EP0648972B1 - Leuchte mit verstellbarer Optik - Google Patents

Leuchte mit verstellbarer Optik Download PDF

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Publication number
EP0648972B1
EP0648972B1 EP94202883A EP94202883A EP0648972B1 EP 0648972 B1 EP0648972 B1 EP 0648972B1 EP 94202883 A EP94202883 A EP 94202883A EP 94202883 A EP94202883 A EP 94202883A EP 0648972 B1 EP0648972 B1 EP 0648972B1
Authority
EP
European Patent Office
Prior art keywords
axis
section
luminaire
reflector
parallel
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
EP94202883A
Other languages
English (en)
French (fr)
Other versions
EP0648972A1 (de
Inventor
Peter Société Civile S.P.I.D. Holten
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.)
Compagnie Philips Eclairage
Koninklijke Philips NV
Original Assignee
Compagnie Philips Eclairage
Koninklijke Philips Electronics NV
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 Compagnie Philips Eclairage, Koninklijke Philips Electronics NV filed Critical Compagnie Philips Eclairage
Publication of EP0648972A1 publication Critical patent/EP0648972A1/de
Application granted granted Critical
Publication of EP0648972B1 publication Critical patent/EP0648972B1/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
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
    • 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

Definitions

  • the present invention relates to a luminaire for a lamp of the linear type mounted in a fixed position, provided with a reflective profile, and comprising at least one screen profile of a type deflecting light laterally, placed in the luminous flux of the lamp so movable around an axis of rotation parallel to its longitudinal direction and having a dimension and a position such that it can intercept part of the light flux returned by the reflective profile.
  • a luminaire can be used for lighting a work surface or horizontally or vertically oriented objects, in particular the lighting of automobile assembly lines which combines an asymmetrical beam with an anti-light suppression angle. glare, shop lighting, sports hall lighting, vertical lighting of bulletin boards or school boards, etc.
  • the object of the invention is therefore to generate multi-zone lighting adjustable in a wide range of angles, with independent glare control, adjustable also in a wide range of angles.
  • the reflector profile said main reflector, having a focal axis, it is positioned in such a way that the lamp is substantially placed on this focal axis, the axis of rotation of the screen profile substantially coinciding with this focal axis .
  • the screen profile is transparent and consists of an assembly of elementary prisms each of which is parallel to the longitudinal direction of the profile.
  • the screen profile is an opaque wall made up of elementary prisms side by side, each of which is parallel to the longitudinal direction of the profile, and the surface of which receives light is treated as a mirror.
  • the screen profile consists of a louvre with lamellae parallel to the longitudinal direction of the main reflector, lamellae which are inclined relative to a plane passing through the axis of rotation of the louvre.
  • the surface of the louvre slats which receive the light is treated in a mirror.
  • the section of the screen profile is an arc of a circle, the center of which is situated substantially on its axis of rotation.
  • the elements of the screen profile are all permanently at the same distance from the lamp, and produce a regular effect.
  • the main reflector is also advantageously mobile, around an axis parallel to its own longitudinal direction. The rotation of the main reflector allows even more flexibility in adjusting the direction and distribution of the lighting.
  • the luminaire further comprising a housing, it is advantageously provided with a closing profile parallel to the longitudinal direction of the main reflector, to close a possible vacuum between this reflector and the housing, and means for rotating this closing profile around an axis coinciding with the axis of rotation of the screen profile, said closure profile having a cross section in an arc of a circle, the center of which is located on the axis of rotation.
  • This closing profile can be placed in the path of the light beam leaving the main reflector, in addition to the screen profile, in order to avoid certain types of glare and it can also be used to mask a vacuum between the reflector and a housing containing this last.
  • Figure 1 shows in cross section an alternative embodiment of a luminaire according to the invention.
  • Figure 2 shows in cross section another alternative embodiment of a luminaire according to the invention.
  • the device shown in FIG. 1 is designed for a lamp of the linear type, for example one of those known under the references TL, PL, Halogen, SON-T. It includes a housing 13 which contains and protects the optical assembly. It is provided with a lamp 2 of circular section mounted in a fixed position in a reflective profile 1 whose surface of the concave face is a mirror producing concentrated lighting, that is to say whose angular width is 2 ⁇ 20 ° or 40 °, which is narrow in the usual sense of 150 mm wide optics for TL or PL lamps, and is ideal for most asymmetrical applications. This results in uniform illumination in planes at a short distance from the luminaire.
