EP0194590A2 - Elongate lighting fixture with built-in reflector - Google Patents

Elongate lighting fixture with built-in reflector Download PDF

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Publication number
EP0194590A2
EP0194590A2 EP86102981A EP86102981A EP0194590A2 EP 0194590 A2 EP0194590 A2 EP 0194590A2 EP 86102981 A EP86102981 A EP 86102981A EP 86102981 A EP86102981 A EP 86102981A EP 0194590 A2 EP0194590 A2 EP 0194590A2
Authority
EP
European Patent Office
Prior art keywords
lamp
mirror
reflector
lighting fixture
built
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
EP86102981A
Other languages
German (de)
French (fr)
Other versions
EP0194590B1 (en
EP0194590A3 (en
Inventor
Wolfgang Dipl.-Ing. Wahle
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0194590A2 publication Critical patent/EP0194590A2/en
Publication of EP0194590A3 publication Critical patent/EP0194590A3/en
Application granted granted Critical
Publication of EP0194590B1 publication Critical patent/EP0194590B1/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • 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

Definitions

  • the invention relates to an elongated lamp with a built-in, asymmetrical .
  • Wall washer known. They have an extremely asymmetrical light distribution for the uniform illumination of vertical surfaces such as walls, shelves, sales counters.
  • the luminaires must be mounted at a certain distance from the vertical surface in order to achieve uniform illumination. This optimal installation distance is set at a ratio of 1: 3 to the suspension height or wall height. Due to structural conditions or subsequent changes, this requirement can practically often not be met and therefore no ideal lighting conditions are achieved.
  • the invention has for its object to improve a lamp of the type described above so that the luminous intensity index of each individual lamp can be optimally adapted to different suspension heights and mounting distances.
  • the lamp shown schematically in cross section in the single figure has an elongated box-shaped housing 1, on the one long side 1 a of which a fluorescent lamp 2 is preferably arranged. This is surrounded by a semicircular secondary mirror 3, which is followed by an approximately parabolically curved deflecting mirror 4 above a light exit opening 5 of the lamp.
  • the deflection mirror 4 is pivotally mounted on the longitudinal side 1b of the housing facing away from the lamp and, with its pivot axis 4a, also forms the boundary of the light exit opening on this side.
  • the light exit opening is limited by a bend 3a of the secondary mirror. This also prevents a direct view of the fluorescent lamp from below to the level indicated by an arrow 6.
  • the deflecting mirror 4 engages with its free edge 4b above the fluorescent lamp 2 under the secondary mirror 3. This ensures that no greater luminous flux losses occur when the deflecting mirror is pivoted into the position 4 'indicated in dashed lines.
  • the pivoting range of the deflecting mirror which can be ascertained within this range by means not shown, comprises an angle of approximately 15 °.
  • the luminous intensity distribution body of the luminaire can thus be changed such that the light emerging from the light exit opening approximately in the direction of arrow 5a optimally fulfills the respective lighting task.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

The lighting fixture has a reflector with asymmetrical light distribution which surrounds a rod-shaped lamp (2). The reflector is formed by a fixed collecting reflector (3) encircling the lamp (2) in a semicircle, and an obliquely-radiating deflection mirror (4). The latter, in turn, can be pivoted about an axis (4a) extending in the longitudinal direction of the lighting fixture. The lighting fixture is preferably provided for being mounted on horizontal surfaces and is used for illuminating vertical surfaces. <IMAGE>

Description

Die Erfindung betrifft eine langgestreckte Leuchte mit eingebauter, eine asymmetrische.Lichtverteilung aufweisender Spiegeloptik für eine stabförmige Lampe, vorzugsweise zur Anbringung an horizontalen Ebenen für die Anstrahlung von vertikalen Flächen.The invention relates to an elongated lamp with a built-in, asymmetrical . Mirror optics with light distribution for a rod-shaped lamp, preferably for attachment to horizontal planes for illuminating vertical surfaces.

Derartige Leuchten sind als sogen. Wandfluter bekannt. Sie haben eine extrem asymmetrische Lichtverteilung zur gleichmäßigen Ausleuchtung senkrechter Flächen wie beispielsweise Wänden, Regalen, Verkaufstresen. Die Leuchten müssen dabei in einem bestimmten Abstand von der senkrechten Fläche montiert sein, um eine gleichmäßige Ausleuchtung zu erhalten. Dieser optimale Montageabstand ist etwa im Verhältnis 1 : 3 zur Aufhängehöhe bzw. Wandhöhe festgelegt. Aufgrund baulicher Gegebenheiten oder nachträglicher Änderungen läßt sich diese Forderung praktisch oft nicht verwirklichen und somit werden auch keine idealen Beleuchtungsverhältnisse erreicht.Such lights are so-called. Wall washer known. They have an extremely asymmetrical light distribution for the uniform illumination of vertical surfaces such as walls, shelves, sales counters. The luminaires must be mounted at a certain distance from the vertical surface in order to achieve uniform illumination. This optimal installation distance is set at a ratio of 1: 3 to the suspension height or wall height. Due to structural conditions or subsequent changes, this requirement can practically often not be met and therefore no ideal lighting conditions are achieved.

