EP0282640A1 - Lighting device to decoratively illuminate the interior of passenger lift cars - Google Patents

Lighting device to decoratively illuminate the interior of passenger lift cars Download PDF

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Publication number
EP0282640A1
EP0282640A1 EP87116488A EP87116488A EP0282640A1 EP 0282640 A1 EP0282640 A1 EP 0282640A1 EP 87116488 A EP87116488 A EP 87116488A EP 87116488 A EP87116488 A EP 87116488A EP 0282640 A1 EP0282640 A1 EP 0282640A1
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EP
European Patent Office
Prior art keywords
lighting device
car
lighting
lamp
liquid filter
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
EP87116488A
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German (de)
French (fr)
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EP0282640B1 (en
Inventor
Michel Aimé
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.)
Inventio AG
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Inventio AG
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Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to AT87116488T priority Critical patent/ATE66896T1/en
Publication of EP0282640A1 publication Critical patent/EP0282640A1/en
Application granted granted Critical
Publication of EP0282640B1 publication Critical patent/EP0282640B1/en
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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • F21V9/12—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light with liquid-filled chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B66B11/0233—Lighting systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/002—Lighting devices or systems producing a varying lighting effect using liquids, e.g. water

Definitions

  • the invention relates to an illumination device for illuminating a passenger compartment of elevator cars.
  • Such devices enable safe entry into the passenger compartment and operation of the elevator system before the journey, visual communication among the passengers during the journey and safe and orderly exit from the passenger compartment after the journey.
  • a lighting device according to US Pat. No. 4,126,210 is known in which a plurality of lights with tubular fluorescent lamps are integrated in the ceiling of an elevator car. A suspended, matted cover for scattering the light emitted by the tubular light sources forms the ceiling.
  • the disadvantage of the lighting device mentioned is that the matt cover cannot completely scatter the tubular light sources behind it. This creates rod-shaped light spots on the cabin ceiling and the lower luminance between the fluorescent lamps is visible in the form of shadows on the cabin ceiling. The light and shadow spots look unclean in the matt white cabin ceiling and impair the decor of the passenger compartment.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a lighting system for illuminating a passenger compartment of elevator cars, with which the decorative presentation of the passenger compartment interior is substantially improved with the simplest of means.
  • 1 denotes a lift shaft delimited by a shaft wall 1.1 and shaft sliding doors 1.2.
  • a counterweight 2 and an elevator car 3 with car sliding doors 3.1, car walls 3.2, a car ceiling 3.3 and a car floor 3.4 are guided in it.
  • a mounting duct 3.5 is let into a cabin wall 3.2 and is delimited by a duct cover 3.6 and a duct wall 3.7.
  • the mounting channel 3.5 serves to accommodate a cabin panel 3.8 and a lighting system 4.
  • the latter has a liquid filter 4.1 with chambers 4.14 delimited by transparent surfaces 4.11, a surround 4.12 and a seal 4.13, in which immiscible liquids 4.15 are enclosed.
  • the lighting system also includes 4 lights 4.2; 4.3, which essentially consists of light sources 4.21; 4.31, reflectors 4.22; 4.32 and a bracket 4.4 exist.
  • 4.23 denotes the light emission of the luminaire 4.2
  • 4.33 denotes the light emission of the luminaire 4.3.
  • the mounting channel 3.5 has openings at the top and bottom. Passengers 6 enter or leave a passenger space 7 via an elevator entrance / exit 8.
  • the lighting system 4 Thanks to the compact design of the lighting system 4 according to the invention, it has become possible to arrange it on at least one cabin wall 3.2 and / or on the mounting channel 3.5, which is usually present and accommodates cage and control elements. Even with recessed installation in a cabin wall 3.2 or in the assembly channel 3.5, the lighting system 4 guarantees complete illumination of the passenger compartment 7. It is indirectly illuminated on the one hand by the cabin ceiling 3.3 illuminated by the lower lamp 4.2, and on the other hand when the lighting system 4 is installed in the assembly channel 3.5 by the upper lamp 4.3 in the vicinity of the car panel 3.8 and the elevator entrance / exit 8 directly illuminated. Both lights 4.2; 4.3 are with reflectors 4.22; 4.32 equipped with the light distribution curves necessary to achieve optimal lighting.
  • the lights 4.2; 4.3 a liquid filter 4.1 upstream. Upward / downward movements of the elevator car 3 trigger a convective movement of the differently colored, at least two transparent, immiscible liquids 4.15 enclosed in the chamber 4.14. The absorption characteristic of the liquid filter 4.1 is thereby changed depending on the current stratification of the liquids 4.15.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

