EP0802368A2 - Luminaire avec une lampe notamment a faible volume - Google Patents

Luminaire avec une lampe notamment a faible volume Download PDF

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Publication number
EP0802368A2
EP0802368A2 EP97106174A EP97106174A EP0802368A2 EP 0802368 A2 EP0802368 A2 EP 0802368A2 EP 97106174 A EP97106174 A EP 97106174A EP 97106174 A EP97106174 A EP 97106174A EP 0802368 A2 EP0802368 A2 EP 0802368A2
Authority
EP
European Patent Office
Prior art keywords
reflector
main reflector
luminaire
outside
additional
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
EP97106174A
Other languages
German (de)
English (en)
Other versions
EP0802368A3 (fr
EP0802368B1 (fr
Inventor
Gerd Salzmann
Helfried Schadauer
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 Staff GmbH
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 EP0802368A2 publication Critical patent/EP0802368A2/fr
Publication of EP0802368A3 publication Critical patent/EP0802368A3/fr
Application granted granted Critical
Publication of EP0802368B1 publication Critical patent/EP0802368B1/fr
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
    • 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
    • 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
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • 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
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • 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
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37—U-shaped

Definitions

  • the invention relates to a lamp according to the preamble of claim 1.
  • a downlight predominantly emits the light steeply downwards, so that above an angle of at least 30 ° with respect to the horizontal no light leaves the lamp or hardly any light leaves the lamp. This avoids direct glare for people in the illuminated room from the mostly very bright lamps.
  • the additional reflector B can be mounted inside the main reflector A of the lamp C. This reduces the free cross section of the light exit opening D, which on the one hand leads to a reduction in efficiency. On the other hand, the reduced free cross-section is associated with a different appearance from the normal appearance, which can lead to a subjective disturbance of the sense of space. I.e. the appearance of the lamp is deteriorated.
  • the main reflector A is cut out in the area opposite the wall to be illuminated or the area to be illuminated, the additional reflector B being mounted in the area of the cutout E outside the main reflector A.
  • the opening E in the main reflector weakens it mechanically. It also makes a additional processing step necessary, which leads to a considerable increase in manufacturing costs.
  • the invention has for its object to design a lamp of the present type so that at least a partial portion of the area surrounding the lamp can be illuminated without loss of stability.
  • the invention is further based on the object of designing a luminaire of the present type in such a way that a simple and inexpensive construction can be achieved.
  • the reflection layer is optionally arranged on the outside or on the inside of the main reflector. This is particularly advantageous if the transparent base body has a light-scattering structure on the outside, for. B. facets. If the reflective layer is now applied to the outside of the main reflector, this scattering structure comes into effect. If, on the other hand, the reflection layer is applied to the smooth inside of the main reflector, a simple reflector with a smooth reflection layer is created. The scattering structure is ineffective in this case, however, two types of reflectors (smooth or structured) can be realized with a single tool for the transparent base body.
  • the reflection layer can be applied in a simple and cost-effective manner, and good quality can be achieved.
  • the subclaims contain features which improve targeted illumination of at least one side area, lead to a simple, small and inexpensive construction and also improve reflection.
  • the lamp 1 shown in the figures is one with a preferably small-volume lamp 2, for example a high-pressure discharge lamp, compact fluorescent lamp, halogen incandescent lamp or the like.
  • the cross-sectional size of the light exit opening 3 of the lamp 1 is relatively small, for example less than 250 mm in the largest cross-sectional dimension.
  • the shape of the light exit opening 3 can be round or square or elongated, for example rectangular or oval.
  • a housing 4 and / or a main reflector 5 of the lamp 1 can also be of a corresponding cross-sectional shape.
  • the lamp 1 is designed as a recessed lamp.
  • the housing can be made using individual frame pieces 6 may be formed, which may bridge the main reflector 5 in an arc shape and hold an aperture 7 which is present in the present embodiment and which covers the edge of an installation opening 8 shown in FIG. 3 of a ceiling wall 9 on the underside.
  • an annular partial housing 4a which is closed in the circumferential direction and on which the main reflector 5 can be held and which is bridged by at least one frame piece 6.
  • indicated holding elements 11 for the lamp 1 can be arranged, which are supported on the installation opening edge of the ceiling wall 9.
  • the panel 7 can consist of individual frame parts or can be in one piece in the circumferential direction. It or its parts can be integrally formed with the housing 4 or the associated frame pieces 6 or attached to these parts.
  • the main reflector 5 has at its lower edge an outwardly projecting flange 12 which is received at least partially recessed in an annular recess 13 in the diaphragm frame and in particular is arranged so deeply recessed that the front or underside of the flange 12 is aligned with the front - or the underside of the bezel frame completes approximately
  • the flange 12 can rest against a shoulder surface 14 forming the base of the ring recess 13.
  • the main reflector 5 has a dome-shaped cross-sectional shape, wherein it is preferably formed in one piece.
  • the cross-sectional shape of the main reflector 5 is shaped to be flat or conical or spherical section-shaped, radially inclined outward.
  • This ridge wall 15 is followed by a rounding 16 at the bottom, which merges into a divergent side wall 17 which can be shaped in the shape of a cone or a spherical ring.
  • the angle W which the side wall 17 includes with the vertical central axis 18 is relatively acute and is approximately 5 to 15 °, in particular approximately 10 °. That is, the side wall 17 is arranged relatively steep.
  • the lamp 2 extends through a feed-through opening 19 into the upper region of the main reflector 5 and is held in this position by means of a suitable socket 21, which can be fastened to the housing 4 or to an associated frame piece 6.
  • a suitable socket 21 which can be fastened to the housing 4 or to an associated frame piece 6.
