EP2180240B1 - Lampenöffnungsring - Google Patents

Lampenöffnungsring Download PDF

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Publication number
EP2180240B1
EP2180240B1 EP09173783A EP09173783A EP2180240B1 EP 2180240 B1 EP2180240 B1 EP 2180240B1 EP 09173783 A EP09173783 A EP 09173783A EP 09173783 A EP09173783 A EP 09173783A EP 2180240 B1 EP2180240 B1 EP 2180240B1
Authority
EP
European Patent Office
Prior art keywords
collar
main body
flange
configuration
lamp
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.)
Not-in-force
Application number
EP09173783A
Other languages
English (en)
French (fr)
Other versions
EP2180240A1 (de
Inventor
Mr. Iiker Hakki
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2180240A1 publication Critical patent/EP2180240A1/de
Application granted granted Critical
Publication of EP2180240B1 publication Critical patent/EP2180240B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04—Recessed bases
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04—Recessed bases
    • F21V21/047—Mounting arrangements with fastening means engaging the inner surface of a hole in a ceiling or wall, e.g. for solid walls or for blind holes

Definitions

  • THE PRESENT INVENTION relates to a collar for a lamp aperture, a kit including the collar, a wall to which the collar has been fitted, a building including the wall, and a method of fitting the collar.
  • Lamp fittings such as down-light fittings have become popular in recent years.
  • Down-light fittings comprise a hollow cylindrical body which houses the lamp, a flange at one end of the hollow cylindrical body, and an arrangement to secure the hollow cylindrical body to, for example, a ceiling such that the flange abuts the ceiling and the hollow cylindrical body is substantially located above the ceiling (in a roof space - for example).
  • Ceilings are usually constructed, at least in part, out of a layer of plaster (such as plasterboard).
  • a lamp aperture is created in the layer of plaster and a down-light fitting secured using the arrangement described above - the electrical supply and the like are usually provided above the ceiling.
  • DE10248705 discloses an adapter which attaches light components to a carrier that has an opening for light components and the adapter has a device for mounting the adapter on the carrier and a device for mounting light components on the adapter so that the light components can be mounted in different positions relative to the opening edge bounding the carrier's opening.
  • a first aspect relates to an aperture edging member for forming a substantially smooth or "flush" aperture within a surface member.
  • the edging member includes a substantially planar rim portion adapted to be attached to said surface member, a lip provided along one edge of said rim, and, a flange depending from said lip in a substantially transverse direction to said rim so as to fit within said aperture.
  • a second aspect relates to an aperture edging device which has an intermediate section with a pair of arms depending transversely therefrom to form a substantially c-shaped configuration to envelope the edge portion of the surface member.
  • the present invention seeks to ameliorate some of the problems associated with the prior art.
  • one aspect of the present invention provides a lamp aperture collar comprising: a substantially tubular main body having a flexible section and a first flange for at least partially supporting the collar when fitted to a lamp aperture, the first flange extending radially away from the main body, the main body being biased away from a first configuration and into a second configuration by the flexible section, a diameter of the main body being greater in the second configuration than in the first configuration, wherein the main body can be moved towards the first configuration to permit the collar to be placed into a lamp aperture and allowed to move towards the second configuration to fit the collar to the lamp aperture, wherein the flexible section comprises a portion of the main body which does not have the first flange.
  • the main body further comprises at least one additional flange which is spaced apart from the first flange, a gauge of the collar being defined by the distance between the first flange and at least one additional flange.
  • the flexible section comprises a portion of the main body which does not have an additional flange.
  • the main body has a substantially circular cross-section.
  • the main body is constructed out of plastic.
  • the collar further comprises a break in the tubular main body defined between two ends of the main body which substantially oppose each other across the break.
  • the break is filled with a compressible material which links the two ends of the main body.
  • the break is filled with a flexible material which links the two ends of the main body.
  • the collar further comprises a cap of intumescent material fitted to the main body of the collar and configured to house a lamp fitting therein.
  • Another aspect of the present invention provides a lamp fitting kit comprising: a lamp aperture collar according to the above; and a lamp fitting.
  • Another aspect of the present invention provides a wall having a lamp aperture to which a lamp aperture collar according to the above.
  • Another aspect of the present invention provides a building including a wall according to the above.
  • Figures 1 , 2 and 3 show an embodiment of the present invention.
  • the embodiment comprises a collar 1 having a main body 2.
  • the main body 2 is substantially tubular in shape, and has an outer circumferential surface 3 and an inner circumferential surface 4.
