EP2299165A2 - Lampe avec un élément guide de lumière et au moins un diffuseur disposé sur son côté - Google Patents

Lampe avec un élément guide de lumière et au moins un diffuseur disposé sur son côté Download PDF

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Publication number
EP2299165A2
EP2299165A2 EP10189879A EP10189879A EP2299165A2 EP 2299165 A2 EP2299165 A2 EP 2299165A2 EP 10189879 A EP10189879 A EP 10189879A EP 10189879 A EP10189879 A EP 10189879A EP 2299165 A2 EP2299165 A2 EP 2299165A2
Authority
EP
European Patent Office
Prior art keywords
light
housing
edge
luminaire according
diffuser
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Withdrawn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
EP10189879A
Other languages
German (de)
English (en)
Other versions
EP2299165A3 (fr
Inventor
Gerald Ladstätter
Anton Mündle
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 Lighting GmbH Austria
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 EP2299165A2 publication Critical patent/EP2299165A2/fr
Publication of EP2299165A3 publication Critical patent/EP2299165A3/fr
Withdrawn legal-status Critical Current

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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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • 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
    • 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
    • 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
    • F21Y2113/00—Combination of light sources

Definitions

  • the invention relates to a luminaire according to the preamble of claim 1.
  • a lamp of this kind is in the DE 44 43 916 C1 described.
  • a light guide in the middle position and two diffusers are arranged on both sides of the Lichtabstrahlelements on the emission side, which are located in the plane of a housing opening. It acts according to Fig. 4 around substantially flat diffusers in the form of discs, each extending with the light guide in the plane defined by the housing opening.
  • the invention has for its object to improve the light pipe and / or light emission of the diffuser in a lamp of the type specified.
  • the lamp should have a flat construction.
  • the shaping furthermore has a flank sloping down towards the light-guiding element.
  • the diffuser thus has on both sides in each case an edge, wherein the rising flank faces away from the light guide element and the falling flank faces the light guide element. This makes it possible, depending on the steepness of the flanks, to influence the light pipe or the light emission in the main emission direction or to the side toward which the flanks are respectively facing. It is possible to backlight the edge of the housing in the region of the rising flank and lighten the surroundings of the lamp, In particular, when the rising edge is steep and with the plane of the housing opening includes a relatively large angle, the z. B. may be up to about 90 °.
  • the light-guiding element is arranged in such a way that a surface of the light-guiding element which faces away from the lamp lies at least substantially in the plane of the housing opening.
  • a recessed luminaire can be effected in this way that the light overall has a very flat appearance and yet illuminate surrounding wall or ceiling areas.
  • the luminaire is designed as a ceiling luminaire and accordingly with respect to the lamp is defined a plane in which a surrounding ceiling area is provided for the built-in lamp and the surface of the light guide is arranged at least substantially in this plane ,
  • the z. B. may be up to about 80 ° or up to about 90 °, it is possible to selectively emit light laterally inwards or to couple light from the light guide, which benefits the light emission in the rising edge.
  • the effectiveness of the laterally outward and / or laterally inward light emission or light conduction can be adjusted to desired sizes by selecting the steepness of the respective flank or flanks. With increasing steepness, the proportion of the light that is radiated laterally outward or laterally radiated in or passed through, larger.
  • the molding may have the shape of a laterally outwardly and / or laterally inwardly directed roof whose roof surfaces are flat or convex or concave.
  • a narrow or common ridge can be realized, which can be square or rounded and z.
  • B. may be arranged in the light guide facing or remote edge region.
  • the steepness can also be progressive or degressive starting from the laterally inner and / or laterally outer edge of the flank.
  • the laterally outer and the laterally inner edge of the diffuser in a plane which is parallel to the plane of the housing opening or in the plane of the housing opening.
  • a reflector in the housing, which preferably has the shape of a curved tunnel.
