WO2002090828A1 - Dispositif d'eclairage - Google Patents

Dispositif d'eclairage Download PDF

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Publication number
WO2002090828A1
WO2002090828A1 PCT/EP2002/004603 EP0204603W WO02090828A1 WO 2002090828 A1 WO2002090828 A1 WO 2002090828A1 EP 0204603 W EP0204603 W EP 0204603W WO 02090828 A1 WO02090828 A1 WO 02090828A1
Authority
WO
WIPO (PCT)
Prior art keywords
illuminant according
extruded profile
end cap
illuminant
shaped
Prior art date
Application number
PCT/EP2002/004603
Other languages
German (de)
English (en)
Inventor
Rüdiger Kreckel
Jörg KORSCHINSKY
Original Assignee
Kreckel Ruediger
Korschinsky Joerg
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 Kreckel Ruediger, Korschinsky Joerg filed Critical Kreckel Ruediger
Publication of WO2002090828A1 publication Critical patent/WO2002090828A1/fr

Links

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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/015—Devices for covering joints between adjacent lighting devices; End coverings
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • 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
    • F21Y2113/10—Combination of light sources of different colours

Definitions

  • the invention relates to a lamp according to the preamble of claim 1.
  • a housing is known from DE 199 03 668 A.
  • backlights with multicolored fluorescent lamps in the complementary colors red, green and blue as well as in the color white are used to provide any color illumination depending on the control of the by backlighting a projection film or by direct projection onto a wall surface To produce fluorescent lamps.
  • a well-known backlight from DESPAR consists of a box-shaped sheet metal housing that is open at the top.
  • the fluorescent lamps are arranged side by side in the sheet metal housing and fastened in luminaire bases which are attached to the front ends of the sheet metal housing.
  • the mains voltage and the control signals are supplied on one long side of the housing.
  • the known lights are arranged in a horizontal or vertical position in a matrix and accordingly their position within the matrix and controlled by the light control according to their matrix position.
  • the known backlight is attached to vertical / horizontal mounting rails or truss construction, on which the luminaire housing is screwed to the front ends via rigid tabs. These tabs must be reassembled in accordance with the intended use. Attaching the lights in this way is tedious and time-consuming and is particularly annoying when backlights are used on exhibition stands, where rapid mounting and dismounting of the backlights is necessary.
  • the object of the invention is to provide a lamp of the type mentioned, in which a quick assembly and disassembly is made possible.
  • the invention is based on the consideration of providing a luminaire housing with a U-shaped cross section, the open end faces of which are closed, for example, by two end caps.
  • Each end cap is delimited by two side walls, a base and a rear wall.
  • each end cap has on its open end face a connecting flange which is adapted to the cross section of the housing.
  • the housing and the end caps attached to it represent stable, load-bearing components, the lines of action of the centers of gravity lying in the same axis as the connection points of the fastening tabs.
  • the mounting brackets are designed so that they can be hooked to one another in a simple, fast manner, which facilitates the matrix-shaped attachment of the lights to wall rails, cross members or frame structures.
  • Each fastening tab can preferably be held in its two usable positions with a special snap mechanism.
  • One embodiment of an end cap has an integrated one in the base area Handle bar, which allows easy transportation of the lamp with one hand.
  • the housing preferably consists of an extrusion profile.
  • the use of an extruded profile with attached end caps according to the invention offers a multitude of advantages in terms of production, since the fastening of the fluorescent lamps, the reflector and the lens, and the supply of the power supply and Control signals for the fluorescent lamps is much simpler than in the housing according to the prior art described above.
  • the heat dissipation from the extruded profile with its wall channels in the side walls and in the base profile is considerably greater than in the known housing made of bent sheet metal as a result of the enlargement of the heat-absorbing surfaces thereby achieved.
  • This improved heat dissipation in turn allows the use of highly effective fluorescent lamps with a smaller diameter than in the case of the prior art.
  • T5 fluorescent lamps with a diameter of only 16 mm can be used.
  • FIG. 1 is a vertical section through the housing formed as an extruded profile of an elongated lamp according to the invention.
  • FIGS. 2 and 3 are perspective views of a preferred embodiment of an end cap for the housing according to FIG. 1, the fold-out fastening tab being removed in this illustration;
  • FIGS. 2 and 3 are side views of the end cap according to FIGS. 2 and 3 with mounting bracket attached;
  • Fig. 5 is a perspective view of one of the end cap
  • FIGS. 2 and 3 removed mounting bracket
  • FIG. 6 is a plan view of the connection of two fastening tabs of adjacent lamps for their horizontal mounting on mounting rails;
