EP0802368B1 - Leuchte mit einer insbesondere kleinvolumigen Lampe - Google Patents

Leuchte mit einer insbesondere kleinvolumigen Lampe Download PDF

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Publication number
EP0802368B1
EP0802368B1 EP97106174A EP97106174A EP0802368B1 EP 0802368 B1 EP0802368 B1 EP 0802368B1 EP 97106174 A EP97106174 A EP 97106174A EP 97106174 A EP97106174 A EP 97106174A EP 0802368 B1 EP0802368 B1 EP 0802368B1
Authority
EP
European Patent Office
Prior art keywords
reflector
main reflector
light fitting
reflection
auxiliary
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
EP97106174A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0802368A2 (de
EP0802368A3 (de
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 Staff 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 Zumtobel Staff GmbH filed Critical Zumtobel Staff GmbH
Publication of EP0802368A2 publication Critical patent/EP0802368A2/de
Publication of EP0802368A3 publication Critical patent/EP0802368A3/de
Application granted granted Critical
Publication of EP0802368B1 publication Critical patent/EP0802368B1/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
    • 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 or 8.
  • a downlight mainly emits the light steeply downwards, so that above one No light leaves the luminaire at an angle of at least 30 ° with respect to the horizontal, or hardly any light leaves the lamp. This is for people in the illuminated room direct glare from the mostly very bright lamps avoided.
  • the main reflector A is in the the wall to be illuminated or the area opposite to be illuminated Cut out the area, with the additional reflector B in the area of the cutout E is mounted outside the main reflector A.
  • the main reflector is mechanically weakened. It also makes a additional processing step necessary, resulting in a considerable enlargement of the manufacturing costs.
  • Such a lamp is of the type specified at the beginning generic type and also from DE 87 09 038 U.
  • FR 2 192 272 there is a lamp with an at least partially made of plastic existing reflector body described, the inside or outside with a Reflective layer is coated.
  • From US 5 535 110 A is a lamp with a dome-shaped main reflector and an additional reflector for the lateral emission of part of the light from the lamp described.
  • the additional reflector consists of a plastic layer, which in the associated area of the lamp is arranged on the inside of the main reflector and has circumferential step surfaces on the inside thereof reflect the light towards the relevant side.
  • the invention has for its object a lamp of the present type to design that at least a partial portion of the area surrounding the lamp can be illuminated without loss of stability.
  • the main reflector is preferably for the Radiation of a narrow beam set up.
  • the reflection layer can either be on the outside or on the inside of the main reflector be arranged. This is particularly advantageous if the transparent Main reflector body on the outside a light scattering structure, e.g. B. facets, having. Now the reflection layer is on the outside of the main reflector applied, this scattering structure comes into effect. However, if Reflection layer applied to the smooth inside of the main reflector, this creates a simple reflector with a smooth reflective layer. The scattering structure is in in this case ineffective, but with a single tool for the transparent base body two reflector types (smooth or structured).
  • the reflection layer can be applied in a simple and inexpensive manner, with good quality can be achieved.
  • the subclaims contain features that provide targeted lighting improve at least one side area, for simple, small and lead to inexpensive to manufacture construction and also improve the reflection.
  • the lamp 1 shown in the figures is one with a preferably small volume lamp 2, e.g. a high pressure discharge lamp, Compact fluorescent lamp, halogen lamp or the like.
  • the cross-sectional size the light exit opening 3 of the lamp 1 is relatively small, e.g. less than 250 mm in the largest cross-sectional dimension.
  • the shape of the light exit opening 3 round or square or elongated, e.g. be rectangular or oval. From one Corresponding cross-sectional shape can also be a housing 4 and / or Main reflector 5 of the lamp 1.
  • the lamp is 1 designed as a recessed light.
  • the housing can be made using individual frame pieces 6 may be formed, which bridge the main reflector 5, if necessary, and one at of the present embodiment hold the existing screen 7, which is the edge of a in Fig. 3 shown installation opening 8 of a ceiling wall 9 covered on the underside.
  • an annular, in Enclosed partial housing 4a is provided, on which the main reflector 5 can be held, and which is bridged by at least one frame piece 6.
  • Holding elements 11 for the lamp 1 may be arranged on the installation opening edge the ceiling wall 9 are supported.
  • the panel 7 can consist of individual frame parts exist or be in one piece in the circumferential direction. It can do it or its parts be integrally formed with the housing 4 or the associated frame pieces 6 or attached to these parts.
  • the main reflector 5 preferably has an outward at its lower edge projecting flange 12, in an annular recess 13 in the diaphragm frame is at least partially sunk and in particular sunk so deep it is arranged that the front or underside of the flange 12 with the front or Bottom of the bezel frame approximately closes.
  • the flange 12 can on a the shoulder surface 14 forming the base of the ring recess 13 abuts.
  • the main reflector 5 has a dome-shaped cross-sectional shape, whereby it is preferably formed in one piece.
  • the cross-sectional shape of the Main reflector 5 flat or conical or spherical segment-shaped radially outwards shaped inclined.
  • the angle W with the side wall 17 of the vertical central axis 18 is relatively pointed and is approximately 5 up to 15 °, in particular about 10 °. That is, the side wall 17 is relatively steep arranged.
  • the lamp 2 extends through a feed-through opening 19 into the upper region of the main reflector 5 and is in this position by means of a suitable socket 21 held, which are attached to the housing 4 or to an associated frame piece 6 can.
  • a suitable socket 21 held, which are attached to the housing 4 or to an associated frame piece 6 can.
  • the through opening 19 and the Version 21 arranged in the upper side area of the lamp 1.
  • the main reflector 5 is in its ridge area by suitable holding means, e.g. Clamps or screws on the housing 4 or on an associated frame piece 6 held.
  • the main body of the main reflector 5 consists of a transparent Material such as glass or plastic, the thickness of the peripheral wall 22 being the same can, as shown in Fig. 3.
  • the peripheral wall 22 On the outside, the peripheral wall 22 has a Reflective layer 23 coated, one on the outside of the main reflector 5th located refection surface 24 forms on which the outgoing from the lamp 2 Light rays 25 are reflected.
  • the light rays 25 when penetrating the inner surface 26 first to the Light propagation direction 27 opposite side and when exiting the Inner surface 26 broken towards the direction of propagation 27.
