EP1054209B1 - Beleuchtungseinrichtung mit ausgeprägten Blendeschutz-Eigenschaften - Google Patents

Beleuchtungseinrichtung mit ausgeprägten Blendeschutz-Eigenschaften Download PDF

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Publication number
EP1054209B1
EP1054209B1 EP00201700A EP00201700A EP1054209B1 EP 1054209 B1 EP1054209 B1 EP 1054209B1 EP 00201700 A EP00201700 A EP 00201700A EP 00201700 A EP00201700 A EP 00201700A EP 1054209 B1 EP1054209 B1 EP 1054209B1
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EP
European Patent Office
Prior art keywords
reflecting
lighting
lighting fixture
fixture according
profiled
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
EP00201700A
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English (en)
French (fr)
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EP1054209A3 (de
EP1054209A2 (de
Inventor
Gian Pietro Beghelli
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.)
Beghelli SpA
Original Assignee
Beghelli SpA
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Filing date
Publication date
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Application filed by Beghelli SpA filed Critical Beghelli SpA
Publication of EP1054209A2 publication Critical patent/EP1054209A2/de
Publication of EP1054209A3 publication Critical patent/EP1054209A3/de
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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
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • 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
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/10—Combinations of only two kinds of elements the elements being reflectors and screens
    • 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
    • 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

  • This invention refers to a lighting fixture of high antiglare properties.
  • Such fixtures are designed in such a manner that the light sources are not visible from the most common directions of viewing.
  • This effect is generally attained by designing the reflector, or a part of its housing, so as to achieve a desired screening angle.
  • the purpose of this invention is therefore to produce a lighting fixture capable of avoiding the glare generated by a direct viewing of the light source, and at the same time of offering high energy efficiency, expressed in lumens/watt.
  • Another purpose of the invention is to produce a lighting fixture of high antiglare properties, capable of offering a chance of producing some suitable combinations of direct and indirect lighting.
  • the lighting fixture of this invention offers, with respect to the usual metallic grids, the advantage of a better energy efficiency, expressed in terms of lumen/watt.
  • the fixture of the invention allows, among other things, to screen the light radiated in the most common viewing directions.
  • the lighting fixture with high antiglare properties according to a first preferred embodiment of this invention is indicated in its overall form by the reference number 10.
  • the lighting fixture 10, which comprises an outer enclosure 21, may be mounted on the ceiling, as shown in the Figures 1-4, or on the wall, as shown in the Figures 5-6.
  • the wall-mounted lighting fixtures provides for a support 35 and a hinge.
  • the inside of the outer enclosure 21 houses a profiled reflecting element 50 (or 40) capable of diffusing toward the outside a light flux originating from a light source 12, for example by a fluorescent tube.
  • the lighting fixture 10 presents a reflecting antiglare surface 13 set opposite the light source 12 and inside the profiled reflecting element 50 (or 40), in such a position that the light source 12 is not visible from the most common directions of observation.
  • the reflecting antiglare surface 13 presents a cusp-shaped section, taken along a plane perpendicular to its longitudinal axis.
  • the reflecting surfaces 13 and the profiled reflecting elements 40 and 50 are treated by a metalizing process that turns their surfaces into mirrors.
  • Figure 11 represents this configuration of elements in a sectional view
  • Figure 12 shows a second preferential embodiment of the invention, again in a sectional view.
  • the profiled reflecting element 50 represents a pair of openings 17 and 18 placed so as to allow the light reflected by the reflecting surface 13 to pass to the outside of the reflecting element 50.
  • the outer enclosure 21 offers corresponding passages 27 and 28, so as to allow said light flux to pass to the outside.
  • the openings 17 and 18 of the profiled reflecting element 50 may be produced by removing the appropriately pierced diaphragms 70 and 71.
  • the use of the pierced diaphragms 70 and 71 allows, at the openings 17 and 18 of the profiled reflecting element 50, to convey the volume of reflected light to the outside, through the openings 17 and 18.
  • partition-type structures 72 and 73 are present at the pierced diaphragms 70 and 71, which allow channeling the light flow emerging from the openings 17 and 18 in an appropriate manner toward the passages 27 and 28.
  • the walls of the structures 72 and 73 are produced from a non-reflecting and non-absorbing material.
  • FIGS. 7-10 represent a further possible embodiment of the lighting fixture of the invention, indicated in its overall form by the number 20.
  • two lamp bodies are present inside a housing enclosure 31, each of which consists of a profiled reflecting element 50.
  • each of the reflecting bodies 50 contains a light source 12, facing an reflecting antiglare surface 13.
  • the presence of the openings 17 and 18 also allows employing a part of the light emitted by the lighting source 12 in an indirect manner, with the aid of the reflecting surface 13, by causing it to be reflected from the walls and/or from the ceiling of the premises where such fixtures are installed.
  • the Figures 13, 15 and 17, respectively, represent some photo-metric curves, referring to the lighting fixtures according to this invention, which are equipped with some light sources of 24W, 38W and 55W, respectively.
  • the Figures 14, 16 and 18 represent, respectively, some photo-metric curves referring to lighting fixtures according to this invention, equipped with pairs of light sources of 24W, 38W and 55W, respectively.
  • each of these diagrams indicates, by a continuous dashed line L1, the distribution of the lighting intensity originating from the fixture measured, and represented by polar coordinates referred to the orthogonal plane of the lighting fixture (on the C0 -C180 plane).
  • the continuous dashed line L2 indicates the distribution of the lighting intensity originating from the measured fixture and represented by polar coordinates referred to the longitudinal plane crossing the axis of the same fixture (on the C90-C270 plane).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Claims (6)

