EP0648971A1 - Lampe à dispositif réfléchissant auxiliaire ajustable en hauteur - Google Patents

Lampe à dispositif réfléchissant auxiliaire ajustable en hauteur Download PDF

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Publication number
EP0648971A1
EP0648971A1 EP94112151A EP94112151A EP0648971A1 EP 0648971 A1 EP0648971 A1 EP 0648971A1 EP 94112151 A EP94112151 A EP 94112151A EP 94112151 A EP94112151 A EP 94112151A EP 0648971 A1 EP0648971 A1 EP 0648971A1
Authority
EP
European Patent Office
Prior art keywords
reflector
secondary reflector
luminaire according
main reflector
main
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.)
Withdrawn
Application number
EP94112151A
Other languages
German (de)
English (en)
Inventor
Matthias Martin
Andreas Henrich
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.)
Wila Leuchten GmbH
Original Assignee
Wila Leuchten 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 Wila Leuchten GmbH filed Critical Wila Leuchten GmbH
Publication of EP0648971A1 publication Critical patent/EP0648971A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • 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
    • 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
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • F21V9/02—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for simulating daylight

Definitions

  • the invention relates to a luminaire with a rotationally symmetrical main reflector with a scoop-shaped cross-section, a lamp holder arranged essentially coaxially to the main reflector for receiving one or more illuminants and a secondary reflector device which is height-adjustable relative to or away from the main reflector and which has a secondary reflector facing the main reflector and one comprises downlight reflector pointing away from the lamp holder, the secondary reflector and the downlight reflector being arranged coaxially to the main reflector and having a central opening.
  • Such a lamp is known from DE-OS 2723145.
  • the lamp holder including the illuminant and the secondary reflector device are arranged on a common height-adjustable frame.
  • the purpose of this arrangement is to move the lamp relative to the main reflector, which also changes the position of the lamp relative to the focal point of the main reflector. This also changes the ratio of convergent and divergent radiation.
  • the central opening of the secondary reflector device and the size of the downlight reflector are chosen so that the secondary reflector does not reflect any light into the opening of the main reflector.
  • these lights have the disadvantage that they can only insufficiently produce a natural light impression that comes close to a daylight-like lighting situation.
  • auxiliary reflector device is arranged to be displaceable relative to the illuminant in order to adjust a proportion of diffuse and directed light.
  • the present invention now makes it possible to change the proportion of diffuse, that is to say reflected, light and directional light.
  • the present invention can take into account both the temporal and climatic-related changes in daylight situations and application-related requirements.
  • the secondary reflector and the downlight reflector are connected to one another at the edge of a common central opening. Firstly, this creates a compact unit and secondly the reflection surfaces of the two reflectors collide directly, as a result of which the light is reflected on the entire inner surface of the secondary reflector device.
  • the central opening has a cross section such that the illuminant can be guided through the central opening at a distance by the adjustment movement of the secondary reflector device.
  • This version is particularly inexpensive because the downlight reflector now emits the light from the light source directly downwards in an even larger area. As a result, an ever larger area of the reflection surface of the main reflector can be excluded from the reflection.
  • the illuminant is arranged essentially at the focal point of the main reflector.
  • the main reflector has a central receiving opening for receiving the lamp holder.
  • a further embodiment can achieve a situation in which the diffuse portion of the light is emitted essentially through the partially transparent secondary reflector. This is achieved in that the secondary reflector device has an uppermost position in which the outer edge of the secondary reflector lies essentially against the reflection surface of the main reflector. This effect can be intensified by the fact that the lamp is arranged in the uppermost position of the secondary reflector device essentially in the focal point of the downlight reflector.
  • the secondary reflector device comprises a guide linkage connected to the secondary reflector and / or downlight reflector, which extends through openings in the main reflector and on the back of the main reflector engages in an adjusting mechanism which shifts the height of the guide rod.
  • the guide linkage can do this be designed so filigree that the reflection is only slightly affected.
  • the adjustment mechanism can have a drive that can be controlled by a controller.
  • controller comprises a daylight-dependent sensor, so that the secondary reflector device can be adjusted according to the daylight situation.
  • the luminaire can then automatically adapt to the respective lighting conditions, which means that manual adjustment is not necessary.
  • the controller is a program-controlled controller that adjusts the secondary reflector device according to a predetermined program.
  • the luminaire setting can be regulated over a certain period of time.