  • the subclaims contain features which further improve the light emission or light conduction, in particular while ensuring a flat construction, and also ensure simple and cost-effective production.
  • a trough-shaped housing 2 having a housing opening 2a, which is bounded by the free edge 2b of the housing 2, a arranged in the housing 2 and behind the housing opening 2a reflector 3, one or more, z.
  • the through the housing opening 2a substantially limited and activated by the reflector 3 Hauptabstrahl Club B of the lamp 1 consists of a middle, determined by the light guide 7 functional area B 1 and two lateral by the diffusers 8 specific effect areas B2, depending on the design of the lamp side can be delimited against each other or can merge or overlap one another.
  • the trough-shaped housing 2 is preferably a flat housing whose height h1 is less than about 1/5 of in Fig. 1
  • the height h1 may be about 1/5 to 1/10 of the width b, and in the embodiment is preferably about 1/7 to 1/8 of the width b.
  • the visible against the main emission direction 6 shape of the lamp 1 can be compact, for example rectangular or square.
  • the lamp 1 is of elongated shape, ie, their in Fig. 1 visible length L is a multiple of its width b, z. B. 2 to 3 times the width b.
  • Visible width dimensions of the effect and functional areas B1, B2 can be about the same or different sizes.
  • the equal widths of the effect areas B2 are slightly larger than the width of the functional area B1.
  • the lamp 1 described so far may be a recessed luminaire, in particular a recessed ceiling luminaire, or a surface-mounted luminaire, in particular a Ceiling mounted luminaire or a suspended luminaire, in particular a Decken rehabilitationmony act.
  • the housing 2 has a bottom wall 2c and a circumferential wall 2d projecting on its circumference, which, in the case of a quadrangular, in particular oblong, shape of the luminaire 1, consists of four opposite side walls, of which - in the embodiment with an elongated shape - the longitudinal sides opposite one another Side walls with 2e and the narrow side walls are denoted by 2f.
  • a recessed light has a projecting from the free edge 2b of the housing 2 outwardly and dash-dotted lines indicated peripheral flange 9 which rests in the installed state on the contact side of the lamp 1 in a mounting hole receiving body, for example on the underside of a ceiling R1, in Fig. 2 is also hinted.
  • the edge flange 9 may be stiffened and stabilized at its free edge by an angling.
  • the light guide 7 is thus in this case almost flush with the ceiling. This is in Fig. 2 indicated. In this way it can be achieved that the surface of the luminaire 1, which is visible in the installed state, appears very flat.
  • the reflector 3 is also curved in a flat shape and flat-topped upwards. It extends from one side wall to the opposite side wall, here between the side walls 2e, where it may be formed to stabilize at its lower edges, each with an upwardly bent or angled edge strips 3b, which also in the attachment or support of the reflector 3 can serve.
  • visible curvature of the reflector 3 may be substantially uniform and formed by a circular arc portion. In this case, the reflector 3 abut at its ridge on the bottom wall 2c, so that it is approximately a tangent of the circular arc shape.
  • the edge side wall portions 3a of the reflector include with the plane E of the housing opening 2a an acute angle W1, which is about 30 to 60 °, in particular about 40 to 45 °.
  • W1 which is about 30 to 60 °, in particular about 40 to 45 °.
  • the at least one lamp 5 is preferably a fluorescent lamp, which is formed in particular in an elongate lamp 1 by at least one straight extending tube (fluorescent tube).
  • the light-guiding element 7 is blazed longitudinally, in particular in the case of an elongated luminaire 1. It can be z. B. a known per se grid with cross blades or a perforated plate or a diffuser.
  • the diffusers 8 are preferably equal to each other and mirror-inverted with respect to the vertical longitudinal center plane 11 and arranged. It therefore requires the description of only one of the two diffusers. 8
  • the light guide 7 and / or the diffuser 8 can or can each z. B. be formed by a glass or plastic disc, which decouples diffused light on its side facing the room.
  • This may be a disk having on its inside or outside a decoupling structure, which causes the diffuse coupling out of the light on the side facing the space to be illuminated.
  • the structure may e.g. B. by the longitudinal and / or transverse rows arranged tooth or pyramidal elevations may be formed, which may be formed on the disc itself or on a transparent film which is attached to the respective broad side of the disc or the diffuser 8.
