EP2020563A1 - Luminaire - Google Patents

Luminaire Download PDF

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Publication number
EP2020563A1
EP2020563A1 EP07015209A EP07015209A EP2020563A1 EP 2020563 A1 EP2020563 A1 EP 2020563A1 EP 07015209 A EP07015209 A EP 07015209A EP 07015209 A EP07015209 A EP 07015209A EP 2020563 A1 EP2020563 A1 EP 2020563A1
Authority
EP
European Patent Office
Prior art keywords
luminaire according
housing
light
section
front surface
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.)
Granted
Application number
EP07015209A
Other languages
German (de)
English (en)
Other versions
EP2020563B1 (fr
Inventor
Hartmut S. Engel
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
Priority to EP07015209.5A priority Critical patent/EP2020563B1/fr
Priority to CA002638382A priority patent/CA2638382A1/fr
Priority to MX2008009848A priority patent/MX2008009848A/es
Priority to US12/184,454 priority patent/US20090034253A1/en
Publication of EP2020563A1 publication Critical patent/EP2020563A1/fr
Application granted granted Critical
Publication of EP2020563B1 publication Critical patent/EP2020563B1/fr
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
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/005—Refractors for light sources using microoptical elements for redirecting or diffusing light using microprisms
    • 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
    • F21V17/20—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 toggle-action levers
    • 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
    • F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
    • 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
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a lamp with a cup-shaped housing for holding bulbs and associated electrical components as well as for positive recording and releasable attachment of a filament.
  • Luminaires of this type are well known and are used both indoors and outdoors.
  • Object of the present invention is to make lights of the type mentioned while creating a distinctive aesthetic appearance constructively simple, universally applicable and in lighting terms such that on the one hand large-area glare-free direct light and on the other hand at least one radial indirect light component is obtained.
  • the luminous body comprises a first base region corresponding at least essentially to an axial extension of the housing and an outer region adjoining it, which widens continuously from the base region in the form of an oblique surface and either directly or via a vertical wall section into an approximately perpendicular to the luminaire body central axis running front surface passes, and in that the illuminant (s) is / are positioned and / or designed in such a way that both the base region and the front surface substantially Direct light of the bulbs are applied over the entire area and the entire oblique surface is essentially located only in the grazing light area.
  • the luminous element Due to the special shape of the luminous element and the targeted positioning of the bulbs, it is possible to uniformly apply direct light to the essentially flat front surface and to configure the luminance differences between the front surface and the inclined surface in such a way that between the inclined surface and the housing an indirect light-emitting radial light region is produced which, due to the lower luminance, has an inclined surface emphasized and differentiated from the direct light-supplying front surface.
  • the radial light section is preferably obtained by virtue of the fact that the base region of the luminous element has a fastening section engaging in the pot-shaped housing and a translucent, direct-light-applied section located between the fastening section and the oblique surface.
  • the receiving area for the luminous means or the luminous means is located below the cross-sectional plane of the luminous element corresponding to the beginning of the oblique surface and preferably below the translucent section preceding the beginning of the oblique surface, since this is an important Condition for the characteristic loading of the different areas of the filament with direct light or grazing light is.
  • the axial height of the radial light portion is smaller than the axial height of extending to the front surface inclined surface portion, wherein the axial height of the radial light portion is in preferred embodiments about 30% to 60% of the height of the inclined surface portion.
  • the inclined surface with the bottom surface of the housing preferably includes an angle of less than 50 °, and this angle is in advantageous embodiments in the range of about 25 ° to 45 °.
  • the transition between the attachment portion and the translucent, the radial light-supplying portion is designed in the form of a connected with a diameter increase, in particular rectangular step.