  • this reflective profile 1 has a parabolic section with a focal distance of approximately 0.8 D, "D" being the diameter of the section of the lamp 2.
  • the axis of the lamp, including the supports are attached to the reflector, coincides with the focal line of the reflector.
  • the latter has a recessed part 4 above the lamp, which is concave or flat, which aims to recover more light above the lamp.
  • This reflector is for example made of extruded metal. Means, not shown but that the skilled person can easily realize, allow its rotation about an axis parallel to its own longitudinal direction (perpendicular to the plane of the figure).
  • the opening of the housing is provided wider than that of the reflector, so that no part of the housing obscures the light leaving the reflector in the different possible positions of the latter.
  • the reflector is rotated to the maximum in a clockwise direction and therefore a vacuum 12 is located on the right between the edge of the reflector 1 and the edge of the housing 13; in figure 2 it is the opposite: the vacuum is on the left.
  • a closure profile 11 is provided, parallel to the longitudinal direction of the reflector profile. Means for rotating this closure profile around the axis 7 coinciding with the center of the lamp, and are constituted for example by arms 10 placed at each end of the closure profile and whose axis of rotation is fixed to the reflector.
  • this closure profile 11 can have two uses: it can be placed in the path of the light beam leaving the reflector (although this practice loses light) in order to avoid glare in a specific place, and it can also be placed as shown in the figures, to hide the void between the housing and the reflector.
  • this closure profile can be an integral part of the reflector profile 1, as indicated by the references 14 in FIG. 2; in this case, its function is only to mask the void between the housing and the reflector.
  • the luminaire is here provided with a screen profile 3 consisting of a plurality of prisms made of a transparent material, each of which is parallel to the longitudinal direction of the reflector.
  • An articulation allows the rotation of this set of prisms around the axis 7, constituted for example by arms 5 placed at each end of the prismatic section 3, and whose axis of rotation is fixed to the reflector.
  • the prisms are supported, in the plane of the figure, on a virtual line which is an arc of a circle and the center of this arc of a circle coincides with the axis of rotation 7.
  • the orientation of the beam is influenced and, once the luminaire is installed, it is easy to change the setting if the conditions change.
  • the prisms on the upper surface (in the figure) of the screen 3 are for example aluminized or silvered so as to make the surface reflective like a mirror. Then the light redirection effect is obtained by a second reflection on the reflector 1.
  • the upper surface (in the figure) of the screen 3 could be smooth and treated in matt black. Then there would be no light redirection effect but only an anti-glare effect. In addition, light would be lost.
  • Transversal lamellae 15 can be provided to avoid glare in planes of vision parallel to the axis of the lamp.
  • the luminaire shown in Figure 2 comprises like that described above a housing 13, a reflector 1, and a lamp 2. It is provided with a screen profile consisting of a louvre 8 with lamellae 9 which are preferably inclined in a direction parallel to the plane of symmetry of the reflector 1, and the surface of the louvre slats which receive the light (on the left in the figure) is mirrored.
  • An articulation allows the rotation of this set of strips around the axis 7, constituted for example by arms 6 placed at each end of the louvre 8, and whose axis of rotation is fixed to the reflector.
  • the louvre could also be fixed to transverse strips 15.
  • the slats are supported, in the plane of the figure, on a virtual line which is an arc of a circle and the center of this arc of a circle coincides with the axis of rotation 7.
  • the surface of the set of prisms 3 or of the louvre 8 is such that, considered in the transverse direction with respect to the reflector, it only intercepts a part of the light flux produced by the luminaire. In other words, the angle at which we see these elements from the lamp is smaller than the angle at which we see the reflector outlet.
  • the rotation of the screen profile or of the closure profile could also be obtained from curvilinear slides in which the ends of the profiles would slide.

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)
  • Optical Elements Other Than Lenses (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Claims (8)