  • the reflection surface 24 result from the Representation in Fig. 4 different light beam directions.
  • the underside flange surface 12a is the is preferably still conically shaped at the top with which Reflective layer 23 coated.
  • the luminaire is an additional reflector 31 assigned, which is arranged in the lower region of the main reflector 5 or from this adjoins downwards and extends over the entire scope or only over one Part of the circumference can extend.
  • the additional reflector 31 is on the outside of Main reflector 5 arranged, being an outward distance of the latter has.
  • the additional reflector 31 is vertical to the inside concave, in particular rounded concave and preferred in the horizontal adapted approximately to the circumferential shape of the main reflector 5.
  • Fig. 5 remove, close the upper and lower areas of the inside Reflection surface 33 of the additional reflector 31 with the vertical angle W1, W2, which are about the same size. This results in a favorable resulting lateral Direction of propagation 32, which is located under the opposite lower edge of the Additional reflector 5 extends.
  • the reflection layer 23 can be on the outside or preferably be arranged on the inside 26 of the main reflector 5.
  • the dimensions of the window 34 formed in this way are approximately dimensioned equal or larger than the corresponding dimensions of the additional reflector 31, so that a required amount of light rays through the area of the window 34th transparent peripheral wall 22 of the main reflector 5 against the additional reflector 31 arrive and reflected on the reflection surface 33 in the direction of propagation 32 become.
  • the window 34 can be easily created, e.g. by covering the inside and / or Outer surface of the main reflector 5 on the outside or inside Coating with the reflection layer 23. This preferably consists of a metallic material.
  • the reflection layer 23 can by vapor deposition Main reflector 5 can be applied with aluminum or by chromating.
  • Vacuum coating methods known per se are also well suited for coating with vapor deposition, electroplating and chemical spraying processes for the metallization of materials.
  • the additional reflector 31 is in contrast to the above Design of the additional reflector 31 not at an outward distance arranged by the main reflector 5, but directly on the outside of the main reflector 5 arranged, the outer side being convex in the vertical direction is.
  • This additional reflector 31 is thus arranged in one piece on the main reflector 5.
  • the Reflection surface 33 is by an outside in the area of the window 34 and in Area of the formation 35 applied reflection layer 23a formed.
  • the additional reflector 31 is thus embodied by a transparent thickening 30 or an outside transparent material approach on the main reflector 5 is formed.
  • the reflection surface 24 can be covered by an outside or preferably inside coating of the main reflector 5 with a Reflection layer 23 may be formed.
  • the outer surface 30a of the thickening 30 or a material approach parallel to the straight or curved peripheral wall 22 extend.
  • the outer surface 30a is convexly curved or with a stronger convex Form curvature than the curvature of the peripheral wall 22, whereby a lens-shaped cross-sectional shape for the thickening 30 results.
  • the reflection surface 33 closes in its upper one Area an open downward acute angle W3 with the peripheral wall 22 of the Main reflector 5 a.
  • the configuration according to FIGS. 8 and 9 differs from the configuration according to 6 and 7 in that the reflection surface 33 in superimposed Reflective surface stripe 33a is divided with respect to a resultant one Irradiation direction 27 and the vertical longitudinal central axis 18 of the lamp 2 in one such angles W4 are arranged that - taking into account the Light refraction angle - the respective propagation direction component 32 below the opposite edge region of the main reflector 5 is directed. Between the successive reflective surface strips 33a are transverse to the latter arranged step surfaces 33b, which has a step-shaped outer surface of the Additional reflector 31 result. At least the reflective surface strips 33a and preferably also the step surfaces 33b are provided with a reflection layer 23 coated so that the reflection corresponds to the propagation direction components 32 is guaranteed. In this embodiment too, the reflection layer 23 can be outside the window 34 on the outside or preferably inside 26 of the Main reflector 5 may be arranged.
  • the position or positions of one or more additional reflectors 31 is according to the To determine the need for side lighting. If, according to FIG lateral radiation is only desired on one side of the lamp 1, e.g. B. for Illumination of a wall 37 or a lateral area of the existing space, it only requires an additional reflector 31 on the opposite side of the Luminaire 1 or the main reflector 5, the length directed in the circumferential direction L of the additional reflector 31 is to be dimensioned as long, e.g. about 90 ° that that of his End areas reflected propagation direction components to the lateral ones limit the illuminating area LB.
  • two opposite walls 37 are to be illuminated laterally are, two additional reflectors 31 are correspondingly opposite to each other to arrange.
  • a corner formed by two walls 37 or a corresponding one Area of the room to be illuminated laterally is an additional reflector 31 on the the corner opposite side of the lamp 1 to be arranged.
  • an additional reflector 31 in the length L according 10 or 11 or in an over an angular range of about 180 ° extending length L are provided.
  • All of the above-described exemplary embodiments are due to the steep radiation the lamp 1 forming a downlight when looking in or across additional propagation direction 32 glare the lamp 1. This is e.g. B. at the Illumination of a hallway 38 between the walls 37 of FIG. 11 is important and beneficial.
  • the reflection surface 24, 33, the main reflector 5 and / or the additional reflector 31 it is possible and advantageous to the reflection surface 24, 33, the main reflector 5 and / or the additional reflector 31 to provide a structure that diffuses light in a small angular range and thus brings about a reduction in subjective glare and / or aesthetic Improved appearance of the lamp.
  • a structure may e.g. B. um act facet surfaces known per se.
  • the main reflector 5 and the additional reflector 31 can this structure on Main reflector 5 may be provided on the inside or outside thereof, with respect to of the additional reflector 31 this structure also in the area of the window 34 outside or can be arranged on the inside.
EP97106174A 1996-04-18 1997-04-15 Leuchte mit einer insbesondere kleinvolumigen Lampe Expired - Lifetime EP0802368B1 (de)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=7791677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106174A Expired - Lifetime EP0802368B1 (de) 1996-04-18 1997-04-15 Leuchte mit einer insbesondere kleinvolumigen Lampe