  • the luminous body and the housing engage flush with each other, so that the radial light section is optically clearly delimited, on the one hand by the housing and on the other hand by the inclined surface located only in the grazing light region.
  • a disc-shaped element in particular an annular disc is positioned in particular in a circular lamp in the region of the radial light portion and with respect to the inclined surface with predeterminable axial distance, which extends at least substantially parallel to the front surface and whose diameter is greater than the diameter of the front surface ,
  • annular disc Since this annular disc is located in the radial light range, a recessed with respect to the front surface luminous surface is created at a distance from the fully illuminated front surface, both aesthetically to a particularly characteristic appearance of the lamp leads as well as in terms of lighting technology, a desirable additional benefits, which is especially evident when the radially inner portion of the annular disc is formed as at least partially open, translucent area and thus the back of the disc location mounting surface for the lamp can be illuminated.
  • the annular disc is preferably connectable via coupling elements with the housing, so that they can be attached at any time to the basic version of the lamp if necessary.
  • the annular disc it is possible to form the annular disc as a top wall of an annular space at least partially surrounding the housing, wherein the annular space thus formed for receiving functional components, such. a ballast or a motion detector can be used.
  • a particularly preferred embodiment of the invention is characterized by an embodiment in the form of a ceiling or flush wall recessed luminaire with a reflector pot which surrounds the filament on all sides with a radial distance and the opening plane extends at least substantially corresponding to the plane of the front surface of the filament.
  • the reflector pot either on a predeterminable angle or approximately parallel to the inclined surface of the filament extending bottom surface, which merges in the height range of the inclined surface in a vertical wall section, or he has a located in the housing bottom, radially outwardly extending and within the vertical Projection of the front surface ending base surface, which is followed by a sloping wall region, which in turn merges into a vertical wall section.
  • the oblique wall region of the reflector pot can be a function of the desired visible luminance distribution steeper or less steep than the oblique surface of the filament are selected.
  • the radial light portion is deflected through the reflector pot in such a way that the light emitting surface of the filament increases by characteristic diffused diffused light and by the different luminances in the field of the filament and in the reflector cup increased aesthetic differentiation for use as General lighting without special Entblendungsing is obtained.
  • a particularly advantageous in terms of achievable light output embodiment of the invention which can be used both in the case of round lights as well as in the case of rectangular lights, is characterized in that the filament is not integrally formed, but consists of several, in particular glued or welded together parts in which at least the front surface comprises a layer structure with a microprism disk whose outer prisms are covered by a preferably crystal-clear outer surface and on whose inner side a diffuser film is preferably provided.
  • This layer structure forming the front surface expediently becomes directly or via a frame enclosing the layer structure positively connected to a matched end portion of the filament, and both parts are welded together in particular.
  • the adjoining the front surface, preferably formed by the end portion of the filament region of the filament is formed as a circumferential luminous surface.
  • the use of the layer structure mentioned leads in comparison to an embodiment in opal glass or a corresponding plastic material to a substantial, for example, up to 50% increase in the light output.
  • Both in the case of a round and a rectangular configuration of the lamp can be used as a light bulbs in particular ring or rod-shaped fluorescent lamps or compact fluorescent lamps with a plurality of light rods.
  • the LED lighting technology can be used in an energy-efficient manner by attaching a plurality of LEDs to at least one preferably reflective support surface and positioning the support surface in the housing-side region of the radial light section of the luminous element.
  • the particular desired light color can be ensured by using commercially available LED's, with appropriate equipment also RGB illumination is possible.