  1. Leuchte für eine Lampe (2) linearen, in fester Position montierten Typs, mit einem Reflektor (1) versehen, und die mindestens ein Schirmprofil (3, 8) eines das Licht seitlich umleitenden Typs enthält, in dem Lichtstrahl der Lampe beweglich um eine Rotationsachse parallel zu ihrer Längsrichtung angebracht, und mit einer derartigen Dimension und Position, daß sie einen Teil des vom Reflektorprofil zurückgeworfenen Lichtstrahls auffangen kann, dadurch gekennzeichnet, daß das Reflektorprofil, der sogenannte Hauptreflektor, der über eine Fokalachse (7) verfügt, derart ausgerichtet ist, daß die Lampe deutlich über dieser Fokalachse ausgerichtet wird, während die Rotationsachse des Schirmprofils (3, 8) deutlich mit dieser Fokalachse übereinstimmt.
  2. Leuchte nach Anspruch 1, dadurch gekennzeichnet, daß das Schirmprofil (3) transparent ist und aus einem Zusammenbau elementarer Prismen gebildet wird, die jeweils parallel zur Längsrichtung des Profils liegen.
  3. Leuchte nach Anspruch 1, dadurch gekennzeichnet, daß das Schirmprofil (3) eine Wand ist, die aus elementaren Prismen Seite an Seite gebildet wird, die jeweils parallel zur Längsrichtung des Profils liegen, und deren Oberfläche, die das Licht erhält, als Spiegel verarbeitet ist.
  4. Leuchte nach Anspruch 1, dadurch gekennzeichnet, daß das Schirmprofil (8) aus einem Raster gebildet wird, mit parallelen Lamellen (9) in Längsrichtung des Hauptreflektors, wobei die Lamellen in bezug auf eine durch die Rotationsachse des Rasters verlaufenden Fläche geneigt sind.
  5. Leuchte nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, daß die Oberfläche der Lamellen (9) des Gitters, daß das Licht erhält, als Spiegel verarbeitet ist.
  6. Leuchte nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schnitt des Schirmprofils (3, 8) ein Kreisbogen ist, dessen Zentrum deutlich über seiner Rotationsachse liegt.
  7. Leuchte nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Hauptreflektor (1) ebenfalls beweglich ist, um eine zu seiner eigenen Längsrichtung parallelen Achse.
  8. Leuchte nach dem vorhergehenden Anspruch mit einem Gehäuse (13), dadurch gekennzeichnet, daß ist sie zudem mit einem Abschlußprofil (11) versehen ist, parallel zur Längsrichtung des Hauptreflektors (1), um einen eventuellen Hohlraum (12) zwischen dem Hauptreflektor und dem Gehäuse zu schließen, und mit Mitteln zur Rotation (10) dieses Abschlußprofils um eine mit der Rotationsachse (7) des Schirmprofils zusammenfallende Achse, während das besagte Abschlußprofil einen Querschnitt als Kreisbogen hat, dessen Zentrum auf der Rotationsachse liegt.
EP94202883A 1993-10-13 1994-10-05 Leuchte mit verstellbarer Optik Expired - Lifetime EP0648972B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9312188A FR2711220A1 (fr) 1993-10-13 1993-10-13 Luminaire à optique orientable.
FR9312188 1993-10-13

Publications (2)

Publication Number Publication Date
EP0648972A1 EP0648972A1 (de) 1995-04-19
EP0648972B1 true EP0648972B1 (de) 1999-01-07

Family

ID=9451791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94202883A Expired - Lifetime EP0648972B1 (de) 1993-10-13 1994-10-05 Leuchte mit verstellbarer Optik

Country Status (6)

Country Link
EP (1) EP0648972B1 (de)
AT (1) ATE175485T1 (de)
DE (1) DE69415761T2 (de)
DK (1) DK0648972T3 (de)
ES (1) ES2129103T3 (de)
FR (1) FR2711220A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019090822A1 (zh) * 2017-11-09 2019-05-16 安徽世林照明股份有限公司 一种可调光式的环绕顶灯及其灯光调节方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324854A (en) * 1997-05-02 1998-11-04 John Mfg Ltd Lantern
DE102005006758A1 (de) * 2005-02-15 2006-08-24 Norbert Wagner Beleuchtungseinrichtung mit einer Lichtquelle und einem Leuchtengehäuse
ITMI20050181U1 (it) * 2005-05-16 2006-11-17 Guzzini Illuminazione S P A I Dispositivo di illuminazione a distribuzione asimmetrica
GB2545017B (en) 2015-12-04 2018-02-28 Dyson Technology Ltd A lighting device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB653486A (en) * 1948-10-14 1951-05-16 R & A G Crossland Ltd Improvements relating to screens or reflectors for tubular electric lamps
CH473354A (de) * 1968-11-12 1969-05-31 Sulzer Ernst Blendschutzgehäuse für Beleuchtungen
DE9004579U1 (de) * 1990-04-23 1990-06-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Asymmetrisch strahlende Leuchte
DE4225386A1 (de) * 1992-07-31 1992-12-03 Siemens Ag Strahlerleuchte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019090822A1 (zh) * 2017-11-09 2019-05-16 安徽世林照明股份有限公司 一种可调光式的环绕顶灯及其灯光调节方法

Also Published As

Publication number Publication date
ATE175485T1 (de) 1999-01-15
EP0648972A1 (de) 1995-04-19
DE69415761T2 (de) 1999-07-01
FR2711220A1 (fr) 1995-04-21
ES2129103T3 (es) 1999-06-01
DE69415761D1 (de) 1999-02-18
DK0648972T3 (da) 1999-07-19

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