  • Fig. 7 is a vertical section through the connection of two
  • Fig. 8 is a vertical section similar to Fig. 7, but only for that
  • the exemplary embodiment shown in FIG. 6 of a lamp in the form of an elongated fluorescent background light 100 has a housing which preferably consists of an extruded profile (FIG. 1) and two end caps 20 which close off the open end faces of the housing or extruded profile 1.
  • a preferred embodiment for end caps 20 is shown in FIGS. 2 and 3.
  • the extruded profile 1 is preferably made of aluminum and has an approximately U-shaped cross section with two side legs la and a bottom profile lb.
  • the transition area lc between the side legs la and the bottom profile lb is chamfered at an angle of, for example, 45 °.
  • the extruded profile 1 is made of aluminum, the ones shown in FIGS.
  • end caps 20 also made of aluminum, preferably cast aluminum, so that thermal stresses between the extruded profile 1 and the end caps 20 are avoided.
  • a seal can be introduced between the extruded profile 1 and the end caps 20.
  • each end cap 20 has two side walls 22, a bottom 24 and a rear wall 26.
  • the side walls 22 and the rear wall 26 are constructed in the form of superimposed wall segments which extend parallel to the floor 24 and have different wall thicknesses in order to stiffen the end cap 20.
  • a U-shaped wall anchor 23 is on the placed on the upper ends of the side walls 22 and the rear wall 26 and connected in one piece to these walls 22, 26.
  • the front, free end faces of the side walls 22, the bottom 24 and the wall anchor 23 are integrally connected to a U-shaped fastening flange 21, the dimensions of which almost match the cross section of the extruded profile 1 (FIG. 1) except for an intended projection.
  • Each fastening flange 21 has six through bores 21a, which are distributed over the circumference of the flange 21 as shown in FIG. 2.
  • the uppermost through-bore 21a in the region of the free end of each side leg la of the flange 21 passes through the leg of the wall anchor 23 lying behind it.
  • cross-threaded bolts are preferably inserted into the ends of six wall channels 11 to 16, which extend in extension of the six through holes 21 a of each end cap 20 in the side walls 1 a and in the bottom profile 1 b of the extruded profile 1.
  • These six wall channels 11 to 16 have an approximately kidney-shaped cross section, the transverse threaded bolts, not shown, being attached transversely to the longitudinal axis of the wall channels 11 to 16.
  • Six through-head screws, not shown, are passed through the through holes 21a from the rear wall 26 of each end cap 20 and are screwed into the transverse threaded bolts in the six wall channels 11 to 16, which are aligned therewith.
  • the cross-threaded bolts transmit the clamping forces which act transversely to the longitudinal axes of the wall channels 11 to 16. form-fitting via the wall channels 11 to 16 on the extruded profile 1.
  • the end caps 20 fastened to the extruded profile 1 together with the extruded profile 1 form the housing 1, 20 of the fluorescent background light 100.
  • FIG. 6 shows two such lights 100, which are on a mounting rail 30 are attached. This attachment will be explained in more detail later.
  • flat end plates can also be used, which are attached to the end faces of the extruded profile 1.
  • a total of eight small longitudinal channels 110 to 118 are provided in the extruded profile 1, the cross-sectional area of which is considerably smaller than the cross-sectional area of the wall channels 11 to 16.
  • Self-tapping screws for fastening the flat end plates are screwed into the ends of the longitudinal channels 110 to 118.
  • the illustration according to FIG. 1 shows fluorescent lamps 2, 3, 4 and 5 indicated by dashed lines, preferably in the colors red, green, blue and white, which can also be seen in the top view according to FIG. 6.
  • the fluorescent lamps 2, 3, 4 and 5 are arranged next to one another in the interior of the housing 1, 20, such that the fluorescent lamps 2 to 5 extend in the longitudinal direction of the extruded profile 1 to the rear wall 26 (FIG. 2) of each connecting cap 20.
  • the ends of the fluorescent lamps 2 to 5 are mounted in plug sockets 2a to 5a (FIG. 6), which are arranged on the front edges of the reflector 6.
  • the plug bases 2a to 5a for the fluorescent lamps 2 to 5 are preferably inserted from the underside of the reflector 6 through corresponding cutouts in the reflector 6 and clamped in these cutouts, for example, with the help of elastic tongues, which are located on the outer circumference of the connector base 2a to 5a.
  • fluorescent lamps 2 to 5 are used with a smaller diameter than in the case of background lights according to the prior art.
  • fluorescent lamps of the type T5 with a 16 mm diameter are used, which are described in the company brochure mentioned at the beginning "The new FH S - fluorescent lamp system” from Osram GmbH.
  • These T5 fluorescent lamps are particularly distinguished by the fact that they are characterized by the Reduction of the tube diameter by 40% with a much smaller reflector than conventional fluorescent lamps of the type T8 with the same radiation properties.