  • the luminous element with the housing via a plurality of mounted on the housing toggle lever buckles can be coupled.
  • These toggle clamps not only allow a simple and when using a seal between the light and body and absolutely tight connection between the two bodies, but they also have the advantage that they are easily operable when the lamp from a reflector pot is surrounded, because these latches are accessible for operation via the gap between the luminous element and reflector pot.
  • the plurality of luminous means are mutually spaced apart in a plane parallel to the front surface of the luminous element arranged LEDs is provided, each LED is associated with a special intent optics, which causes both an axial bundling and a lateral emission of light, the LED's with associated attachment optics are preferably positioned in the base region or at least partially in the base region of the filament.
  • the number and distribution of the LED's with associated attachment optics is chosen so that the obtained by the intent optics axially directed light beam illuminate the entire surface of the front surface, i. essentially adjacent to one another or overlapping on the front surface in their edge regions.
  • the direct light emerging laterally out of the respective optical attachment at least predominantly strikes the radial light section of the luminaire, so that, in accordance with the basic principle of the invention, the radial light section and the front surface are in turn subjected to direct light.
  • Fig. 1 shows the basic structure of a luminaire according to the invention, which comprises an existing particular satin-finished opal glass or a corresponding plastic luminous body 2 and an associated cup-shaped housing 1.
  • the luminous element 2 is formed by a base part designated by the general reference numeral 3 and an outer region 4, wherein the Exterior 4 consists of an inclined surface region 5 and a front surface 6.
  • the transition between the inclined surface region 5 and substantially flat or only slightly outwardly curved front surface 6 takes place in the illustrated example over a curved region, wherein the front surface 6 and inclined surface 5 at an acute angle to each other.
  • transition between the inclined surface region 5 and front surface 6 may be provided as a transition region between an inclined surface region 5 and front surface 6 cylindrical region of predetermined height, which is acted in contrast to the inclined surface region 5 not with grazing light, but especially with direct light from the bulbs.
  • a radial light section 9 which merges via a transition stage 10 into a fastening section 8, which engages into the housing 1 and can be fixed to the housing 1, follows on the inclined surface region 5 of the luminous element 2.
  • the one or more bulbs 7 are designed and / or positioned so that both the base region 3 and the radial light portion 9 and the front surface 6 are substantially fully exposed to direct light and the inclined surface 5 of the filament 2 is located substantially only in the grazing light range.
  • a fluorescent lamp FC is used as the luminous means 7, but depending on the dimensioning of the luminaire, two or more fluorescent lamps and also planar LED arrangements can be used instead of one fluorescent lamp, preferably in the same plane are located.
  • the transition stage 10 between radial light section 9 and attachment section 10 of the existing opal glass or a suitable plastic material filament is selected and dimensioned so that the housing 1 is flush with the radial light portion 9, whereby a defined optical boundary of the radial light portion 9 and a positive integration of the housing 1 in the overall structure of the lamp is obtained.
  • the radial light section 9 which is directly exposed to light, provides a defined proportion of indirect light on the room side, which, depending on the installation situation, appears in addition to the direct light supplied by the front surface.
  • the axial height of the radial light section 9 is preferably smaller than the axial height of the inclined surface section extending up to the front surface 6, and in particular is approximately 30 to 80% of the height of the inclined surface section.
  • the inclined surface 5 includes an angle smaller than 50 °, and this angle is preferably in particular in the range of 25 ° to 45 °.
  • FIG. 2 shows the embodiment according to Fig. 1 supplemented by an annular disc 11 coupled to the housing 1, which is positioned at the level of the transitional stage 10 and has a diameter which is significantly greater than the outer diameter of the front surface 6.