Country Status (5)

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

Families Citing this family (15)

* 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
DE20004384U1 (de) * 2000-03-13 2000-10-26 Heraeus Med Gmbh Operationsleuchte mit einem Leuchtenkörper, der eine Entladungslampe aufweist
DE10013087A1 (de) 2000-03-17 2001-09-20 Zumtobel Staff Gmbh & Co Kg Einbauleuchte mit einem Haltering für Zusatzbauteile
DE10013086A1 (de) * 2000-03-17 2001-09-20 Zumtobel Staff Gmbh & Co Kg Einbauleuchte mit einem domförmigen Reflektor
DE20004985U1 (de) * 2000-03-17 2001-07-26 Zumtobel Staff Gmbh & Co Kg Leuchte, insbesondere Einbauleuchte
DE10133360A1 (de) 2001-07-10 2003-01-23 Zumtobel Staff Gmbh Downlight mit Seitenreflektor
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
DE102005040227A1 (de) * 2005-08-18 2007-02-22 Ulo Fahrzeugleuchten Gmbh Leuchteneinheit mit einem Reflektorbauteil und Reflektorbauteil für eine Leuchteneinheit
DE102016201347A1 (de) * 2016-01-29 2017-08-03 Zumtobel Lighting Gmbh Optisches System zum Beeinflussen der Lichtabgabe einer Lichtquelle

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Also Published As

Publication number Publication date
ATE230837T1 (de) 2003-01-15
DE59709068D1 (de) 2003-02-13
EP0802368A2 (de) 1997-10-22
DK0802368T3 (da) 2003-02-17
US5931567A (en) 1999-08-03
DE19615388A1 (de) 1997-10-23
EP0802368A3 (de) 1998-10-28

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