The lighting device (4) is arranged on at least one car wall (3.2) and/or on the assembly conduit running in the car wall (3.2) and intended for accommodating the car indicator board (3.8) and cabling. The lighting device (4) has on the one hand light radiation (4.23) for indirectly illuminating the passenger space and on the other hand, if the lighting device (4) is arranged on the assembly conduit, light radiation (4.33) for directly illuminating the surroundings of car indicator board (3.8) and lift entrance/exit. To produce decorative, variable illumination effects, the lighting device (4) has a liquid filter with various coloured, non-miscible liquids. The upward/downward travel of the lift car triggers a convective movement of the liquids, which in turn continuously changes the absorption characteristic of the liquid filter. <IMAGE>

Description

Die Erfindung betrifft eine Beleuchtungseinrichtung zur Beleuchtung eines Passagierraumes von Aufzugskabinen.The invention relates to an illumination device for illuminating a passenger compartment of elevator cars.

Solche Einrichtungen ermöglichen vor der Fahrt ein sicheres Betreten des Passagierraumes und Bedienen der Aufzugsanlage, während der Fahrt eine visuelle Kommunikation unter den Passagieren und nach der Fahrt ein sicheres, geordnetes Verlassen des Passagierraumes.Such devices enable safe entry into the passenger compartment and operation of the elevator system before the journey, visual communication among the passengers during the journey and safe and orderly exit from the passenger compartment after the journey.

Es ist eine Beleuchtungseinrichtung gemäss US-PS 4 126 210 bekannt, bei der mehrere Leuchten mit rohrförmigen Leuchtstofflampen in der Decke einer Aufzugskabine integriert sind. Eine heruntergehängte, mattierte Abdeckung zur Streuung des von den rohrförmigen Lichtquellen ausgesandten Lichtes bildet den Deckenabschluss.A lighting device according to US Pat. No. 4,126,210 is known in which a plurality of lights with tubular fluorescent lamps are integrated in the ceiling of an elevator car. A suspended, matted cover for scattering the light emitted by the tubular light sources forms the ceiling.

Der Nachteil der genannten Beleuchtungseinrichtung liegt darin, dass die mattierte Abdeckung das von den dahinterliegenden, rohrförmigen Lichtquellen nicht vollständig zu streuen vermag. Dadurch entstehen an der Kabinendecke stabförmige Lichtflecken und die zwischen den Leuchtstofflampen geringere Leuchtdichte ist an der Kabinendecke in Form von Schatten sichtbar. Die Licht-, Schattenflecken wirken in der mattweissen Kabinendecke unsauber und beeinträchtigen das Dekor des Passagierraumes.The disadvantage of the lighting device mentioned is that the matt cover cannot completely scatter the tubular light sources behind it. This creates rod-shaped light spots on the cabin ceiling and the lower luminance between the fluorescent lamps is visible in the form of shadows on the cabin ceiling. The light and shadow spots look unclean in the matt white cabin ceiling and impair the decor of the passenger compartment.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, ein Beleuchtungssystem zur Beleuchtung eines Passagierraumes von Aufzugskabinen zu schaffen, mit dem die dekorative Aufmachung des Passagierrauminterieurs mit einfachsten Mitteln wesentlich verbessert wird.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of creating a lighting system for illuminating a passenger compartment of elevator cars, with which the decorative presentation of the passenger compartment interior is substantially improved with the simplest of means.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass durch die Anordnung des erfindungsgemässen Beleuchtungssystems an Wänden von Aufzugskabinen dekorative, dynamische Beleuchtungseffekte erzielt werden. Ein weiterer Vorteil der Erfindung besteht darin, dass die Beleuchtungseffekte die Bewegung der Aufzugskabine anzeigen.The advantages achieved by the invention can essentially be seen in the fact that decorative, dynamic lighting effects are achieved by arranging the lighting system according to the invention on the walls of elevator cars. Another advantage of the invention is that the lighting effects indicate the movement of the elevator car.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert. Es zeigen:

  • Fig. 1 einen Grundriss einer in einem Aufzugsschacht geführten, mit einem in einer Kabinenwand und in einem Montagekanal angebrachten Beleuchtungssystem versehenen Aufzugskabine bei Stockwerkhalt,
  • Fig. 2 einen Aufriss eines Passagierraumes einer Aufzugskabine mit einem erfindungsgemässen Beleuchtungssystem und
  • Fig. 3 einen Aufbau des Beleuchtungssystems und dessen Anordnung in einem Montagekanal.
The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment. Show it:
  • 1 shows a floor plan of an elevator car guided in an elevator shaft and provided with a lighting system installed in a cabin wall and in an assembly channel with the floor held,
  • 2 shows an elevation of a passenger compartment of an elevator car with an inventive lighting system and
  • Fig. 3 shows a structure of the lighting system and its arrangement in an assembly channel.

In den Fig. 1 bis 3 ist mit 1 ein durch eine Schachtwand 1.1 und Schachtschiebetüren 1.2 abgegrenzter Liftschacht bezeichnet. In ihm wird ein Gegengewicht 2 sowie eine Aufzugskabine 3 mit Kabinenschiebetüren 3.1, Kabinenwänden 3.2, einer Kabinendecke 3.3 und einem Kabinenboden 3.4 geführt. In einer Kabinenwand 3.2 ist ein Montagekanal 3.5 eingelassen, der durch eine Kanalabdeckung 3.6 und einer Kanalwand 3.7 abgegrenzt ist. Der Montagekanal 3.5 dient zur Aufnahme eines Kabinentableaus 3.8 und eines Beleuchtungssystems 4. Letzteres weist ein Flüssigkeitsfilter 4.1 mit durch transparente Flächen 4.11, einer Umfassung 4.12 und einer Abdichtung 4.13 begrenzte Kammern 4.14 auf, in denen nicht mischbare Flüssigkeiten 4.15 eingeschlossen sind.1 to 3, 1 denotes a lift shaft delimited by a shaft wall 1.1 and shaft sliding doors 1.2. A counterweight 2 and an elevator car 3 with car sliding doors 3.1, car walls 3.2, a car ceiling 3.3 and a car floor 3.4 are guided in it. A mounting duct 3.5 is let into a cabin wall 3.2 and is delimited by a duct cover 3.6 and a duct wall 3.7. The mounting channel 3.5 serves to accommodate a cabin panel 3.8 and a lighting system 4. The latter has a liquid filter 4.1 with chambers 4.14 delimited by transparent surfaces 4.11, a surround 4.12 and a seal 4.13, in which immiscible liquids 4.15 are enclosed.

Ausserdem gehören dem Beleuchtungssystem 4 Leuchten 4.2; 4.3 an, die im wesentlichen aus Lichtquellen 4.21; 4.31, Reflektoren 4.22; 4.32 und einem Haltebügel 4.4 bestehen. Mit 4.23 ist die Lichtabstrahlung der Leuchte 4.2, mit 4.33 ist die Lichtabstrahlung der Leuchte 4.3 bezeichnet. Zur Belüftung 5 des Beleuchtungssystems 4 weist der Montagekanal 3.5 oben und unten Öffnungen auf. Passagiere 6 betreten oder verlassen einen Passagierraum 7 über einen Aufzugs-Ein-/Ausgang 8.The lighting system also includes 4 lights 4.2; 4.3, which essentially consists of light sources 4.21; 4.31, reflectors 4.22; 4.32 and a bracket 4.4 exist. 4.23 denotes the light emission of the luminaire 4.2, 4.33 denotes the light emission of the luminaire 4.3. For ventilation 5 of the lighting system 4, the mounting channel 3.5 has openings at the top and bottom. Passengers 6 enter or leave a passenger space 7 via an elevator entrance / exit 8.