  • the annular disc 11 is a more or less high, but in comparison to the front surface 6 always lower luminance, so that the overall flat character of the light even more emphasized and it is possible by creating a kind of backlight the front surface 6 to make even more apparent. This is for example advantageous if the front surface has a special marking, such as a house number representation.
  • Fig. 3 shows a development of the light after Fig. 2
  • the annular disc 11 is formed as a top wall of the housing 1 at least partially enclosing annular space 13.
  • the elements required to create the annular space are preferably plastic mold elements which are connected in a simple manner to corresponding coupling walls of the annular disk 11 can.
  • the annular space created in this way is preferably used to hold functional elements, such as a ballast or a motion detector.
  • a ballast 34 may also be attached to the bottom of the housing 1.
  • Fig. 4 shows a particularly advantageous embodiment of the invention in the form of a ceiling or flush wall recessed luminaire with a reflector pot 14 which surrounds the filament 2 on all sides with a radial distance and whose opening plane 15 extends at least substantially corresponding to the plane of the front surface 6 of the filament 2.
  • the reflector pot 14 has an approximately parallel to the oblique surface 5 of the filament 2 extending or steeper bottom surface 16, which merges in the height range of the inclined surface 5 in a vertical wall portion 33. Both the bottom surface 16 and the vertical wall portion 33 are uniformly exposed to light via scattering and reflection effects, so that within the reflector pot 14 no shading effects occur.
  • the reflector pot 14 has a located in the region of the housing bottom, outwardly extending and radially within the vertical projection of the front surface 6 ending base surface 22, to which a slanted wall portion 23 connects, which merges into a vertical wall portion 33.
  • the angle between the housing bottom and the inclined wall region is preferably greater than the angle between the housing bottom and the inclined surface of the luminous element opposite the inclined wall region.
  • ceiling or wall-mounted recessed luminaires can be provided as a light source on a support surface 18 groups of LEDs, wherein the particular reflective executed support surface 18 is positioned in the housing-side region of the radial light portion 9 of the filament 2.
  • the support surface 18 may be mounted on a functional component, in particular a voltage converter.
  • Fig. 5 an embodiment of a recessed luminaire in a rectangular or square shape.
  • polygonal lights can be realized according to the construction principle according to the invention.
  • lighting means 7 are preferably used compact fluorescent lamps. However, this type of light source does not constitute a restriction.
  • the respectively most suitable luminous means can be used, in particular also LEDs, optionally with special additional optics.
  • the basic structure of the rectangular luminaire after Fig. 5 corresponds to the basic structure of the previously described round light after Fig. 4 ,
  • the luminous element 2 is detachably connected to the formally adapted housing 1 and comprises a radial light section 9, an inclined surface region 5 and a front surface 6.
  • the filament 2 is not formed in one piece, but in several parts, in particular the front surface 6 is formed by a separate surface element, which is layered and a micro-prismatic comprises, whose outer prism surface is covered by a preferably crystal-clear outer layer and on the inside of which preferably a diffuser film is provided.
  • the layer structure may also be modified depending on the particular requirements, e.g. in that instead of a crystal-clear, the micro-prism surface from contamination protective top surface a cover layer is selected with specially selected light transmission properties.
  • the intended for the front surface 6 multi-layer structure preferably has a peripheral frame 20 which may be integrally formed on the outer glass surface and is a separate unit, which can be positively bonded or welded to a receiving end portion 21 of the filament 2.
  • the adjoining the inclined surface region 5 end portion 21 is translucent and forms a front light area complementary narrow side luminescent surface.
  • Fig. 6 shows a further embodiment of the invention in the form of a rectangular lamp in built-in version analogous to the embodiment according to Fig. 4 with an edge flange 35 having a rectangular mounting tray. Also in this case, a design is chosen instead of a one-piece filament, in which the front surface 6 is designed as a separate component, which is inserted into an adjoining the inclined surface region 5 end portion or placed on this and in connection with Fig. 5 already described structure has.
  • Fig. 7 shows details of the structure of a according to Fig. 5 or 6 executed recessed light.