  1. Beleuchtungseinrichtung mit stark ausgeprägten Blendschutzeigenschaften, umfassend
    ein zur Wand- oder Deckenmontage geeignetes Außengehäuse (21, 31) mit mindestens einem zugehörigen profilierten reflektierenden Element (40, 50) zur nach außen gerichteten Diffusion des von mindestens einer Lichtquelle (12) stammenden Lichtstroms,
    wobei mindestens eine reflektierende Blendschutzoberfläche (13) gegenüberliegend zu der mindestens einen Lichtquelle (12) in einer derartigen Position angeordnet ist, dass sie verhindert, dass die mindestens eine Lichtquelle (12) direkt sichtbar ist,
    dadurch gekennzeichnet, dass das mindestens eine profilierte reflektierende Element (50) mehrere Öffnungen (17, 18) aufweist, welche durch Entfernen von geeigneten durchlöcherten Blenden (70, 71) entstehen und derart angeordnet sind, dass sie das von der mindestens einen reflektierenden Blendschutzoberfläche (13) und dem Außengehäuse (21, 31), welches Durchgänge (27, 28) für einen Teil des Lichtstroms gegenüberliegend zu den Öffnungen (17, 18) aufweist, reflektierte Licht durchlassen,
    wobei die durchlöcherten Blenden (70, 71) bestimmten unterteilungsartigen Strukturen (72, 73) gegenüberliegen, welche ermöglichen, dass der von den Öffnungen (17, 18) erzeugte Lichtstrom kanalisiert und zu den Durchgängen (27, 28) geleitet wird, wenn die auf geeignete Art und Weise durchlöcherten Blenden (70, 71) entfernt werden.
  2. Beleuchtungseinrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass mindestens eine reflektierende Blendschutzoberfläche (13) innerhalb des mindestens einen profilierten reflektierten Elements (40, 50) angeordnet ist.
  3. Beleuchtungseinrichtung nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, dass die mindestens eine reflektierende Blendschutzoberfläche (13) entlang einer Ebene, welche senkrecht zu der Längsachse der mindestens einen reflektierenden Blendschutzoberfläche (13) verläuft, einen Querschnitt in der Form einer Spitze aufweist.
  4. Beleuchtungseinrichtung nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, dass die mindestens eine reflektierende Oberfläche (13) und das mindestens eine profilierte reflektierende Element (40, 50) mit metallisierten Beschichtungen behandelt sind, wodurch die Oberflächen mit einer spiegelnden Eigenschaft versehen sind.
  5. Beleuchtungseinrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass die unterteilungsartigen Strukturen (72, 73) Wände aufweisen, die aus einem nicht reflektierenden und nicht absorbierenden Material gefertigt sind.
  6. Beleuchtungseinrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass die mindestens eine Lichtquelle (12) durch mindestens eine Leuchtstoffröhre gebildet ist.
EP00201700A 1999-05-17 2000-05-12 Beleuchtungseinrichtung mit ausgeprägten Blendeschutz-Eigenschaften Expired - Lifetime EP1054209B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999MI001075A IT1312450B1 (it) 1999-05-17 1999-05-17 Apparecchio per illuminazione ad elevate proprieta' antiabbagliamento
ITMI991075 1999-05-17

Publications (3)

Publication Number Publication Date
EP1054209A2 EP1054209A2 (de) 2000-11-22
EP1054209A3 EP1054209A3 (de) 2003-02-12
EP1054209B1 true EP1054209B1 (de) 2005-02-16

Family

ID=11382978

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00201700A Expired - Lifetime EP1054209B1 (de) 1999-05-17 2000-05-12 Beleuchtungseinrichtung mit ausgeprägten Blendeschutz-Eigenschaften

Country Status (3)

Country Link
EP (1) EP1054209B1 (de)
DE (1) DE60018129T2 (de)
IT (1) IT1312450B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140268731A1 (en) 2013-03-15 2014-09-18 Lighting Science Group Corpporation Low bay lighting system and associated methods
CN104565987B (zh) * 2013-10-12 2017-05-24 苏州欧普照明有限公司 一种壁灯
WO2022057899A1 (zh) * 2020-09-21 2022-03-24 苏州欧普照明有限公司 照明灯具及其光源系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE550313C (de) * 1929-03-23 1932-05-13 Siemens Schuckertwerke Akt Ges Zum Anschluss an ein elektrisches Netz dienende Grubenlampe
DE3318264A1 (de) * 1983-05-19 1984-11-22 Dr. Ing. Willing GmbH, 1000 Berlin Leuchte mit perforiertem hochglanzreflektor
US4652851A (en) * 1983-11-07 1987-03-24 Ian Lewin Lamp control system
GB2215447B (en) * 1987-11-06 1991-05-29 Designed Architectural Lightin Lighting installation
DE3902494C2 (de) * 1989-01-27 1997-04-30 Siemens Ag Indirekte Spiegelleuchte

Also Published As

Publication number Publication date
IT1312450B1 (it) 2002-04-17
DE60018129D1 (de) 2005-03-24
EP1054209A3 (de) 2003-02-12
ITMI991075A1 (it) 2000-11-17
DE60018129T2 (de) 2006-04-13
EP1054209A2 (de) 2000-11-22

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