  • the diffuser 8 extending in the associated functional area B2 from the housing edge 2b to the light-guiding element 7 has a housing 12b to the space R to be illuminated projecting beyond 12, the housing edge 2b superior height is designated h2.
  • the actual height of the diffuser 8 is preferably greater than its height h2, however, the diffuser 8 extends with this height range into the housing. It has a laterally outwardly directed wall 8a, which extends into the cavity of the housing 2 and can rest against the inside of the opposite broad-side housing wall 2e.
  • the formation 12 extends parallel to the vertical longitudinal center plane 11, wherein it extends in the present elongated lamp 1 - like the housing 2, the reflector 3 and the light guide 7 - in the form of a profile in the longitudinal direction. In the context of the invention, the lamp 1 may also have a round shape. In this case, the formation 12 extends in the circumferential direction of the lamp first
  • the formation 12 is bounded by the opposite sides by flanks 13a, 13b, of which the laterally outwardly directed flank 13a to the light guide 7 is formed towards rising and the laterally inner edge 13b is formed sloping towards the light guide 7.
  • the rising angle W2 ( Fig. 4 ) of the rising edge 13a and the falling angle W3 of the falling edge 13a may be formed in a range between zero or a few degrees and substantially 90 °.
  • the flanks 13a, 13b may extend straight in the vertical cross-section or be concave or convex, in particular be rounded concave or convex, as shown in the figures. In a rounding, the angles can also go from 0 °, as it Fig. 2 at the inner edge and Fig. 4 at the outer edge of the diffuser 8 shows.
  • Seen in cross-section of the lamp 1 thus has the shape 12 in the form of a roof, which extends parallel to the vertical longitudinal center plane 11 or - in a circular lamp 1 - in the circumferential direction of the lamp 1.
  • the roof surfaces of the roof formed by the flanks 13a, 13b preferably have a common ridge F, which extends parallel to the vertical longitudinal center plane 11 or in the circumferential direction of the lamp 1 and may be formed by a ridge edge or a convex firstrunding. In the area of the ridge F, however, the flanks 13a, 13b can also merge into one another continuously, as will be described later Fig. 8 shows.
  • the light pipe through the diffuser 8 and the light emission of the diffuser 8 can be designed differently and thus adapted in consideration of special requirements.
  • the proportion of transmitted or radiated light increases with a direction transverse to the main emission direction 6.
  • the light emission with increasing angle W2 is increasingly suitable for illuminating the housing edge 2b and thus illuminating the surroundings of the luminaire 1. This purpose is achieved in particular when the angle W2 is about 75 ° to about 90 °, as it is Fig. 2 shows.
  • the angle W3 of the falling edge 13b is on average about 5 ° to about 30 °, in particular about 10 ° to about 15 °.
  • the angle W3 of the falling edge 13b is greater than the angle W2 of the rising edge 13a.
  • the light rays in the Area of the sloping edge 13b increasingly transversely to the main emission direction 6 passed through the associated edge wall 8b and radiated from her.
  • the light can be radiated and / or irradiated in the region of the falling flank 13b.
  • the incident light is beam components of the light emitted by the light-guiding element 7.
  • the incident light amplifies the light emission in the region of the wall of the rising flank 13a.
  • the angle W3 of the falling edge 13b can be up to about 90 °.
  • the drawing shows an angle W3 of about 60 ° to about 85 °, in particular about 70 ° to about 80 °.
  • the diffuser 8 can decouple diffuse light at its side facing the space to be illuminated.
  • the light-guiding element 7 and / or the diffuser 8 by a disc from teillicht fashion as glass or plastic, be formed.
  • the walls of the flanks 13a, 13b consist of a disk formed in accordance with the flank shape.
  • end walls 8c can be arranged at the ends of the diffuser, the upper edge extending from the upper edge of the laterally outer wall 8a to the inner edge of the laterally inner wall 8b, as it Fig. 2 shows.
  • the diffuser 8 has a hollow box shape.
  • the thickness d1, d2 of the disc-shaped light-guiding element 7 and the disc-shaped diffuser 8 can be z. B. about 3 to 10mm, in particular about 5 to 7mm, amount.
  • Fig. 4 is the local end wall 8c formed according to the local shape of the molding 12, wherein the upper edge of the end wall 8c z. B. from the upper edge of the sloping edge 13b z. B. can extend straight to the outer edge of the rising edge 13 a.