  • the reflector pot 14 has a base surface 22 which extends outward in the region of the bottom of the housing 1 and ends radially, but within the vertical projection of the front surface 6, adjoining which is a sloping wall region 23 which merges into a vertical wall section 33 which the usual, the respective mounting wall cross-flange 35 has.
  • the in this case preferably turn multi-part formed luminous body 2 is glued or welded via its vertical wall portion 17 with the peripheral edge of the front surface 6, which is formed by a micro prismatic disc, the inside is usually associated with a diffuser film and the outside, ie on the side of the microprisms are located, is provided with a crystal clear cover 26, the extends in this embodiment, also on the vertical wall portion 17 and this engages over like a hood.
  • the edge portion formed by the vertical wall portion 17 is designed as a light emitting surface, since this vertical wall portion 17 is positioned so as to be located in the direct light area of the respective bulbs.
  • the detachable connection of luminous element 2 and housing 1 is preferably via toggle lever buckles 27, which are easy to operate and have the advantage that they are accessible via the space between the luminous body 2 and reflector pot 14 and virtually blind.
  • a recessed grip 36 is provided in the base surface 22.
  • Such a tension lock consists of a housing 1 to be fastened bearing block 28 to which a lever 29 is pivotally mounted with its one end, while the other end of this lever 29 is pivotally mounted on a longitudinally elastic actuating and locking lever 27, with his from Operating end facing away a clip attachment 32 of the filament 2 engages over and thus pulls the filament 2 against the housing 1 during closing or clamping of the actuating lever 27.
  • a seal is preferably provided which is required for outdoor use and which serves to prevent the ingress of dust in the interior.
  • the clamping lock can be secured by means of an insertable via a blocking opening 31 in the operating lever 27 screw.
  • At least the part 30 of the actuating lever 27 located in the area of the radial light section 9 consists of light-transmitting material.
  • the actuating lever is located in the tensioned state in a matching recess of a Radialleuchtvidebene extending from the inclined surface 5 of the filament 2 down and runs flush with the housing.
  • Fig. 8 shows a designed in the form of a surface-mounted, but also in the sense of the preceding explanations as a recessed design variant of the invention, in which a plurality of mutually spaced on a support surface 18 arranged LED's 19 is provided as a lighting means, each LED 19 a specially designed attachment optics 37th is assigned, which ensures both an axial bundling and a lateral radiation of the light generated by the respective associated LED.
  • LED's here wide emitting LED's, preferably LED's are used with a beam angle of about 120 °.
  • the support surface 18 for the LED's 19 with associated attachment optics 37 is preferably positioned within the lamp body so that the laterally emitted by the attachment optics 39 light hits at least partially on the radial light portion 9 of the lamp.
  • a diaphragm plate 38 Adjacent to the support surface 18, a diaphragm plate 38 is preferably provided, the passage openings for the frustoconical elements of translucent material existing attachment optics 37 has. By positioning this diaphragm plate 38, the proportion of the laterally emitted light can be influenced, which strikes the radial light section 9 as direct light.
  • the number and distribution of the LED's on the support surface 18 can be chosen such that the axially directed light beam on the front surface 6 of the lamp adjacent to each other or at least in the edge regions overlap each other and thus front surface side, a high and uniform luminance is generated.
  • the luminaire according to the invention can also be designed as a suspended luminaire, in which case an at least partially open housing bottom can be provided in order to achieve an additional indirect light output via a ceiling reflection.
  • All embodiments of the luminaire according to the invention are due to their flatness also suitable as an information carrier and can therefore be used for example as pictogram or house number lights use.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP07015209.5A 2007-08-02 2007-08-02 Luminaire Not-in-force EP2020563B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07015209.5A EP2020563B1 (fr) 2007-08-02 2007-08-02 Luminaire
CA002638382A CA2638382A1 (fr) 2007-08-02 2008-07-30 Luminaire
MX2008009848A MX2008009848A (es) 2007-08-02 2008-07-31 Luminaria.
US12/184,454 US20090034253A1 (en) 2007-08-02 2008-08-01 Luminaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07015209.5A EP2020563B1 (fr) 2007-08-02 2007-08-02 Luminaire