  • the luminous flux optimum which is at 25 ° C ambient temperature for T8 lamps, is shifted to 35 ° C ambient temperature, which means that in conjunction with a 5% increase in the luminous efficiency, the luminous flux of the lamp 100 equipped with the T5 lamps is significantly higher than in the case of a lamp according to the prior art equipped with T8 lamps.
  • T5 fluorescent lamps with a tube diameter that is 40% smaller than that of T8 lamps enables correspondingly more compact dimensions of the housing 1, 20 compared to known lamps which are equipped with T8 lamps.
  • Such a downsizing of the housing is made possible by the inventive construction of an extruded profile 1 and two end caps 20, since the extruded profile 1 has the required capacity for sufficient heat dissipation.
  • This is primarily the purpose of Wall channels 11 to 16 already mentioned, as well as further wall channels 11a, 13a, 14a and 16a shown in FIG. 1 with a rectangular cross section, of which two wall channels 11a and 16a are arranged in the side walls 1a and two wall channels 13a and 14a in the base profile 1b.
  • the wall channels 11 to 16 are open to the inner surface 17 of the side walls la or to the inner surface 18 of the floor profile 1b.
  • the longitudinal channels 11a, 13a, 14a and 16a are open to the outside of the extruded profile 1.
  • the channels 11 to 16, 11a, 13a, 14a and 16a increase the heat absorption area of the extruded profile 1 by a multiple compared to a full profile, so that the capacity of the extruded profile 1 is sufficient for heat dissipation in order for the housing 1, 20 to have a more compact design to counter the resulting higher energy density.
  • the rectangular cross-section of the channels 11a, 13a, 14a and 16a in the exemplary embodiment according to FIG.
  • the cross-section of the channels 11 to 16 is approximately kidney-shaped, which is due to the adaptation to the shape of the cross-thread bolts already mentioned for fastening the end caps 20 is conditional.
  • the outer surface of the extruded profile 1 is ribbed or roughened in the embodiment according to FIG. 1 in the region of the channels 11 to 16, 11a, 13a, 14a and 16a in order to further increase the heat radiation from the outside of the extruded profile 1 into the environment.
  • a U-shaped, dashed line reflector 6 is arranged, which the light emitted by the fluorescent lamps 2 to 5 down into the from the free top of the Extruded profile 1 formed light exit opening reflected. Furthermore, the reflector 6 Light of lamps 2 to 5 already mixed at the location of lamps 2 to 5.
  • the light exit opening of the housing 1, 20 can optionally be covered with the dashed-line lens 7 or a protective grille 7a indicated in FIG. 6.
  • the light emerging from the extruded profile 1 is indicated in FIG. 1 by arrows 8.
  • the colored fluorescent lamps 2 to 5 their complementary colors red, green and blue and the color white can be used to produce any colors on a projection surface illuminated by the lamp.
  • the U-shaped reflector 6 is preferably made of deep-drawn sheet metal, which is preferably matt lacquered with white paint.
  • the side legs of the U-shaped cross-sectional profile of the reflector 6 encompass the two external fluorescent lamps 2 and 5 and are bent at their free ends to grip edges 6a.
  • the grip edges 6a give the reflector 6 greater mechanical strength in the longitudinal direction and can be conveniently hung in peg-shaped wall webs 9 of the extruded profile 1.
  • the wall webs 9 are formed in the area of the upper, free ends of both side walls la of the extruded profile 1 by boot-shaped cutouts 10 in the inner surface 17 of the side walls la, the "boot tip" of the cutouts 10 being formed by the longitudinal channels 110 and 117 already mentioned.
  • threaded bores in the form of thread strips 19 are formed in the bottom profile 1b thereof, which are used to hold screw fastening elements (not shown) on the underside of the reflector 6.
  • Hyperbolic or parabolic shapes can preferably be placed on the reflector 6 for color mixing on objects further away Reflectors are placed, which are not shown.
  • a refractor plate provided with prisms can be provided as the diffusing screen 7.
  • the refractor plate preferably consists of translucent (milky) high-pressure polyethylene.
  • the diffusing screen 7 or the protective grille 7a (FIG. 6) preferably extends beyond the ends of the extruded profile 1. Within the end caps 20 (FIG. 2), the diffusing screen 7 or the protective grille 7a is guided in grooves 23a (FIG.
  • the housing 1, 20 is closed off at the top by the diffuser 7, it being possible to seal the housing 1, 20 by additionally using circumferential sealing lips at the edges of the diffuser 7. If no diffusing screen 7 is used, the protective grille 7a (not shown) can be inserted into the inner grooves 10a of the extruded profile 1 and the grooves 23a of the end caps 20 in order to prevent damage or the falling out of the fluorescent lamps 2 to 5.
  • end caps 20 according to FIGS. 2 and 3 is, as the detailed representations according to FIGS. 3 to 6 can be removed, designed in a novel and advantageous manner, which the function of the end caps 20 beyond the mere covering of the open end faces of the extruded profile 1 significantly expanded.
  • a side wall 22 of the end cap 20 has a rectangular region 22c with a reduced wall thickness, in which two through bores 22a, 22b are formed.