  • the mirror image with respect to the vertical longitudinal center plane 11 opposite diffuser 8 is formed corresponding mirror image and arranged so that it does not require a special description of the opposite diffuser 8.
  • the light-guiding element 7 is preferably held in a jack 15, in which it is from the inside ( Fig. 2 ) or outside from one end ( Fig. 4 ) can be inserted.
  • Fig. 2 are arranged in the region of the inner edges of the diffusers 8 upwardly projecting and integrally formed webs 16, the z. B. extend to the middle distance range of between the diffuser 8 and the reflector 3 approximately.
  • the webs 16 may also be dimensioned lower, z. B. only to form the jack 15, which is formed on each side by the associated web 16 and the light guide 7 under cross-edge web 17.
  • an operating device 18 for the electrical supply can advantageously be arranged and fastened, eg. B. on the inside of the bottom wall 2c.
  • the light-guiding element 7 may be carried by the diffusers 8 located next to it.
  • the light guide 7 and the diffusers 8 z. B. be formed in one piece. It can z. B. the inner edges of the diffusers 8 and the webs 16 through a connecting plate 7a ( Fig. 4 ), which forms the light-guiding element 7 or which covers the light-guiding element 7 inserted in the lateral jack slots as a transparent disk.
  • Fig. 5 to 10 show particularities of the formation of the walls 8a, 8b of the flanks 13a, 13b, and indeed in mutually independent embodiments, so that the variants can be present individually or in combination.
  • the outer surface of the flank 13b may be formed as a reflection surface 19, so that the light guide 7 against the Reflection surface 19 radiated light is reflected in the room R, as is Fig. 5 also shows.
  • the wall of the flank 13 b may be formed so that it at least partially couples light incident from the light guide 7 and / or from the opposite flank 13 b according to the arrow 20, which in the between the wall 8 a of the rising flank 13 a and the opposite reflector 3 irradiated limited light chamber K and radiates directly or after reflection on the reflector 3 in the region of the rising edge 13a, so that the radiation is amplified.
  • the Lichtleitstege 21 are arranged on the inside of the wall 8b and z. B. by substantially parallel to the main radiating and transverse thereto, preferably substantially parallel to the plane of the housing edge 2b extending surfaces 21a, 21b formed, which preferably define triangular cross-sections of the Lichtleitstege 21.
  • a diffuser 8 or the associated constructional unit or both diffusers 8 can be pivoted to the opposite housing wall, eg in the region of their laterally outer edges, about hinge axes 22a extending parallel to these edges. B. 2f, and thus be stored up and swung down. This can be z. B. realized by arranged in the end regions of the diffuser 8 joints 22 between the diffuser 8 and the adjacent side wall.
  • holding elements for holding the respective diffusers 8 or the structural unit, holding elements, not shown, for holding the relevant dissuvant 8 or the structural unit in the pivoted functional position are present, which is not shown for reasons of simplification.
  • the flanks 13a, 13b may have different shapes.
  • the embodiment according to Fig. 7 differs from the embodiment according to Fig. 2 z. B. in that the rising edge 13a is rounded to a convex and on the other hand, a smaller average angle W2 includes the z. B. may be about 75 ° to about 85 °.
  • flanks 13a, 13b are rounded convex, in particular rounded in a circular arc, wherein they have the shape of a common arc, which may be a circular arc.
  • Fig. 9 shows a flank shape in which the falling edge 13b extends substantially or at least in the region of the ridge F is substantially straight or slightly curved and tangentially into a convex, z. B. circular arc, curved rising edge 13a passes.
  • Both the rising edge 13a and the falling edge 13b are formed with a relatively steep slope, wherein the angles W2 and W3 are greater than each about 60 °.
  • the angle W3 of the embodiment according to Fig. 4 and 5 correspond.
  • the angle W2 can z. B. be about 90 ° or slightly smaller, z. B. about 80 °, in particular about 85 ° to about 90 °.
  • the edge regions of the rising edge 13a and the falling edge 13b each with their the space R to be illuminated edges facing a ridge F1, F2, between which a third edge 13c extends, which may extend straight or curved convex and a to the vertical longitudinal center plane 11 closed angle W4 with the plane of the housing opening 2a may include, which may be up to about 15 °, in particular about 5 ° to about 10 °.
  • the ridges F1, F2 are in different height positions.
  • the laterally outer and laterally inner edges or 9, the edges of the flanks 13a, 13b facing away from the space to be illuminated may be arranged in one or in different height levels.