  • a first flange 5 extends radially away from the outer circumferential surface 3 of the main body 2 of the collar 1 in a direction which is substantially perpendicular to the outer circumferential surface 3.
  • a second flange 6 extends radially away from the outer circumferential surface 3 of the main body 2 of the collar 1 also in a direction which is substantially perpendicular to the outer circumferential surface 3 (i.e. the first 5 and second 6 flanges are substantially parallel to each other).
  • the tubular main body 2 preferably has a substantially circular cross-sectional shape; alternatively, the tubular main body 2 may have a substantially square cross-sectional shape.
  • the main body 2 may be formed from a number of substantially straight sides that form the desired cross-sectional shape. Different collars 1 having different shapes may be provided to fit different shaped lamp apertures.
  • the first 5 and second 6 flanges are separated from each other across the outer circumferential surface 3 of the main body 2 of the collar 1.
  • the distance between opposing inner surfaces 5a,6a of the two flanges 5,6 across the outer circumferential surface 3 of the collar 1 is a gauge of the collar 1.
  • the first 5 and second 6 flanges preferably extend away from the outer circumferential surface 3 of the main body 2 by a distance which is greater than about 2 mm. Preferably, this distance is not greater than about 5 cm and is conveniently approximately 1 cm.
  • the gauge of the collar 1 (as defined above) is substantially equal to the thickness of a typical layer of plaster 9 used (see figures 4-8 ), for example, to construct a ceiling. Indeed, the gauge of the collar 1 is marginally larger than the thickness of the relevant plaster layer 9 so as to allow the plaster layer 9 to be received by the collar 1 between the two flanges 5,6. It will be appreciated that different collars 1 having different gauges may be provided for use with different thicknesses of plaster layer 9.
  • the collar 1 gauge is suitable such that plasterboard with a thickness of 9.5 mm or 12.7 mm can be received between the two flanges 5,6 of the collar 1.
  • a collar 1 may have a gauge of approximately 12.8 mm or approximately 9.6 mm.
  • the gauge of the collar 1 is preferably less than 5 cm.
  • the main body 2 of the collar 1 is provided with a flexible section 7.
  • the flexible section 7 biases the collar 1 away from a first configuration into a second configuration. In the second configuration a diameter of the main body 2 of the collar 1 is greater than the diameter of the main body 2 of the collar 1 in the first configuration.
  • the flexible section 7 may be such that the collar 1 can be moved towards the first configuration manually.
  • the flexible section 7 comprises a section of the main body 2 which does not have a first 5 and/or a second 6 flange.
  • the arcuate length of the flexible section 7 is less than 5 cm.
  • more than one flexible section 7 is provided around the main body 2 of the collar 1.
  • Each of the plurality of flexible sections 7 need not be identical.
  • the main body 2 of the collar 1 includes a break 8.
  • the break 8 is defined between a first 8a and a second 8b edge of the main body 2 of the collar 1 (see figure 2 ).
  • the distance between the first edge 8a and the second edge 8b of the main body 2 of the collar 1 is less than 2 cm.
  • the break 8 comprises a section of flexible or compressible material in the main body 2 of the collar 1.
  • the main body 2 of the collar 1 is preferably constructed out of plastic.
  • the main body 2 of the collar 1 can be constructed out of a metal (such as stainless steel, steel, tin or aluminium).
  • a mixture of both a metal and plastic are used in the construction of the main body 2 of the collar 1.
  • the collar 1 may be fitted to a lamp aperture 10 (see figure 4 ) by applying a compressive force across a diameter of the main body 2 of the collar 1. This force flexes the flexible section 7 and closes the break 8 in the main body 2 of the collar 1. Thus, the overall diameter of the main body 2 of the collar 1 is reduced. In other words, the collar 1 is moved towards the first configuration as described above.
  • the collar 1 may then be inserted into a lamp aperture in a plaster layer such that the outer circumferential surface 3 of the main body 2 is substantially aligned with an inner circumferential surface 10a of the lamp aperture 10 (see figure 4 ).
  • the first flange 5 is preferably above the top surface of the plaster layer and the second flange 6 is preferably below a lower surface of the plaster layer.
  • the plaster layer 9 is received (to a greater extent if already partially received) by the space defined between the first 5 and second 6 flanges (and specifically the inner surfaces thereof 5a,6a) and the outer circumferential surface 3 of the collar 1.
  • the first flange 5 of the main body 2 at least partially prevents the collar 1 from falling through the lamp aperture under the force of gravity.
  • the first flange 5 supports at least part of the weight of the collar 1 when the collar 1 has been fitted.
  • the collar 1 is thus fitted to a lamp aperture 10 in a plaster layer 9.
  • the collar 1 remains secured to the plaster layer 9 by, for example, the abutment of the inner surfaces 5a,6a with the plaster layer 9 or, for example, the friction between the outer circumferential surface 3 of the collar 1 and the inner circumferential surface 10a of the lamp aperture 10.
  • the inner surface 5a at least partially supports the weight of the fitted collar 1.
  • the inner circumferential surface 4 of the main body 2 of the collar 1 defines, when fitted, a lamp aperture 10b (see figures 4 and 5 ).