  • the through opening 19 and the socket 21 are arranged in the upper lateral region of the lamp 1.
  • the main reflector 5 is in its ridge area by suitable holding means, e.g. Clamps or screws held on the housing 4 or on an associated frame piece 6.
  • the main body of the main reflector 5 consists of a transparent material such as glass or plastic, and the thickness of the peripheral wall 22 can be the same, as shown in FIG. 1.
  • the peripheral wall 22 is coated with a reflection layer 23, which forms a refection surface 24 located on the outside of the main reflector 5, on which the light rays 25 emanating from the lamp 2 are reflected.
  • the light rays 25 are first refracted toward the side opposite to the direction of light propagation 27 when they penetrate the inner surface 26 and towards the direction of propagation 27 when they emerge from the inner surface 26.
  • different light beam directions result from the illustration in FIG. 4.
  • the underside flange surface 12a which is preferably conically convergent at the top, is coated with the reflection layer 23.
  • the lamp is assigned an additional reflector 31, which is arranged in the lower region of the main reflector 5 or adjoins it from below and extends over the entire circumference or can only extend over a partial area of the circumference.
  • the additional reflector 31 is arranged on the outside of the main reflector 5, it being at an outward distance from the latter.
  • the additional reflector 31 is concave toward the inside in the vertical, in particular rounded concave, and is preferably adapted approximately horizontally to the circumferential shape of the main reflector 5.
  • the upper and lower regions of the reflection surface 33 of the additional reflector 31 arranged on the inside enclose with the vertical angle W1, W2, which are about the same size. This results in a favorable resulting lateral propagation direction 32, which extends under the opposite lower edge of the additional reflector 5.
  • the reflection layer 23 can be arranged on the outside or preferably on the inside 26 of the main reflector 5.
  • the additional reflector 31 In the area of the additional reflector 31 there is no reflection layer 23 on the main reflector 5.
  • the dimensions of the window 34 formed in this way are approximately the same or larger than the corresponding dimensions of the additional reflector 31, so that a required amount of light rays are transmitted through the transparent area in the area of the window 34
  • the peripheral wall 22 of the main reflector 5 reaches the additional reflector 31 and is reflected on the reflection surface 33 in the direction of propagation 32.
  • the window 34 can be easily created, e.g. by covering the inner and / or outer surface of the main reflector 5 with its outer or inner coating with the reflective layer 23. This is preferably made of a metallic material.
  • the reflection layer 23 can be applied by evaporating the main reflector 5 with aluminum or by chromating.
  • the additional reflector 31 is not arranged at an outward distance from the main reflector 5, but is arranged directly on the outside of the main reflector 5 , wherein the outside is convex outwards in the vertical.
  • This additional reflector 31 is thus arranged in one piece on the main reflector 5.
  • the reflection surface 33 is formed by a reflection layer 23a applied on the outside in the region of the window 34 and in the region of the formation 35.
  • the additional reflector 31 is thus formed by a transparent thickening 30 or an outside transparent material approach on the main reflector 5.
  • the reflection surface 24 can be formed by an outside or preferably inside coating of the main reflector 5 with a reflection layer 23.
  • the outer surface 30a of the thickening 30 or a material approach can run parallel to the straight or curved peripheral wall 22.
  • the ends of the thickening 30 pointing in the circumferential direction can be blunt, for. B. be angular or also rounded.
  • the reflection area 33 includes in its upper region an acute angle W3 open at the bottom with the peripheral wall 22 of the main reflector 5.
  • the embodiment according to FIGS. 8 and 9 differs from the embodiment according to FIGS. 6 and 7 in that the reflecting surface 33 is subdivided into reflecting surface strips 33a which are superimposed on one another with respect to a resulting direction of irradiation 35 from the lamp 2 at such an angle W4 of the vertical longitudinal center axis 18 are arranged such that the respective propagation direction component 32 is directed under the opposite edge region of the main reflector 5, in each case taking into account the light refraction angle. Between the successive reflection surface strips 33a, step surfaces 33b are arranged transversely to the latter, which result in a step-shaped outer surface of the additional reflector 31.
  • At least the reflective surface strips 33a and preferably also the step surfaces 33b are coated with a reflective layer 23, so that the reflection is ensured in accordance with the propagation direction components 32.
  • the reflection layer 23 can be arranged outside the window 34 on the outside or preferably inside 26 of the main reflector 5.
  • the position or positions of one or more additional reflectors 31 is to be determined according to the requirement for side lighting. If, according to FIG. 10, lateral radiation is desired only on one side of the lamp 1, for. B. to illuminate a wall 37 or a lateral area of the existing space, all that is required is an additional reflector 31 on the opposite side of the lamp 1 or of the main reflector 5, the length L of the additional reflector 31 directed in the circumferential direction being dimensioned so long, For example, about 90 ° that the propagation direction components reflected from its end regions limit the lateral region LB to be illuminated.
  • two additional reflectors 31 are to be arranged correspondingly opposite one another.
  • an additional reflector 31 is to be arranged on the side of the lamp 1 opposite the corner.
  • an additional reflector 31 in the length L according to FIGS. 10 or 11 or in a length L extending over an angular range of approximately 180 ° can also be provided here.
  • the luminaire 1 is glare-free due to the steep radiation of the luminaire 1 forming a downlight when looking in or transverse to the additional direction of propagation 32. This is e.g. B. in the lighting of a hallway 38 between the walls 37 of FIG. 11 of importance and advantage.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
EP97106174A 1996-04-18 1997-04-15 Luminaire avec une lampe notamment a faible volume Expired - Lifetime EP0802368B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19615388A DE19615388A1 (de) 1996-04-18 1996-04-18 Leuchte mit einer insbesondere kleinvolumigen Lampe
DE19615388 1996-04-18