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)
EP10189879.9A 2006-02-01 2007-01-31 Lampe avec un élément guide de lumière et au moins un diffuseur disposé sur son côté Withdrawn EP2299165A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006004579 2006-02-01
DE102006019924A DE102006019924A1 (de) 2006-02-01 2006-04-28 Leuchte mit einem Lichtleitelement und wenigstens einem davon seitlich angeordneten Diffusor
EP07711420.5A EP1979671B1 (fr) 2006-02-01 2007-01-31 Éclairage avec un élément guide de lumière et au moins un diffuseur disposé sur son côté

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP07711420.5A Division EP1979671B1 (fr) 2006-02-01 2007-01-31 Éclairage avec un élément guide de lumière et au moins un diffuseur disposé sur son côté
EP07711420.5A Division-Into EP1979671B1 (fr) 2006-02-01 2007-01-31 Éclairage avec un élément guide de lumière et au moins un diffuseur disposé sur son côté
EP07711420.5 Division 2007-01-31

Publications (2)

Publication Number Publication Date
EP2299165A2 true EP2299165A2 (fr) 2011-03-23
EP2299165A3 EP2299165A3 (fr) 2016-10-12

Family

ID=38057600

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07711420.5A Not-in-force EP1979671B1 (fr) 2006-02-01 2007-01-31 Éclairage avec un élément guide de lumière et au moins un diffuseur disposé sur son côté
EP10189879.9A Withdrawn EP2299165A3 (fr) 2006-02-01 2007-01-31 Lampe avec un élément guide de lumière et au moins un diffuseur disposé sur son côté

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07711420.5A Not-in-force EP1979671B1 (fr) 2006-02-01 2007-01-31 Éclairage avec un élément guide de lumière et au moins un diffuseur disposé sur son côté

Country Status (4)

Country Link
US (1) US7862199B2 (fr)
EP (2) EP1979671B1 (fr)
DE (1) DE102006019924A1 (fr)
WO (1) WO2007088037A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009004706U1 (de) * 2009-04-06 2010-09-02 Zumtobel Lighting Gmbh Leuchte mit optischem Element
JP2013062163A (ja) * 2011-09-14 2013-04-04 Toshiba Lighting & Technology Corp 照明装置
CN106574756B (zh) 2014-03-27 2021-02-05 飞利浦灯具控股公司 灯具
US10190750B1 (en) * 2015-11-30 2019-01-29 Cooper Technologies Company Troffer luminaire with an arched lens
US10156344B2 (en) * 2016-08-19 2018-12-18 Focal Point, Llc Lighting fixture with drop lens
US9677744B1 (en) * 2016-11-28 2017-06-13 Cooper Technologies Company Component housing band in luminaires

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443916C1 (de) 1994-12-09 1996-05-09 Zumtobel Licht Reflektoranordnung für eine Leuchte

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US2244737A (en) * 1937-12-31 1941-06-10 Adlake Co Lighting fixture
US2602135A (en) * 1948-03-13 1952-07-01 Patent License Corp Dome lighting fixture
GB662005A (en) * 1949-01-08 1951-11-28 Pittsburgh Reflector Company Improvements in or relating to lighting fixtures
US3647148A (en) * 1969-12-11 1972-03-07 Holophane Co Inc Veiling glare control with luminaires
US4768140A (en) * 1987-05-19 1988-08-30 Roman Szpur Indoor light fixture for high intensity lamp
US5806968A (en) * 1997-05-15 1998-09-15 Tsai; Tien-Tzu Lamp combination
DE10006409A1 (de) * 2000-02-14 2001-08-16 Zumtobel Staff Gmbh Leuchte
DE20104346U1 (de) 2001-03-14 2001-06-07 Wila Patent Und Lizenzgmbh Sev Leuchte
US6733154B1 (en) * 2002-05-31 2004-05-11 Genlyte Thomas Group Llc Indirect luminaire
US7229191B1 (en) * 2004-06-07 2007-06-12 Genlyte Thomas Group Llc Industrial up light reflector

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE4443916C1 (de) 1994-12-09 1996-05-09 Zumtobel Licht Reflektoranordnung für eine Leuchte

Also Published As

Publication number Publication date
EP1979671A1 (fr) 2008-10-15
EP2299165A3 (fr) 2016-10-12
EP1979671B1 (fr) 2015-11-04
US7862199B2 (en) 2011-01-04
DE102006019924A1 (de) 2007-08-02
US20090103315A1 (en) 2009-04-23
WO2007088037A1 (fr) 2007-08-09

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