Der Erfindung liegt die Aufgabe zugrunde, eine Leuchte der vorbeschriebenen Art so zu verbessern, daß die Lichtstärkeindikatrix jeder einzelnen Leuchte an unterschiedliche Aufhängehöhen und Montageabstände optimal angepaßt werden kann.The invention has for its object to improve a lamp of the type described above so that the luminous intensity index of each individual lamp can be optimally adapted to different suspension heights and mounting distances.

Die Lösung dieser Aufgabe ergibt sich aus den kennzeichnenden Merkmalen des Anspruchs 1. So lassen sich in vorteilhafter Weise unterschiedliche Beleuchtungsaufgaben und Montagearten mit nur einem Leuchtentyp verwirklichen. Weiterbildungen und Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The solution to this problem arises from the characterizing features of claim 1. Thus, different lighting tasks and types of installation can be realized in an advantageous manner with only one type of light. Further developments and refinements of the invention are specified in the subclaims.

Anhand der Zeichnung sei die Erfindung nachstehend näher erläutert.The invention is explained in more detail below with the aid of the drawing.

Die in der einzigen Figur schematisch im Querschnitt gezeigte Leuchte hat ein langgestrecktes kastenförmiges Gehäuse 1, an dessen einer Längsseite 1a vorzugsweise eine Leuchtstofflampe 2 angeordnet ist. Diese ist von einem halbkreisförmigen Fangspiegel 3 umgeben, an dem sich ein annähernd parabolisch gekrümmter Umlenkspiegel 4 oberhalb einer Lichtaustrittsöffnung 5 der Leuchte anschließt. Der Umlenkspiegel 4 ist an der der Lampe abgekehrten Längsseite 1b des Gehäuses schwenkbar gelagert und bildet mit seiner Schwenkachse 4a zugleich die Begrenzung der Lichtaustrittsöffnung auf dieser Seite. An der gegenüberliegenden Seite wird die Lichtaustrittsöffnung durch eine Abwinklung 3a des Fangspiegels begrenzt. Damit ist auch der direkte Blick auf die Leuchtstofflampe von unten bis zu der durch einen Pfeil 6 angezeigten Ebene verwehrt.The lamp shown schematically in cross section in the single figure has an elongated box-shaped housing 1, on the one long side 1 a of which a fluorescent lamp 2 is preferably arranged. This is surrounded by a semicircular secondary mirror 3, which is followed by an approximately parabolically curved deflecting mirror 4 above a light exit opening 5 of the lamp. The deflection mirror 4 is pivotally mounted on the longitudinal side 1b of the housing facing away from the lamp and, with its pivot axis 4a, also forms the boundary of the light exit opening on this side. On the opposite side, the light exit opening is limited by a bend 3a of the secondary mirror. This also prevents a direct view of the fluorescent lamp from below to the level indicated by an arrow 6.

Der Umlenkspiegel 4 greift mit seiner freien Kante 4b oberhalb der Leuchtstofflampe 2 unter den Fangspiegel 3. Dadurch ist sichergestellt, daß beim Verschwenken des Umlenkspiegels bis in die in Strichlinien angedeutete Stellung 4' keine größeren Lichtstromverluste auftreten. Der Schwenkbereich des Umlenkspiegels, der durch nicht dargestellte Mittel innerhalb dieses Bereiches jeweils feststellbar ist, umfaßt einen Winkeloe von etwa 15°. Damit läßt sich der Lichtstärkeverteilungskörper der Leuchte so verändern, daß das aus der Lichtaustrittsöffnung etwa in Richtung des Pfeiles 5a austretende Licht optimal die jeweilige Beleuchtungsaufgabe erfüllt.The deflecting mirror 4 engages with its free edge 4b above the fluorescent lamp 2 under the secondary mirror 3. This ensures that no greater luminous flux losses occur when the deflecting mirror is pivoted into the position 4 'indicated in dashed lines. The pivoting range of the deflecting mirror, which can be ascertained within this range by means not shown, comprises an angle of approximately 15 °. The luminous intensity distribution body of the luminaire can thus be changed such that the light emerging from the light exit opening approximately in the direction of arrow 5a optimally fulfills the respective lighting task.