  • a lamp fitting 11 such as a down-light fitting 11 (see figures 7 and 8 ) may be fitted to the collar 1 and plaster layer 9 in much the same manner as described above.
  • the collar 1 protects the plaster layer 9 from excessive damage from insertion and removal of the lamp fitting 11.
  • the collar 1 may also support at least part of the weight of the lamp fitting 11 which is fitted thereto.
  • the first flange 5 (and the inner surface 5a thereof) at least partially supports the weight of a lamp fitting 11 fitted to the collar 1.
  • the collar 1 when the collar 1 is fitted, there is still a degree of separation of the first edge 8a and the second edge 8b of the main body 2 across a break 8 and part of the collar 1 do not overlap each other around the lamp aperture 10.
  • the collar 1 is provided without one or both of the first 5 and second 6 flanges.
  • the collar 1 may be fitted to any suitable wall or panel.
  • a plaster layer 9 has been described by way of example only and any suitable layer of rigid building material may be used.
  • the wall may be part of a building which may be a domestic or commercial building.
  • a cap which may be attached to the collar 1 and this attachment may be a removable attachment.
  • the cap could take many different forms.
  • the cap is formed, at least in part, from an intumescent material.
  • the cap comprises a hood of woven intumescent material which expands when exposed to high temperatures such as a fire.
  • the cap may be configured to cover the rear of a lamp fitting 11 fitted to the collar 1 - i.e. to house a lamp fitting 11.
  • the cap is, in an embodiment, provided to form a barrier which substantially resists or prevents the passage of fire through the lamp aperture 10 to which the collar 1 is fitted into a space beyond the cap.
  • the cap and collar 1 form a barrier to the transmission of fire from one side of a panel to which the collar 1 is fitted to the other side of the panel.
  • the cap comprises a woven intumescent material
  • the gaps between the woven fibres provide ventilation during normal operation but are closed when the intumescent material expands - for example on exposure to fire.
  • the woven intumescent material may be a flexible material.
  • the cap may be bag-like in form with the open mouth of the bag-like cap being attached to the collar 1.
  • the cap may be attached to the collar 1 by an adhesive or may be attached to the collar 1 by the use of a clamp member which sandwiches the cap between the clamp member and the collar 1 or by any other suitable attachment arrangement.
  • the cap may be attached to the first flange 5, the second flange 6, the inner circumferential surface 4, and/or the outer circumferential surface 3.
  • the cap may be attached to surfaces 5a,6a and/or the cap may be attached to the opposing surfaces of the flanges 5,6.
  • the cap includes one or more apertures to provide additional ventilation during normal use (the or each aperture being configured such that the or aperture is closed by the expanding intumescent material - for example, if exposed to a fire).
  • the cap may also be formed from a heat resistant polymer or other material (e.g. steel) and may include an intumescent plate across one or more apertures defined by the cap.
  • the intumescent plate may comprise, for example, intumescent material sandwiched between two sheets of heat resistant material (one or which may be a wall of the cap).
  • One or more apertures may be provided through the intumescent plate (the apertures being open in normal use but closed if the intumescent material expands - for example, due to exposure to fire.
  • the cap preferably includes at least one flexible segment to allow the collar 1 to which it is attached to move between the first and second configurations.
  • the cap preferably includes a brim located adjacent the collar 1 to which is it attached.
  • the brim may, in an embodiment, extend beyond a remote edge of the first flange 5.
  • the intumescent material may expand (in this embodiment) to seal, substantially, any gaps between the collar 1 and panel to which it is fitted (for example, at the break 8 in the collar 1).
  • the brim is preferably flexible such that it can be deformed easily to allow manual fitting of the collar 1 to the lamp aperture 10 as described herein.
  • the brim if provided, my be located adjacent the first flange 5 or may be adjacent the second flange 6. In the latter case it will be appreciated that the cap may extend through the collar 1 or around the collar 1.
  • a cap with a brim may have the general appearance of a top hat.
  • a cap without a brim may have the general appearance of an inverted beaker.
  • the collar 1 includes a coating of intumescent material around the inner circumferential surface 4 of the collar 1.
  • This intumescent material coating may be provided in order to seal, substantially, the lamp aperture 10 in the event of a fire or to close any gap between a lamp fitting 11 fitted to the collar 1 and the inner circumferential surface 4 of the collar 1.
  • the collar 1 includes a coating of intumescent material around the outer circumferential surface 3 of the collar 1.
  • This intumescent material coating may be provided in order to ensure, substantially, a seal between the outer circumferential surface 3 of the collar 1 and the inner circumferential surface 10a of the lamp aperture 10 in the event of a fire.
  • a down-light fitting has also been used by way of example only and it will be appreciated that the same problem may exist in relation to other lamp fittings.
  • the present invention may also be used in relation to such fittings where appropriate.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Surgical Instruments (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Claims (12)