  • the two through bores 22a, 22b are used to carry out the contact shoes of connectors (not shown) for the power supply and the control voltages of the fluorescent lamps 2 to 5.
  • plug sockets (not shown) in fastening bores are located behind the through holes 22a, 22b 22d attached.
  • the connector bases are provided for receiving the contact shoes of the connectors mentioned.
  • the connector bases are electrically connected in a manner not shown to an electronic circuit for the power supply and control of the fluorescent lamps 2 to 5. This electronic circuit is preferably attached as a flat component on the bottom 24 inside the end cap 20.
  • a grip strip 24a is attached at a distance from the fastening flange 21 (FIG. 3), which projects beyond the underside of the bottom 24 and thus forms a standing edge for the end cap 20.
  • the grip strip 24a is preferably connected in one piece to the base 24 and allows the light 100 to be easily transported by one person with one hand. 02/090828
  • bearings 23a are integrally formed on the back of the end cap 20 as finger-like extensions of the wall anchor 23, each of which stands with its base widened to a base on the outside of the rear wall 26.
  • the bearings 23a have through bores 23b which are aligned with one another and are used for pushing through a shaft 28 (FIG. 4) for a pivotable fastening tab 27.
  • the fastening tab 27 lies flush on the outside of the rear wall 26 of the end cap 20. In the pivoted-out state, the fastening tab 27 runs parallel to the longitudinal plane of the lamp 100, as can be seen from the top view according to FIG. 6.
  • the fastening tab 27 is held in its folded or unfolded state, so that it is possible to hang the lamp 100 in a supporting structure or in another similar lamp 100.
  • the fastening tab 27 shown in perspective in FIG. 5 has a flat center piece 270, which has two rectangular cutouts 271 near its side edges and a central rectangular cutout 272 between the cutouts 271. Furthermore, below the central cutout 272, a through hole 276 is made in the central piece 270, which is designed in the form of an elongated hole which engages in the central cutout 272.
  • Three separate bearing sleeves 273 are formed on the upper edge of the middle piece 270. The three bearing sleeves 273 fit into the distances between the bearings 23a (FIG. 3), their bores 274 being aligned with the through bores 23b of the bearings 23a, so that the shaft 28 (FIG. 4) can be pushed through the bores 23b, 274 ,
  • the flat middle piece 270 of the fastening tab 27 is provided with two shoes 275, which are preferably integrally formed on the middle piece 270.
  • the shoes 275 are bent vertically upward with respect to the plane of the middle piece 270 and each have a wedge-shaped toe 275a.
  • the shoe tips 275a of both shoes 275 face each other so that they "look" at each other. Because of this design, the shoes 275 are able to act as hooks in two different directions, on the one hand perpendicular to the plane of the middle piece 270 and on the other hand parallel to the plane of the middle piece 270. This special property of the shoes 275 will be explained in more detail below.
  • the swung-out tabs 27 of both lights 100 become partially overlapped.
  • the length of the shoes 275 is less than the length of the cutouts 271, so that when two fastening tabs 27 partially overlap, the two shoes 275 of the one fastening tab 27 engage in the two cutouts 271 of the other fastening tab 27 or can hook.
  • the slight offset of the two shoes 271 towards the inside prevents the fastening tab 27 from slipping out of its fixation.
  • the lamp 100 is thus held securely by means of the non-positive and positive connection of the two fastening tabs 27 without any further fastening means.
  • the through bores 276 of both tabs 27 also overlap, so that locking screws can be inserted through the overlapping bores 276 and screwed with nuts.
  • both lights 100 When two adjacent lights 100 are positioned horizontally as shown in FIG. 6, the swung-out tabs 27 of both lights 100 are only butted against one another without overlapping.
  • the shoes 275 of both tabs 27 positioned at the top in FIG. 6 extend with their full length through an elongated hole 31 of a support rail 30 and are then pulled downward, so that the wedge-shaped shoe tips 275a of both Hook upper shoes 275 onto the lower end of slot 31. With the hooking of the two upper shoes 275 into the lower end of the elongated hole 31, the lights 100 are fixed in their horizontal and vertical positions.
  • the fastening element 40 according to FIG. 7 has the already mentioned clip 41, the two ends of which are bent into hooks. These hook-shaped ends of the clip 41 are - seen in the drawing plane of FIG. 6 - inserted from above into the cutouts 272 of both tabs 27. From the underside of the support rail 30, a cap screw 42 is inserted with its threaded portion 44 upward through the elongated hole 31 of the support rail 30 and through a central bore in the clamp 41 and screwed to a nut 43. If necessary, a compression spring (not shown) can be provided between the nut 43 and the upper side of the fastening element 40, which enables the fastening element 40 to be assembled quickly. The lamp 100 is already fixed in position by this compression spring before the nut 43 is tightened. If only one luminaire 100 is installed a fastening element 40 according to FIG. 8 with a shorter clamp 41 is used.

