EP1916469B1 - Einbauvorrichtung zur gleichmäßigen Beleuchtung von Wänden - Google Patents

Einbauvorrichtung zur gleichmäßigen Beleuchtung von Wänden Download PDF

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Publication number
EP1916469B1
EP1916469B1 EP07119104A EP07119104A EP1916469B1 EP 1916469 B1 EP1916469 B1 EP 1916469B1 EP 07119104 A EP07119104 A EP 07119104A EP 07119104 A EP07119104 A EP 07119104A EP 1916469 B1 EP1916469 B1 EP 1916469B1
Authority
EP
European Patent Office
Prior art keywords
wall
lighting fixture
ceiling
reflecting wall
floor
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.)
Active
Application number
EP07119104A
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English (en)
French (fr)
Other versions
EP1916469A1 (de
Inventor
Massimo Gattari
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.)
Iguzzini Illuminazione SpA
Original Assignee
Iguzzini Illuminazione SpA
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Filing date
Publication date
Application filed by Iguzzini Illuminazione SpA filed Critical Iguzzini Illuminazione SpA
Publication of EP1916469A1 publication Critical patent/EP1916469A1/de
Application granted granted Critical
Publication of EP1916469B1 publication Critical patent/EP1916469B1/de
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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
    • 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
    • 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

Definitions

  • the present invention refers to light devices in general and, more in particular, to a recessed lighting fixture intended for lighting vertical and/or horizontal walls in a uniform manner.
  • a lighting fixture according to the preamble of claim 1 is known from AU 659 399 .
  • the illuminated zone inevitably begins a certain distance from the mouth of the lighting fixture, so to make the lighting fixture itself seem further away from illuminated zone than it actually is.
  • the virtual height of the lighting fixture is decidedly greater than its actual height.
  • a known lamp type made for overcoming the abovementioned drawbacks therefore provides for the mounting of a single reflecting wall in front of the lamp itself.
  • the function of such reflecting wall is that of directing a part of the light rays emitted from the lamp towards the area normally in shadow.
  • the object of the present invention is therefore that of making a recessed lighting fixture capable of making as uniform as possible the lighting of the wall, ceiling or floor towards which the light beam is directed, eliminating the shadow zones on the sides and near the light source.
  • Another object of the present invention is that of making a recessed lighting fixture which lacks any projecting element, thus resulting perfectly flush with respect to the plane of the wall or ceiling in which it is recessed.
  • a further object of the present invention is that of making a recessed lighting fixture which, while being designed for multiple installation, ensures the best possible illumination with the least number of flanked lamps, hence maximising the efficiency of the entire lighting system and reducing its costs.
  • FIG. 1 an embodiment of a recessed lighting fixture is schematically shown in vertical section, indicated in its entirety with the reference number 10.
  • the lighting fixture 10 substantially comprises an optical space 12 inside of which at least one light source 14 is installed, provided with a light emitter bulb 16, such as for example a discharge lamp or a filament lamp.
  • a light emitter bulb 16 such as for example a discharge lamp or a filament lamp.
  • the optical space 12 is then fixed, by means of one or more known fixing means (not shown), to a casing 18 placed downstream of the optical space 12 itself.
  • the entire lighting fixture 10 thus formed is in turn suitably provided with further fixing means (not shown) for a recessed wall, ceiling and/or floor mounting thereof, or in any case on any one substantially flat surface.
  • the optical space 12 can also be formed integrally with the casing 18, rather than being fixed to the same.
  • the casing 18, intended for being retractably inserted, together with the optical space 12, inside a wall P of a ceiling or false ceiling S or a floor (not shown), provides for a substantially flat outer perimeter edge 20, which remains visible from the outside and is shaped for lying on the same plane as the wall P, ceiling S or floor on which the lighting fixture 10 is recessed.
  • the outer perimeter edge 20 of the casing 18 then surrounds and defines an outlet mouth 30 through which the lighted emitted by the light source 14 is irradiated.
  • one or more transparent screens 22 can be provided for (or not provided for), such as for example coloured, neutral, sand-blasted or prismatic glass sheets, interposed between the light source 14 and said outlet mouth 30.
  • the reflecting tab 24 is made in circular segment or arc-shaped form and has suitable dimensions for obtaining the desired lighting effect. It is intended that, by varying the shape and size of the outlet mouth 30, and consequently of the entire lighting fixture 10, the shape and size of the reflecting tab 24 will also vary, without departing from the protective scope of the invention.
  • the function of the reflecting tab 24 is that of deflecting a part of the light rays emitted by the bulb 16 and intended to exit from the outlet mouth 30, in a manner such to direct such deflected light rays towards a second reflecting wall 26 which at least partially covers the inner side surface of the casing 18.
  • the form of the tab 24, arc-shaped in the particular non-limiting embodiment of figure 4 allows distributing the light amount in a manner such to obtain the most uniform possible lighting effect on the wall P, ceiling S or floor.
  • the uniform distribution of the light on the wall P, ceiling S or floor is obtained due to the combined effect of the reflecting wall 26, the reflecting tab 24, and when present the screen 22.
  • the surface of the second reflecting wall 26 can either be flat or curved and can cover a more or less extensive portion of the inner side surface of the casing 18 itself.
  • the reflecting wall 26 is tilted by a predefined angle ⁇ with respect to the tab 24 and consequently, with respect to the plane of the ceiling S, wall P or floor on which the lighting fixture 10 is operatively mounted, thus to permit directing the recovered light quantity in a direction nearly parallel to the surface, for example, of the ceiling S shown in figure 2 .
  • an opaque wall 28 can be provided for which prevents the formation of parasitic light.
  • the extension of the opaque wall 28 substantially depends on the slope of the casing 18, and thus also of the light source 14, with respect to the plane of the ceiling S, as well as the overall size of the lighting fixture 10. In practice, it has been found that for small size lamps, the presence of the opaque wall 28 improves the visual comfort of the fixture, decreasing its glare, while for larger lamps such walls can also be absent.
  • the recessed lighting fixture according to the present invention achieves the objects indicated above, in particular providing for a lamp which is perfectly flush with the wall, ceiling or floor on which it is recessed and which is capable of drastically reducing (even nearly eliminating) the light and shadow effects of the traditional recessed lamps, due to the combined action of the reflecting walls which are appropriately positioned and tilted with respect to each other.
  • the double advantage is thus obtained of improving the efficiency of the lighting fixture and ensuring at the same time achieving a pleasant aesthetic effect due to the total absence of projecting elements and/or additional pieces on the fixture itself.
  • the presence of the flat, more or less extensive reflecting tab which at least partially covers the outlet mouth of the light beam is also useful for increasing the shielding of the lighting fixture and for limiting undesired glare effects.
  • the recessed lighting fixture of the present invention as conceived is in any case susceptible to numerous modifications and variants, all part of the same inventive concept; moreover, all details can be substituted by technically equivalent elements.
  • the materials used, as well as the sizes, can be of any type according to the specific technical requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Claims (11)