  1. Lampenöffnungsring (1), umfassend:
    einen im Wesentlichen röhrenförmigen Hauptkörper (2) mit einem elastischen Abschnitt (7) und einem ersten Flansch (5), um den Ring (1) zumindest teilweise zu lagern, wenn er in eine Lampenöffnung (10) eingepasst ist, wobei sich der erste Flansch (5) vom Hauptkörper (2) radial weg erstreckt, der Hauptkörper (2) durch den elastischen Abschnitt (7) von einer ersten Konfiguration weg und in eine zweite Konfiguration vorgespannt ist, der Durchmesser des Hauptkörpers (2) in der zweiten Konfiguration größer als in der ersten Konfiguration ist, wobei der Hauptkörper (2) in Richtung der ersten Konfiguration bewegt werden kann, um zu gestatten, dass der Ring (1) in eine Lampenöffnung (10) platziert und es erlaubt wird, dass er sich zur zweiten Konfiguration bewegt, um den Ring (1) in die Lampenöffnung (10) einzupassen, dadurch gekennzeichnet, dass der elastische Abschnitt (7) einen Bereich des Hauptkörpers (2) umfasst, der den ersten Flansch (5) nicht aufweist.
  2. Ring (1) nach Anspruch 1, wobei der Hauptkörper (2) weiterhin zumindest einen zusätzlichen Flansch (6) umfasst, der vom ersten Flansch (5) beabstandet ist, wobei eine Breite des Rings (1) durch den Abstand zwischen dem ersten Flansch (5) und zumindest einem zusätzlichen Flansch (6) begrenzt ist.
  3. Ring (1) nach Anspruch 1, wobei der elastische Abschnitt (7) einen Bereich des Hauptkörpers (2) umfasst, der keinen zusätzlichen Flansch (6) aufweist.
  4. Ring (1) nach irgendeinem vorhergehenden Anspruch, wobei der Hauptkörper (2) einen im Wesentlichen kreisförmigen Querschnitt hat.
  5. Ring (1) nach irgendeinem vorhergehenden Anspruch, wobei der Hauptkörper (2) aus Kunststoff hergestellt ist.
  6. Ring (1) nach irgendeinem vorhergehenden Anspruch, weiterhin umfassend eine Lücke (8) in dem röhrenförmigen Hauptkörper (2), die zwischen zwei Enden (8a, 8b) des Hauptkörpers (2) begrenzt ist, die einander über der Lücke (8) im Wesentlichen gegenüberliegen.
  7. Ring (1) nach Anspruch 6, wobei die Lücke (8) mit einem zusammendrückbaren Material gefüllt ist, das die zwei Enden des Hauptkörpers (2) verbindet.
  8. Ring (1) nach Anspruch 6, wobei die Lücke (8) mit einem elastischen Material gefüllt ist, das die zwei Enden des Hauptkörpers (2) verbindet.
  9. Ring (1) nach irgendeinem vorhergehenden Anspruch, weiterhin umfassend eine Kappe aus intumeszentem Material, die in den Hauptkörper (2) des Rings (1) eingepasst ist, wobei die Kappe einen Raum zum Unterbringen eines elektrischen Anschlusses begrenzt, die Kappe aus intumeszentem Material dazu konfiguriert ist, eine Belüftung des durch die Kappe begrenzten Raums während eines normalen Gebrauchs zu gestatten und die Übertragung von Feuer durch die Kappe zu verhindern.
  10. Lampenanschlussausrüstung, umfassend:
    einen Lampenöffnungsring (1) gemäß irgendeinem vorhergehenden Anspruch; und
    einen Lampenanschluss (11).
  11. Wand mit einer Lampenöffnung (10), an der ein Lampenöffnungsring (1) nach irgendeinem der Ansprüche 1 bis 9 angebracht ist.
  12. Gebäude mit einer Wand nach Anspruch 11.
EP09173783A 2008-10-22 2009-10-22 Lampenöffnungsring Not-in-force EP2180240B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0819354A GB2464697A (en) 2008-10-22 2008-10-22 A lamp aperture collar