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

Abstract

L'invention concerne des dispositifs d'éclairage (100) contenant, dans un boîtier à section transversale (1) sensiblement en forme de U, plusieurs tubes fluorescents (2, 3, 4, 5) multicolores disposés à côté l'un de l'autre. Les faces frontales ouvertes du boîtier sont fermées par des caches terminaux (20). L'invention vise à permettre une pose et une dépose rapide des tubes, quelle que soit la position de montage du dispositif. A cet effet, chaque face frontale ouverte des caches terminaux (120) est dotée d'une bride d'assemblage (21), qui est adaptée à la section transversale du boîtier (1) et qui sert à relier le cache terminal (20) à la face frontale du boîtier. La face externe de la paroi arrière (26) de chaque cache terminal comporte une bride de fixation (27).
PCT/EP2002/004603 2001-05-03 2002-04-25 Dispositif d'eclairage WO2002090828A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/EP2001/004973 WO2002090827A1 (fr) 2001-05-03 2001-05-03 Boitier pour systeme d'eclairage de fond
EPPCT/EP01/04973 2001-05-03

Publications (1)

Publication Number Publication Date
WO2002090828A1 true WO2002090828A1 (fr) 2002-11-14

Family

ID=8164399

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2001/004973 WO2002090827A1 (fr) 2001-05-03 2001-05-03 Boitier pour systeme d'eclairage de fond
PCT/EP2002/004603 WO2002090828A1 (fr) 2001-05-03 2002-04-25 Dispositif d'eclairage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/004973 WO2002090827A1 (fr) 2001-05-03 2001-05-03 Boitier pour systeme d'eclairage de fond

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT16453U1 (de) * 2018-06-29 2019-10-15 Mpw Warenhandel E U Montageschiene für Einbauleuchten und/oder elektrische Installationen und/oder Sensoren zum Einbau in Betonschalungen oder Wänden mit Putzaufbau
CN113075853B (zh) * 2021-03-16 2022-05-20 江西欧迈斯微电子有限公司 投影膜和投影设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE550687A (fr) *
US5479327A (en) * 1994-10-21 1995-12-26 Chen; Kuo L. Lighting fixture for aquariums
US5861633A (en) * 1997-08-04 1999-01-19 Con-Trol-Cure, Inc. Irradiator apparatus
DE19903668A1 (de) 1999-01-31 2000-08-17 Walter Holzer Flache Reflektorleuchte für Leuchtstofflampen
DE20118370U1 (de) * 2001-05-03 2002-01-24 DESPAR Licht- und Bühnentechnik GmbH, 55129 Mainz Gehäuse für eine Hintergrundleuchte

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9823482D0 (en) * 1998-10-28 1998-12-23 Hopper John D Lighting apparatus
DE29913818U1 (de) * 1999-08-06 2000-01-20 Alfred Pracht Lichttechnik GmbH, 35232 Dautphetal Leuchte

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE550687A (fr) *
US5479327A (en) * 1994-10-21 1995-12-26 Chen; Kuo L. Lighting fixture for aquariums
US5861633A (en) * 1997-08-04 1999-01-19 Con-Trol-Cure, Inc. Irradiator apparatus
DE19903668A1 (de) 1999-01-31 2000-08-17 Walter Holzer Flache Reflektorleuchte für Leuchtstofflampen
DE20118370U1 (de) * 2001-05-03 2002-01-24 DESPAR Licht- und Bühnentechnik GmbH, 55129 Mainz Gehäuse für eine Hintergrundleuchte

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