986-03-17 1989-04-14 Peter A Balla
GB2215447B (en) * 1987-11-06 1991-05-29 Designed Architectural Lightin Lighting installation
US4992695A (en) * 1989-10-10 1991-02-12 Daniel Naum Reflector for high-intensity lamps
US5097401A (en) * 1990-07-09 1992-03-17 Ross Eppler Indirect lighting modifiers for use with fluorescent fixtures
US5357413A (en) * 1993-05-07 1994-10-18 Mandall Michael C Armored lighting fixture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007059607A1 (de) * 2007-12-11 2009-06-18 Bartenbach, Christian, Ing. Wand- und/oder Deckenleuchte
DE102013021308A1 (de) * 2013-12-19 2015-06-25 Erco Gmbh Leuchte
DE102013021308B4 (de) * 2013-12-19 2017-08-31 Erco Gmbh Leuchte

Also Published As

Publication number Publication date
US5521801A (en) 1996-05-28
DE59303682D1 (de) 1996-10-10
DK0665936T3 (da) 1997-01-20
EP0665936A1 (de) 1995-08-09
WO1994009311A1 (de) 1994-04-28
NO951450D0 (no) 1995-04-18
ATE142319T1 (de) 1996-09-15
NO319133B1 (no) 2005-06-20
FI951038A (fi) 1995-04-20
FI107757B (fi) 2001-09-28
DE9214199U1 (de) 1993-11-25
NO951450L (no) 1995-04-21
FI951038A0 (fi) 1995-03-07
ES2093986T3 (es) 1997-01-01

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