  • the secondary reflector device can be adjustable in predetermined increments.
  • the ratio of directed to diffuse light in the uppermost position of the secondary reflector device is essentially 3: 1.
  • the ratio of directed to diffuse light can then advantageously be essentially 1: 3.
  • Such setting limits allow the lighting conditions provided by the luminaire to be achieved as a rule.
  • the embodiment shown here is a recessed ceiling light.
  • the present invention can also be designed as a surface-mounted or pendant lamp.
  • the luminaire according to the invention essentially comprises a rotationally symmetrical main reflector 1 with a scoop-shaped cross-section, a secondary reflector device 2 arranged below the main reflector, an essentially pot-shaped mounting housing 3 and a lamp socket 4 arranged coaxially with the main reflector 1 for use with a lamp 5.
  • the lamp 5 is preferably around a light bulb, but rod-shaped lamps can also be used.
  • the elevation 6 is also provided on its side surfaces with a reflective surface which continuously merges into the reflective surface of the main reflector 1.
  • a flange-like circumferential edge 8 is arranged on the main reflector and bears from the outside against a structure 9 surrounding the lamp as a screen.
  • the mounting housing 3 is preferably connected to the edge 8 of the main reflector 1. Lateral approaches 10, in which displaceable clamping claws 12 are guided by a screw 11, are arranged on the lateral surface of the mounting housing 3. The clamping claws 12 can be pressed onto the back of the structure 9, so that the entire lamp is fixed between the edge 8 and the clamping claws 12 in a bore in the structure 9.
  • main reflector 1 and displaceable secondary reflector device 2 can be attached to the assembly housing 3 in a plug-in or bayonet-like manner at any desired location.
  • the secondary reflector device 2 arranged coaxially to the main reflector 1 essentially comprises a partially transparent secondary reflector 13 facing the main reflector 1, which reflects part of the light from the illuminant 5 onto the main reflector 1 and transmits part of the light from the illuminant 5 and diffusely splits it, and one Downlight reflector 14, which reflects light from the illuminant 5 directly downwards.
  • the secondary reflector 13 and the downlight reflector 14 have a common central opening 15, at the edge of which these two reflectors are connected to one another. The cross section of the central opening 15 is selected so that the illuminant 5 can be passed through the central opening at a distance if the secondary reflector device 2 is moved coaxially to the main reflector 1 upwards or downwards.
  • the illuminant 5 is arranged in the focal point of the main reflector 1 so that parallel light is reflected from the main reflector 1 at least over a large area.
  • a guide rod 17 extending through openings 16 in the main reflector 1 is attached.
  • the secondary reflector device 2 is thus held relative to the main reflector 1 by the guide linkage 17 and guided in a height-displaceable manner.
  • the guide linkage 17 engages in an adjustment mechanism 18 arranged in the free space behind the main reflector 1, with which the guide linkage 17 can be moved up and down.
  • the usual mechanical adjustment mechanisms such as, for example, toothed rack and toothed wheel or spindle and nut, come into question for the interaction of guide linkage 17 and adjustment mechanism 18.
  • the adjustment mechanism 18 is usually assigned a controller, not shown, from which the adjustment mechanism 18 can be controlled.
  • the controller can be designed as a program-controlled controller that adjusts the secondary reflector device 2 in accordance with a predetermined program.
  • a daylight-dependent sensor can also be assigned to the controller, so that the secondary reflector device 2 can be adjusted according to the daylight situation.
  • the secondary reflector device 2 is in a lowermost position with respect to the main reflector 1.
  • An outer edge 19 of the secondary reflector 13 is at a distance A from the main reflector 1.
  • the guide linkage 17 is raised by the guide mechanism 18, which also causes the secondary reflector device 2 to move in the direction of the main reflector 1 adjusted.
  • the distance A 1 is already noticeably smaller with this setting, as can be seen in FIG.
  • the illuminant 5 has now been passed through the central opening and is now increasingly located in the area of the downlight reflector 14. This changes the light characteristic of the luminaire.
  • This height adjustment can be adapted to the daylight situation and can be controlled, for example, by a daylight-dependent sensor. It is also possible that only some specific settings of the secondary reflector device 2 can be made, so that a gradual adjustment can take place.
  • FIG. 3 shows an uppermost position of the secondary reflector device 2, in which the outer edge 19 of the secondary reflector lies essentially circumferentially on the inner surface of the main reflector 1.
  • the individual reflectors can also be designed differently with regard to their geometry, their material and their surface, which in turn enables other light characteristics to be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Aerials With Secondary Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)
EP94112151A 1993-10-13 1994-08-03 Lampe à dispositif réfléchissant auxiliaire ajustable en hauteur Withdrawn EP0648971A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9315627U 1993-10-13
DE9315627U DE9315627U1 (de) 1993-10-13 1993-10-13 Leuchte mit einer höhenverschiebbaren Nebenreflektoreinrichtung