Publications (3)

Publication Number Publication Date
EP0802368A2 true EP0802368A2 (fr) 1997-10-22
EP0802368A3 EP0802368A3 (fr) 1998-10-28
EP0802368B1 EP0802368B1 (fr) 2003-01-08

Family

ID=7791677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106174A Expired - Lifetime EP0802368B1 (fr) 1996-04-18 1997-04-15 Luminaire avec une lampe notamment a faible volume

Country Status (5)

Country Link
US (1) US5931567A (fr)
EP (1) EP0802368B1 (fr)
AT (1) ATE230837T1 (fr)
DE (2) DE19615388A1 (fr)
DK (1) DK0802368T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275899A2 (fr) 2001-07-10 2003-01-15 Zumtobel Staff GmbH Projecteur encastré avec réflecteur latéral
EP1134481A3 (fr) * 2000-03-13 2003-05-14 Heraeus Med GmbH Lampe scialytique avec une armature lumineuse comprenant une lampe à décharge
EP1754931A1 (fr) * 2005-08-18 2007-02-21 ULO Fahrzeugleuchten-GmbH Dispositif d'éclairage avec un réflecteur et réflecteur pour un dispositif d'éclairage
DE102016201347A1 (de) * 2016-01-29 2017-08-03 Zumtobel Lighting Gmbh Optisches System zum Beeinflussen der Lichtabgabe einer Lichtquelle

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10006410A1 (de) 2000-02-14 2001-08-16 Zumtobel Staff Gmbh Leuchte
DE19801128A1 (de) * 1998-01-14 1999-07-15 Zumtobel Staff Gmbh Reflektor für eine Lichtquelle, insbesondere zur Raumbeleuchtung
DE20002565U1 (de) * 2000-02-14 2001-06-28 Zumtobel Staff Gmbh Leuchtdiodenanordnung mit Reflektor
DE10006409A1 (de) * 2000-02-14 2001-08-16 Zumtobel Staff Gmbh Leuchte
DE20004985U1 (de) * 2000-03-17 2001-07-26 Zumtobel Staff Gmbh & Co Kg Leuchte, insbesondere Einbauleuchte
DE10013086A1 (de) * 2000-03-17 2001-09-20 Zumtobel Staff Gmbh & Co Kg Einbauleuchte mit einem domförmigen Reflektor
DE10013087A1 (de) 2000-03-17 2001-09-20 Zumtobel Staff Gmbh & Co Kg Einbauleuchte mit einem Haltering für Zusatzbauteile
US6779910B1 (en) * 2001-09-13 2004-08-24 Bruce Pelton Fluorescent downlight with optimized distribution
US6979107B1 (en) * 2003-08-13 2005-12-27 Lusa Lighting, Inc. Puck lighting fixture
DE10360945A1 (de) * 2003-12-23 2005-07-21 Engel, Hartmut S. Einbauleuchte
JP4511275B2 (ja) * 2004-01-30 2010-07-28 三洋電機株式会社 投写型映像表示装置