  1. Leuchtvorrichtung (10), die in einer Ausnehmung an einer Wand (P), an einer Decke (S) oder an einem Boden installierbar ist und mindestens eine betrieblich mit einem Gehäuse (18) verbundene Lichtquelle (14) umfasst, wobei das Gehäuse (18) mit einem im Wesentlichen flachen Außenumfangsrand (20) versehen ist, der zum Aufliegen auf der gleichen Fläche der Wand (P), der Decke (S) oder des Bodens geformt ist, an der/dem die Vorrichtung (10) eingelassen ist, wobei der Außenumfangsrand (20) mindestens eine Auslassmündung (30) umgibt und definiert, durch die der von der Lichtquelle (14) abgestrahlte Lichtstrahl austritt,
    dadurch gekennzeichnet, dass an dem Außenumfangsrand (20) des Gehäuses (18) mindestens eine erste im Wesentlichen flache Reflektionswand (24) vorgesehen ist, welche die Auslassmündung (30) zumindest teilweise blockiert, wobei die erste Reflektionswand (24) einen Teil der von der Lichtquelle (14) abgestrahlten Lichtstrahlen ablenkt, um sie in Richtung mindestens einer zweiten Reflektionswand (26) zu richten, welche die Oberfläche der Innenseite des Gehäuses (18) zumindest teilweise abdeckt, und wobei die zweite Reflektionswand (26) bezüglich der ersten Reflektionswand (24) um einen vorbestimmten Winkel (α) verkippt ist, um den Lichtstrahlteil in eine Richtung nahezu parallel zu der Wand (P), der Decke (S) oder dem Boden, an der/dem die Vorrichtung (10) eingelassen ist, zu richten.
  2. Leuchtvorrichtung (10) nach Anspruch 1,
    dadurch gekennzeichnet, dass die erste Reflektionswand (24) auf einer gleichen Ebene liegt, auf der der Außenumfangsrand (20) und die Wand (P), die Decke (S) oder der Boden liegen, wenn die Leuchtvorrichtung (10) in einer Betriebsposition in der Ausnehmung installiert ist.
  3. Leuchtvorrichtung (10) nach Anspruch 1,
    dadurch gekennzeichnet, dass der Winkel (α) zwischen der ersten Reflektionswand (24) und der zweiten Reflektionswand (26) von 90° bis 160° variiert.
  4. Leuchtvorrichtung (10) nach Anspruch 1,
    dadurch gekennzeichnet, dass ein oder mehrere transparente(r) Schirm(e) (22) innerhalb des Gehäuses (18) vorgesehen ist/sind, wobei der eine oder die mehreren transparente(n) Schirm(e) (22) bezüglich der Auslassmündung (30) und folglich bezüglich der Wand (P), der Decke (S) oder des Bodens in variablen Abständen und Neigungen angeordnet ist/sind.
  5. Leuchtvorrichtung (10) nach Anspruch 4,
    dadurch gekennzeichnet, dass der eine oder die mehreren transparente(n) Schirm(e) (22) mit der ersten Reflektionswand (24) und mit der zweiten Reflektionswand (26) zusammenwirken, um den Lichtstrahlteil in eine Richtung nahezu parallel zu der Wand (P), der Decke (S) oder des Bodens zu richten, an der/dem die Vorrichtung (10) eingelassen ist.
  6. Leuchtvorrichtung (10) nach Anspruch 4,
    dadurch gekennzeichnet, dass der eine oder die mehreren transparente(n) Schirm(e) (22) aus farbigen, neutralen, sandgestrahlten oder prismatischen Glasplatten besteht/bestehen.
  7. Leuchtvorrichtung (10) nach Anspruch 1,
    dadurch gekennzeichnet, dass auf dem Oberflächenabschnitt der Innenseite des Gehäuses (18) gegenüber demjenigen, an dem die zweite Reflektionsoberfläche (26) angeordnet ist, mindestens eine lichtundurchlässige Wand (28) vorgesehen ist, welche die Bildung von parasitären Lichtreflektionen verhindert.
  8. Leuchtvorrichtung (10) nach Anspruch 7,
    dadurch gekennzeichnet, dass die Ausdehnung der lichtundurchlässigen Wand (28) von der Neigung der Lichtquelle (14) bezüglich der Ebene, an der die Wand (P), die Decke (S) oder der Boden liegen, und von den Gesamtabmessungen der Leuchtvorrichtung (10) abhängt.
  9. Leuchtvorrichtung (10) nach Anspruch 1,
    dadurch gekennzeichnet, dass die erste Reflektionswand (24) in einer Kreissegment- oder Bogenform ausgebildet ist.
  10. Leuchtvorrichtung (10) nach Anspruch 1,
    dadurch gekennzeichnet, dass die Oberfläche der zweiten Reflektionswand (26) eben ist.
  11. Leuchtvorrichtung (10) nach Anspruch 1,
    dadurch gekennzeichnet, dass die Oberfläche der zweiten Reflektionswand (26) gekrümmt ist.
EP07119104A 2006-10-26 2007-10-23 Einbauvorrichtung zur gleichmäßigen Beleuchtung von Wänden Active EP1916469B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT002063A ITMI20062063A1 (it) 2006-10-26 2006-10-26 Apparecchio da incasso per l'illuminazione uniforme di pareti