Publications (2)

Publication Number Publication Date
EP2180240A1 EP2180240A1 (de) 2010-04-28
EP2180240B1 true EP2180240B1 (de) 2012-02-22

Family

ID=40097828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09173783A Not-in-force EP2180240B1 (de) 2008-10-22 2009-10-22 Lampenöffnungsring

Country Status (3)

Country Link
EP (1) EP2180240B1 (de)
AT (1) ATE546688T1 (de)
GB (1) GB2464697A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105318286A (zh) * 2014-06-02 2016-02-10 Rab照明设备公司 天花板缺口套圈及改造灯器具

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
GB2479894A (en) * 2010-04-28 2011-11-02 Harminder Singh Bhogal Two part ceiling aperture edge protector
GB2480481A (en) * 2010-05-20 2011-11-23 John David Flynn Hole edge protector
EP2581645B1 (de) * 2011-10-13 2014-08-27 Daxtor APS Modularer Strahler
GB2526144A (en) * 2014-05-16 2015-11-18 Mark Richard Stevens Aperture liner
US10704751B2 (en) 2014-11-26 2020-07-07 Ursatech Ltd. Downlight firestop
CN107965738A (zh) * 2017-09-30 2018-04-27 珠海成盛光电科技有限公司 一种可拼接组合的灯饰配件
US11794043B2 (en) * 2019-12-10 2023-10-24 Ursatech Ltd. Ceiling fixture firestop
JP7488751B2 (ja) * 2020-11-11 2024-05-22 未来工業株式会社 補助台座、その設置構造、及び器具設置構造
WO2023245224A1 (en) * 2022-06-20 2023-12-28 Watson Kevin Jason A collar

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US5045984A (en) * 1990-08-10 1991-09-03 Charles Trowbridge Mounting device for releasable securement to a panel
US5957572A (en) * 1997-06-27 1999-09-28 Lightolier Remodeler light fixture support structure and method
NZ510091A (en) * 1998-08-28 2002-11-26 John David Tilbury Burgess Aperture edging member and method
US6719438B2 (en) * 2002-05-09 2004-04-13 Tripar Inc. Spring for securing trims in recessed lighting housings
DE10248705B4 (de) 2002-10-18 2006-02-23 Siteco Beleuchtungstechnik Gmbh Adapter zur Befestigung von Leuchtenbauteilen und zugehörige Leuchte
EP1462710A1 (de) * 2003-03-25 2004-09-29 Miguel Soriano Sola Flächenbündige Zierblende für einen Halogen- oder ähnlichen Scheinwerfer
US20060101741A1 (en) 2004-11-12 2006-05-18 Andrew Rae Recess light fixture adapter and method
DE102005032264B4 (de) * 2005-07-04 2008-04-30 Siteco Beleuchtungstechnik Gmbh Leuchteneinbaurahmen mit Befestigungsvorrichtung
JP2008066142A (ja) * 2006-09-07 2008-03-21 Matsushita Electric Works Ltd 埋込型照明器具
GB0713264D0 (en) * 2007-07-09 2007-08-15 Microlights Ltd Improvements in and relating to luminaries

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105318286A (zh) * 2014-06-02 2016-02-10 Rab照明设备公司 天花板缺口套圈及改造灯器具
CN105318286B (zh) * 2014-06-02 2019-07-16 Rab照明设备公司 天花板缺口套圈及改造灯器具

Also Published As

Publication number Publication date
EP2180240A1 (de) 2010-04-28
ATE546688T1 (de) 2012-03-15
GB2464697A (en) 2010-04-28
GB0819354D0 (en) 2008-11-26

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