Publications (2)

Publication Number Publication Date
EP2020563A1 true EP2020563A1 (fr) 2009-02-04
EP2020563B1 EP2020563B1 (fr) 2015-01-14

Family

ID=38710538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07015209.5A Not-in-force EP2020563B1 (fr) 2007-08-02 2007-08-02 Luminaire

Country Status (4)

Country Link
US (1) US20090034253A1 (fr)
EP (1) EP2020563B1 (fr)
CA (1) CA2638382A1 (fr)
MX (1) MX2008009848A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116146936B (zh) * 2023-04-04 2023-06-27 广东基地照明有限公司 一种智能环境调节低蓝光护眼教室灯罩

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB517450A (en) * 1938-07-28 1940-01-30 Ernst Hirsch Improvements in electric lamp fittings
DE3633976A1 (de) 1986-04-09 1987-10-29 Wila Leuchten Gmbh Deckenstrahler mit umfeldaufhellung
US5173810A (en) 1991-08-21 1992-12-22 Aisens Co., Ltd. Light transmitting lens for use with a photoelectric sensor
EP0855553A2 (fr) * 1997-01-24 1998-07-29 Effetre Industriale S.p.A. Luminaire avec diffuseur de verre soufflé
WO2001059365A1 (fr) 2000-02-14 2001-08-16 Zumtobel Staff Gmbh Dispositif d'eclairage
US20030201704A1 (en) 2002-04-25 2003-10-30 Camarota Richard J. Halogen globe light system

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US1731019A (en) * 1927-07-13 1929-10-08 Thos J Corcoran Lamp Co Closure fastener and reflector seal for lamps
GB410089A (en) * 1932-11-02 1934-05-02 Gen Electric Co Ltd Improvements in globes or shades for electric lighting
US3130949A (en) * 1962-07-02 1964-04-28 Century Lighting Inc Support for lighting and building fixtures and the like
US5537304A (en) * 1994-11-10 1996-07-16 Dal Partnership Lighting fixture canopy
US5950340A (en) * 1999-02-02 1999-09-14 Woo; Fay Kan-Kyone Sign box
DE10011516A1 (de) * 2000-03-09 2001-09-20 Siteco Beleuchtungstech Gmbh Leuchtensystem
GB2360353B (en) * 2000-03-18 2004-09-01 Thorpe F W Plc Lamp assembly
WO2002044612A2 (fr) * 2000-11-29 2002-06-06 Zumtobel Staff Gmbh Lampe pourvue d'une vitre transparente
US7252412B2 (en) * 2003-08-12 2007-08-07 Koninklijke Philips Electronics, N.V. Luminaire and method of lighting by means of a luminaire
US7109880B2 (en) * 2004-03-12 2006-09-19 Desa Ip Llc Ceiling mount light with 360-degree motion sensor
US7121684B2 (en) * 2004-06-10 2006-10-17 Genlyte Thomas Group, Llc Garage light luminaire with circular compact fluorescent emergency lighting optics
US7121689B2 (en) * 2004-12-09 2006-10-17 Hubbell Incorporated Lighting fixture having spring mounted louvers
US7604380B2 (en) * 2006-06-30 2009-10-20 Dialight Corporation Apparatus for using heat pipes in controlling temperature of an LED light unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB517450A (en) * 1938-07-28 1940-01-30 Ernst Hirsch Improvements in electric lamp fittings
DE3633976A1 (de) 1986-04-09 1987-10-29 Wila Leuchten Gmbh Deckenstrahler mit umfeldaufhellung
US5173810A (en) 1991-08-21 1992-12-22 Aisens Co., Ltd. Light transmitting lens for use with a photoelectric sensor
EP0855553A2 (fr) * 1997-01-24 1998-07-29 Effetre Industriale S.p.A. Luminaire avec diffuseur de verre soufflé
WO2001059365A1 (fr) 2000-02-14 2001-08-16 Zumtobel Staff Gmbh Dispositif d'eclairage
US20030201704A1 (en) 2002-04-25 2003-10-30 Camarota Richard J. Halogen globe light system

Also Published As

Publication number Publication date
CA2638382A1 (fr) 2009-02-02
EP2020563B1 (fr) 2015-01-14
US20090034253A1 (en) 2009-02-05
MX2008009848A (es) 2009-02-27

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