Dank der kompakten Bauweise des erfindungsgemässen Beleuchtungssystems 4 ist es möglich geworden, es an mindestens einer Kabinenwand 3.2 und/oder an dem üblicherweise vorhandenen, Kablage und Steuerorgane aufnehmenden Montage­kanal 3.5 anzuordnen. Auch bei versenkter Einbauweise in einer Kabinenwand 3.2 oder im Montagekanal 3.5 garantiert das Beleuchtungssystem 4 eine vollständige Ausleuchtung des Passagierraumes 7. Er wird einerseits von der von der unteren Leuchte 4.2 angestrahlten Kabinendecke 3.3 indirekt beleuchtet, andererseits bei Einbau des Beleuchtungssystems 4 in den Montagekanal 3.5 von der oberen Leuchte 4.3 in der Umgebung des Kabinentableaus 3.8 und des Aufzugs-Ein-/Ausgangs 8 direkt beleuchtet. Beide Leuchten 4.2; 4.3 sind mit Reflektoren 4.22; 4.32 ausgerüstet, die die zur Erzielung einer optimalen Beleuchtung notwendigen Lichtverteilungskurven aufweisen. Als Lichtquellen 4.21; 4.31 sind Halogen- oder Entladungslampen mit den entsprechenden Lichtleistungen vorgesehen. Zur Erzeugung von dekorativen Beleuchtungseffekten wird den Leuchten 4.2; 4.3 ein Flüssigkeitsfilter 4.1 vorgeschaltet. Aufwärts-/Abwärtsfahrten der Aufzugskabine 3 lösen eine konvektive Bewegung der verschieden farbigen, mindestens zwei in der Kammer 4.14 eingeschlossenen, transparenten, nicht mischbaren Flüssigkeiten 4.15 aus. Die Absorptionscharakteristik des Flüssigkeitsfilters 4.1 wird dadurch je nach momentaner Schichtung der Flüssigkeiten 4.15 verändert.Thanks to the compact design of the lighting system 4 according to the invention, it has become possible to arrange it on at least one cabin wall 3.2 and / or on the mounting channel 3.5, which is usually present and accommodates cage and control elements. Even with recessed installation in a cabin wall 3.2 or in the assembly channel 3.5, the lighting system 4 guarantees complete illumination of the passenger compartment 7. It is indirectly illuminated on the one hand by the cabin ceiling 3.3 illuminated by the lower lamp 4.2, and on the other hand when the lighting system 4 is installed in the assembly channel 3.5 by the upper lamp 4.3 in the vicinity of the car panel 3.8 and the elevator entrance / exit 8 directly illuminated. Both lights 4.2; 4.3 are with reflectors 4.22; 4.32 equipped with the light distribution curves necessary to achieve optimal lighting. As light sources 4.21; 4.31 halogen or discharge lamps with the corresponding light outputs are provided. To create decorative lighting effects, the lights 4.2; 4.3 a liquid filter 4.1 upstream. Upward / downward movements of the elevator car 3 trigger a convective movement of the differently colored, at least two transparent, immiscible liquids 4.15 enclosed in the chamber 4.14. The absorption characteristic of the liquid filter 4.1 is thereby changed depending on the current stratification of the liquids 4.15.

Claims (7)