Publications (2)

Publication Number Publication Date
EP1916469A1 EP1916469A1 (de) 2008-04-30
EP1916469B1 true EP1916469B1 (de) 2010-05-05

Family

ID=38896647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07119104A Active EP1916469B1 (de) 2006-10-26 2007-10-23 Einbauvorrichtung zur gleichmäßigen Beleuchtung von Wänden

Country Status (7)

Country Link
EP (1) EP1916469B1 (de)
CN (1) CN101169227B (de)
AT (1) ATE467083T1 (de)
DE (1) DE602007006266D1 (de)
ES (1) ES2345949T3 (de)
IT (1) ITMI20062063A1 (de)
NO (1) NO20075414L (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20120057A1 (it) * 2012-03-19 2013-09-20 Iguzzini Illuminazione Riflettore per apparecchi di illuminazione comprendente mezzi atti ad eliminare disuniformità dell'illuminazione.
ITFI20130065A1 (it) * 2013-03-26 2014-09-27 Iguzzini Illuminazione Apparecchio di illuminazione di tipo wall washer.
JP6664422B2 (ja) * 2018-01-29 2020-03-13 三菱電機株式会社 照明器具

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623956A (en) * 1984-08-06 1986-11-18 Conti Mario W Recessed adjustable lighting fixture
US4855883A (en) * 1986-05-21 1989-08-08 Spitz Russell W Fluorescent lighting apparatus
DE4312380A1 (de) * 1992-07-31 1994-02-03 Siemens Ag Strahlerleuchte
AU659399B3 (en) * 1994-10-31 1995-05-11 Australume (Solar) Pty Limited An improved lighting arrangement
EP1007880A4 (de) * 1996-06-10 2001-05-16 Tenebraex Corp Vorrichtung und verfahren für verbesserte architektonische beleuchtungseinrichtungen
US6234643B1 (en) * 1999-09-01 2001-05-22 Joseph F. Lichon, Jr. Lay-in/recessed lighting fixture having direct/indirect reflectors
GB2378499A (en) * 2001-08-10 2003-02-12 Central Research Lab Ltd A lamp for a projection system
ITFI20030039U1 (it) * 2003-04-16 2004-10-17 Targetti Sankey Spa Apparecchio per illuminazione, da incasso o a plafoniera, con fondo riportante immagini di fantasia

Also Published As

Publication number Publication date
CN101169227B (zh) 2011-09-21
CN101169227A (zh) 2008-04-30
NO20075414L (no) 2008-04-28
ES2345949T3 (es) 2010-10-06
ITMI20062063A1 (it) 2008-04-27
DE602007006266D1 (de) 2010-06-17
EP1916469A1 (de) 2008-04-30
ATE467083T1 (de) 2010-05-15

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