Claims (4)

1. Langgestreckte Leuchte mit eingebauter, eine asymmetrische Lichtverteilung aufweisender Spiegeloptik für eine stabförmige Lampe, vorzugsweise zur Anbringung an horizontalen Ebenen für die Anstrahlung von vertikalen Flächen, dadurch gekennzeichnet, daß die Spiegeloptik aus einem feststehenden, die Lampe (2) etwa halbkreisförmig umgreifenden Fangspiegel (3) und einem schrägstrahlenden, um eine in Leuchtenlängsrichtung verlaufende Achse (4a) verschwenkbaren Umlenkspiegel (4) gebildet ist.1. Elongated luminaire with built-in, asymmetrical light distribution having mirror optics for a rod-shaped lamp, preferably for attachment to horizontal planes for illuminating vertical surfaces, characterized in that the mirror optics from a fixed, the lamp (2) around semicircular encompassing secondary mirror ( 3) and an obliquely radiating deflection mirror (4) which is pivotable about an axis (4a) extending in the longitudinal direction of the lamp. 2. Leuchte nach Anspruch 1, dadurch gekennzeichnet, daß die Schwenkachse (4a) des Umlenkspiegels (4) auf der der Lampe (2) abgekehrten Gehäuseseite (1b) angeordnet ist und die Grenze der Lichtaustrittsöffnung (5) bildet.2. Luminaire according to claim 1, characterized in that the pivot axis (4a) of the deflecting mirror (4) on the lamp (2) facing away from the housing side (1b) is arranged and forms the boundary of the light exit opening (5). 3. Leuchte nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Umlenkspiegel (4) und der Fangspiegel (3) oberhalb der Lampe (2) übereinandergre.ifen.3. Luminaire according to claim 1 and 2, characterized in that the deflecting mirror (4) and the secondary mirror (3) above the lamp (2) overlap each other. 4. Leuchte nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der Schwenkbereich des Umlenkspiegels (4) einen Winkel (α) von etwa 15° umfaßt.4. Lamp according to claim 1 to 3, characterized in that the pivoting range of the deflecting mirror (4) comprises an angle (α) of about 15 °.
EP86102981A 1985-03-15 1986-03-06 Elongate lighting fixture with built-in reflector Expired - Lifetime EP0194590B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8507634U DE8507634U1 (en) 1985-03-15 1985-03-15 Elongated luminaire with built-in mirror optics
DE8507634U 1985-03-15

Publications (3)

Publication Number Publication Date
EP0194590A2 true EP0194590A2 (en) 1986-09-17
EP0194590A3 EP0194590A3 (en) 1988-07-06
EP0194590B1 EP0194590B1 (en) 1991-06-05

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ID=6778690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102981A Expired - Lifetime EP0194590B1 (en) 1985-03-15 1986-03-06 Elongate lighting fixture with built-in reflector

Country Status (2)

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EP (1) EP0194590B1 (en)
DE (2) DE8507634U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214285A (en) * 1988-01-20 1989-08-31 Light Years Ahead Ltd Space lighting
AT406506B (en) * 1997-08-18 2000-06-26 Bartenbach Christian LAMP
GB2365111A (en) * 2000-05-08 2002-02-13 Sylvan R Shemitz Designs Inc Adjustable distribution luminaire
WO2003021173A1 (en) * 2001-08-31 2003-03-13 Dr. Hönle AG Uv radiation device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3711366A1 (en) * 1987-04-04 1988-10-27 Pohlschroeder & Co Kg Louvered luminaire for workplaces
DE9004579U1 (en) * 1990-04-23 1990-06-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Asymmetrical luminaire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1497369A1 (en) * 1966-10-25 1969-06-04 Zumtobel Kg Elektrovertriebsge Electric lamp for hospital beds
DE3316000A1 (en) * 1983-05-03 1984-11-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Lighting fixture for an elongated light source

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1497369A1 (en) * 1966-10-25 1969-06-04 Zumtobel Kg Elektrovertriebsge Electric lamp for hospital beds
DE3316000A1 (en) * 1983-05-03 1984-11-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Lighting fixture for an elongated light source

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214285A (en) * 1988-01-20 1989-08-31 Light Years Ahead Ltd Space lighting
US5003445A (en) * 1988-01-20 1991-03-26 Light Years Ahead Limited Space lighting
GB2214285B (en) * 1988-01-20 1992-04-08 Light Years Ahead Ltd Space lighting
AT406506B (en) * 1997-08-18 2000-06-26 Bartenbach Christian LAMP
GB2365111A (en) * 2000-05-08 2002-02-13 Sylvan R Shemitz Designs Inc Adjustable distribution luminaire
US6652118B2 (en) 2000-05-08 2003-11-25 Sylvan R. Shemitz Designs, Inc. Asymmetric distribution luminaire
GB2365111B (en) * 2000-05-08 2004-12-15 Sylvan R Shemitz Designs Inc Adjustable distribution luminaire
US6860618B2 (en) 2000-05-08 2005-03-01 Sylvan R. Shemitz Designs, Inc. Asymmetric distribution luminaire
WO2003021173A1 (en) * 2001-08-31 2003-03-13 Dr. Hönle AG Uv radiation device

Also Published As

Publication number Publication date
EP0194590B1 (en) 1991-06-05
DE8507634U1 (en) 1985-11-14
EP0194590A3 (en) 1988-07-06
DE3679575D1 (en) 1991-07-11

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