Publications (1)

Publication Number Publication Date
EP0648971A1 true EP0648971A1 (fr) 1995-04-19

Family

ID=6899379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94112151A Withdrawn EP0648971A1 (fr) 1993-10-13 1994-08-03 Lampe à dispositif réfléchissant auxiliaire ajustable en hauteur

Country Status (2)

Country Link
EP (1) EP0648971A1 (fr)
DE (1) DE9315627U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0802367A2 (fr) * 1996-04-17 1997-10-22 Hartmut S. Engel Lampe à réflecteur
DE19737341A1 (de) * 1997-08-27 1999-03-04 Jens Pohlmann Leuchte mit einem verstellbaren Doppelreflektor, der aus zwei Schalen besteht und eine Variation der Abstrahlcharakteristik der Leuchte zuläßt
US7207697B2 (en) 2003-02-25 2007-04-24 Cateye Co., Ltd. Illumination apparatus
WO2009056927A1 (fr) * 2007-10-29 2009-05-07 Ansorg Gmbh Lampe comprenant une combinaison de réflecteurs
US7744253B2 (en) 2003-12-23 2010-06-29 Hartmut S. Engel Built-in light

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10227621A1 (de) * 2002-06-20 2004-01-08 Licht + Design Gmbh Leuchte
DE102006018255A1 (de) * 2006-04-18 2007-10-25 Zumtobel Lighting Gmbh Leuchte, insbesondere Hängleuchte, mit einem ersten und einem zweiten Licht-Abstrahlbereich

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE95267C (fr) *
DE470008C (de) * 1926-06-19 1929-01-03 Butler Ames Elektrische Stehlampe mit axial einstellbarem Doppelreflektor
FR654983A (fr) * 1927-05-31 1929-04-12 Perfectionnements apportés aux dispositifs anti-éclat pour les phares d'automobiles
FR2657146A1 (fr) * 1990-01-18 1991-07-19 Dilouya Gilbert Projecteur d'eclairage muni d'un occulteur-capteur de flux, notamment pour vehicules automobiles.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723145C3 (de) * 1977-05-23 1981-03-26 Hoffmeister-Leuchten GmbH & Co KG, 58507 Lüdenscheid Elektrische Engstrahlerleuchte
JPS60121205U (ja) * 1984-01-24 1985-08-15 株式会社　津山金属製作所 ランプ体
US4617619A (en) * 1985-10-02 1986-10-14 American Sterilizer Company Reflector for multiple source lighting fixture
US4855884A (en) * 1987-12-02 1989-08-08 Morpheus Lights, Inc. Variable beamwidth stage light
DE4136251C2 (de) * 1990-11-12 1993-11-25 Siemens Ag Indirekte Spiegelleuchte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE95267C (fr) *
DE470008C (de) * 1926-06-19 1929-01-03 Butler Ames Elektrische Stehlampe mit axial einstellbarem Doppelreflektor
FR654983A (fr) * 1927-05-31 1929-04-12 Perfectionnements apportés aux dispositifs anti-éclat pour les phares d'automobiles
FR2657146A1 (fr) * 1990-01-18 1991-07-19 Dilouya Gilbert Projecteur d'eclairage muni d'un occulteur-capteur de flux, notamment pour vehicules automobiles.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0802367A2 (fr) * 1996-04-17 1997-10-22 Hartmut S. Engel Lampe à réflecteur
EP0802367A3 (fr) * 1996-04-17 1998-09-09 Hartmut S. Engel Lampe à réflecteur
DE19737341A1 (de) * 1997-08-27 1999-03-04 Jens Pohlmann Leuchte mit einem verstellbaren Doppelreflektor, der aus zwei Schalen besteht und eine Variation der Abstrahlcharakteristik der Leuchte zuläßt
US7207697B2 (en) 2003-02-25 2007-04-24 Cateye Co., Ltd. Illumination apparatus
US7744253B2 (en) 2003-12-23 2010-06-29 Hartmut S. Engel Built-in light
CN1751207B (zh) * 2003-12-23 2011-11-16 哈特姆特·S·英格尔 内置灯
WO2009056927A1 (fr) * 2007-10-29 2009-05-07 Ansorg Gmbh Lampe comprenant une combinaison de réflecteurs

Also Published As

Publication number Publication date
DE9315627U1 (de) 1994-09-29

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