1. Beleuchtungseinrichtung zur Beleuchtung eines Passagierraumes (7) von Aufzugskabinen (3),
dadurch gekennzeichnet,
- dass ein Beleuchtungssystem (4) an mindestens einer Kabinenwand (3.2) und/oder an einem Montagekanal (3.5) angeordnet ist,
- dass das Beleuchtungssystem (4) mindestens eine Leuchte (4.2; 4.3) aufweist und
- dass das Beleuchtungssystem (4) zur Erzeugung von dekorativen Beleuchtungseffekten mindestens ein Flüssigkeitsfilter (4.1) aufweist.1. lighting device for lighting a passenger compartment (7) of elevator cars (3),
characterized by
- that a lighting system (4) is arranged on at least one cabin wall (3.2) and / or on an assembly channel (3.5),
- That the lighting system (4) has at least one lamp (4.2; 4.3) and
- That the lighting system (4) for generating decorative lighting effects has at least one liquid filter (4.1). 2. Beleuchtungseinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Leuchte (4.2; 4.3) eine punktförmige Lichtquelle (4.21; 4.31) aufweist.2. Lighting device according to claim 1,
characterized by
that the lamp (4.2; 4.3) has a point light source (4.21; 4.31). 3. Beleuchtungseinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Leuchte (4.2; 4.3) eine rohrförmige Lichtquelle (4.21; 4.31) aufweist.3. Lighting device according to claim 1,
characterized by
that the lamp (4.2; 4.3) has a tubular light source (4.21; 4.31). 4. Beleuchtungseinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Leuchte (4.2; 4.3) zum Zusammenwirken mit der Lichtquelle (4.21; 4.31), zum Bündeln und zur Lenkung des Lichtstromes derselben einen geeigneten Reflektor (4.22; 4.32) aufweist.4. Lighting device according to claim 1,
characterized by
that the lamp (4.2; 4.3) has a suitable reflector (4.22; 4.32) for interacting with the light source (4.21; 4.31), for bundling and for directing the luminous flux thereof. 5. Beleuchtungseinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass jede Leuchte (4.2; 4.3) ein eigenes Flüssigkeitsfilter (4.1) aufweist und jede Leuchte (4.2; 4.3) unabhängig von der anderen angeordnet ist.5. Lighting device according to claim 1,
characterized by
that each lamp (4.2; 4.3) has its own liquid filter (4.1) and each lamp (4.2; 4.3) is arranged independently of the other. 6. Beleuchtungseinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass das Flüssigkeitsfilter (4.1) mindestens eine Kammer (4.14) mit mindestens zwei verschieden farbigen, transparenten, nicht mischbaren Flüssigkeiten (4.15) aufweist.6. Lighting device according to claim 1,
characterized by
that the liquid filter (4.1) has at least one chamber (4.14) with at least two differently colored, transparent, immiscible liquids (4.15). 7. Beleuchtungseinrichtung nach Anspruch 6,
dadurch gekennzeichnet,
dass die Kammer (4.14) von zwei transparenten, auf Abstand gehaltenen, flüssigkeitsdicht abgeschlossenen Flächen (4.11) gebildet wird.7. Lighting device according to claim 6,
characterized by
that the chamber (4.14) is formed by two transparent, spaced, liquid-tightly sealed surfaces (4.11).
EP87116488A 1987-03-16 1987-11-09 Lighting device to decoratively illuminate the interior of passenger lift cars Expired - Lifetime EP0282640B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87116488T ATE66896T1 (en) 1987-03-16 1987-11-09 LIGHTING SYSTEM FOR DECORATIVE LIGHTING OF THE PASSENGER SPACE OF ELEVATOR CABINS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH97087 1987-03-16
CH970/87 1987-03-16

Publications (2)

Publication Number Publication Date
EP0282640A1 true EP0282640A1 (en) 1988-09-21
EP0282640B1 EP0282640B1 (en) 1991-09-04

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ID=4199436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116488A Expired - Lifetime EP0282640B1 (en) 1987-03-16 1987-11-09 Lighting device to decoratively illuminate the interior of passenger lift cars

Country Status (4)

Country Link
EP (1) EP0282640B1 (en)
AT (1) ATE66896T1 (en)
DE (1) DE3772752D1 (en)
ES (1) ES2026509T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999033743A1 (en) * 1997-12-23 1999-07-08 Kone Corporation Elevator car
EP2017215A1 (en) * 2007-07-16 2009-01-21 Inventio Ag Wall cladding and lift car with such a wall cladding
EP2017214A1 (en) * 2007-07-16 2009-01-21 Inventio Ag Illumination device and lift cars with such an illumination device
US10836609B2 (en) 2015-03-05 2020-11-17 Otis Elevator Company Elevator car

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2051190A1 (en) * 1970-10-19 1972-04-20 Remy E Rotatable color filter disc
US4126210A (en) * 1976-07-14 1978-11-21 Westinghouse Electric Corp. Elevator car with adjustable illumination level and distribution patterns

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2051190A1 (en) * 1970-10-19 1972-04-20 Remy E Rotatable color filter disc
US4126210A (en) * 1976-07-14 1978-11-21 Westinghouse Electric Corp. Elevator car with adjustable illumination level and distribution patterns

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999033743A1 (en) * 1997-12-23 1999-07-08 Kone Corporation Elevator car
EP2017215A1 (en) * 2007-07-16 2009-01-21 Inventio Ag Wall cladding and lift car with such a wall cladding
EP2017214A1 (en) * 2007-07-16 2009-01-21 Inventio Ag Illumination device and lift cars with such an illumination device
US10836609B2 (en) 2015-03-05 2020-11-17 Otis Elevator Company Elevator car

Also Published As

Publication number Publication date
ES2026509T3 (en) 1992-05-01
DE3772752D1 (en) 1991-10-10
ATE66896T1 (en) 1991-09-15
EP0282640B1 (en) 1991-09-04

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