Citations (6)

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FR2192272A1 (fr) * 1972-07-11 1974-02-08 Cibie Projecteurs
DE2553844A1 (de) * 1975-11-29 1977-06-08 Staff Kg Leuchte mit hohlspiegelreflektor
US4475147A (en) * 1982-08-19 1984-10-02 Mcgraw-Edison Company Adjustable wall wash reflector assembly for a recess mounted lighting fixture
DE3405739A1 (de) * 1984-02-17 1985-08-22 Hartmann & Unger GmbH, 4619 Bergkamen Leuchte, vorzugsweise zur arbeitsplatzbeleuchtung
DE8709038U1 (de) * 1986-07-29 1987-08-20 Iguzzini Illuminazione S.p.A., Racanati, Macerata Leuchte mit asymmetrischem Lichtbündel
US5535110A (en) * 1995-02-16 1996-07-09 Cooper Industries, Inc. Ceiling mounted wallwash light fixture

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US2418195A (en) * 1944-11-02 1947-04-01 Holophane Co Inc Luminaire
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DE2223728C3 (de) * 1972-05-16 1980-08-14 Erco Leuchten Gmbh, 5880 Luedenscheid Strahlerleuchte
US4081667A (en) * 1976-07-28 1978-03-28 Optical Coating Laboratory, Inc. Lighting fixture having fresnel reflector with high reflection coating thereon
DE3249401A1 (de) * 1982-10-18 1984-10-04 Franz Sill Gmbh, 1000 Berlin Decken-einbauleuchte
JPS61277102A (ja) * 1985-04-05 1986-12-08 マンヴイル　コ−ポレ−シヨン 反射器
KR900007908B1 (ko) * 1988-02-06 1990-10-23 원정희 조명용 반사 및 칼라반사판
US5143446A (en) * 1992-02-11 1992-09-01 Lexalite International Corporation Lighting fixture with an improved light transmitting film
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2192272A1 (fr) * 1972-07-11 1974-02-08 Cibie Projecteurs
DE2553844A1 (de) * 1975-11-29 1977-06-08 Staff Kg Leuchte mit hohlspiegelreflektor
US4475147A (en) * 1982-08-19 1984-10-02 Mcgraw-Edison Company Adjustable wall wash reflector assembly for a recess mounted lighting fixture
DE3405739A1 (de) * 1984-02-17 1985-08-22 Hartmann & Unger GmbH, 4619 Bergkamen Leuchte, vorzugsweise zur arbeitsplatzbeleuchtung
DE8709038U1 (de) * 1986-07-29 1987-08-20 Iguzzini Illuminazione S.p.A., Racanati, Macerata Leuchte mit asymmetrischem Lichtbündel
US5535110A (en) * 1995-02-16 1996-07-09 Cooper Industries, Inc. Ceiling mounted wallwash light fixture

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1134481A3 (fr) * 2000-03-13 2003-05-14 Heraeus Med GmbH Lampe scialytique avec une armature lumineuse comprenant une lampe à décharge
EP1275899A2 (fr) 2001-07-10 2003-01-15 Zumtobel Staff GmbH Projecteur encastré avec réflecteur latéral
DE10133360A1 (de) * 2001-07-10 2003-01-23 Zumtobel Staff Gmbh Downlight mit Seitenreflektor
EP1275899A3 (fr) * 2001-07-10 2006-10-11 Zumtobel Staff GmbH Projecteur encastré avec réflecteur latéral
EP1754931A1 (fr) * 2005-08-18 2007-02-21 ULO Fahrzeugleuchten-GmbH Dispositif d'éclairage avec un réflecteur et réflecteur pour un dispositif d'éclairage
DE102016201347A1 (de) * 2016-01-29 2017-08-03 Zumtobel Lighting Gmbh Optisches System zum Beeinflussen der Lichtabgabe einer Lichtquelle

Also Published As

Publication number Publication date
ATE230837T1 (de) 2003-01-15
EP0802368A3 (fr) 1998-10-28
DK0802368T3 (da) 2003-02-17
EP0802368B1 (fr) 2003-01-08
DE19615388A1 (de) 1997-10-23
US5931567A (en) 1999-08-03
DE59709068D1 (de) 2003-02-13

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