EP2753866A1 - Leuchte mit folie zur veränderung der abstrahlcharakteristik - Google Patents
Leuchte mit folie zur veränderung der abstrahlcharakteristikInfo
- Publication number
- EP2753866A1 EP2753866A1 EP12769890.0A EP12769890A EP2753866A1 EP 2753866 A1 EP2753866 A1 EP 2753866A1 EP 12769890 A EP12769890 A EP 12769890A EP 2753866 A1 EP2753866 A1 EP 2753866A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- housing
- luminaire
- lamp
- cover
- 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
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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
-
- 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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
-
- 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
-
- 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
- F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
-
- 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
-
- 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
- F21V17/101—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 permanently, e.g. welding, gluing or riveting
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
-
- 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
-
- 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
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
- F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/403—Lighting for industrial, commercial, recreational or military use for machines
-
- 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
- F21Y2101/00—Point-like light sources
-
- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
-
- 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 present invention relates to a luminaire according to the preamble of patent claim 1.
- Such lights usually have a housing in which a plurality of bulbs is arranged. On the front side, the housing in the radiation direction is provided with a cover disc ver ⁇ closed. In the emission direction in front of the lamps, a film is also arranged, which changes the emission characteristics of the lamps, for example, the emitted light homogenized or directed in a particular direction.
- a film for homogenization of the emitted light may for example, be necessary if arranged in the housing of lamps produce a plurality of beams of light, which would then cause, for example, when using the lamp as Ar ⁇ beits- or machine light a plurality of shadows cast. If this is to be avoided, a so-called diffuser film is necessary, which diffuses the individual radiation cone by refraction of light and thus prevents the individual Scrucfe.
- a sol ⁇ che film also cause a shaping of the Abstrahlkegel the individual ⁇ nen bulbs, these deflect, for example, to a be ⁇ voted beam angle.
- the problem with high-energy lamps is that the materials used for the luminaire expand to different extents due to their different coefficients of thermal expansion and thus thermal stresses are induced.
- thermal stresses can in particular when the film is glued to the cover plate or clamped in the housing to a wave or bubble the film lead, so that the light-technical properties of the film due to the high thermal coefficient of expan ⁇ coefficient of the film which lies between 70 and 80 x 10 -6 1 KT lost.
- the thermal expansion coefficient of a Ausdeh- is made of aluminum housing in the region of 23 x 10 -6 1 and KT at the used disks between 3 and 4.5 x 10 -6 KT. 1 Because of this large differences can, in particular, the strong expansion of the film to out.
- the ⁇ chen structural distortions, ie bladder or Wellenbil- extension lead can, in particular, the strong expansion of the film to out.
- Luminaires are also known in which light spots with high luminance, which are generated, for example, by LED illuminants, sprinkle or homogenize by channeling the cover glass, but nevertheless do not prevent the formation of multiple shadows. Even a light control by lenses arranged in front of the bulbs can not solve this problem.
- a lamp according to the invention has a housing in which a plurality of lighting means are arranged.
- the housing is closed in the emission with a cover plate and also has to change the emission characteristics of the lamps on a arranged in the emission direction in front of the bulbs foil.
- Luminaire characterized in that the film between the cover plate and a carrier disc is arranged, wherein the film is in un ⁇ indirect contact with both discs.
- the film for changing the Abstrahlcharakte ⁇ rising the light emitting means between the cover plate and the Trä ⁇ gerusion is arranged with two disks in the immediate ⁇ Barem contact is a floating storage of the film between these discs is achieved, so that the film at ther ⁇ mixed induced expansion in all directions but especially in the longitudinal and transverse directions of the film Aus stressessbewe ⁇ can perform conditions and thus a bubble or wave throw is avoided.
- a further advantage of the floating mounting of the film that it can be tack-free mon ⁇ advantage between the panes. The film can thus expand or contract independently of the disks and is thus stored stress-free even if the thermal expansion coefficients of the materials used differ considerably.
- At least one of the discs is resiliently mounted.
- a resilient mounting at least one of the discs is achieved that even a change in thickness of the film can be compensated.
- a particularly simple embodiment can be achieved if the carrier disk is resiliently mounted.
- a resilient mounting of the carrier disk has the advantage that the cover disk, which is usually arranged in the emission direction behind the carrier disk and the housing to the outside closes can be firmly connected to the housing and in particular the cost of producing the tightness ge ⁇ compared to the environment less. Should it be desired, but also the cover plate may be stored fe ⁇ horror, for example, the housing may be clamped.
- the carrier ticket is arranged on the side facing the lighting means.
- the support disk can be gela ⁇ siege, for example, with a support.
- a support has the advantage that in this way an expansion of the support plate in the longitudinal and transverse directions is not hindered by your storage, so that the support plate can be angeord ⁇ net substantially stress-free in the housing.
- a simple embodiment of such a support can be achieved by a cured adhesive bead.
- a sol che cured adhesive bead can be arranged for example on opposite ⁇ lying longitudinal sides of the carrier disc or corresponding thereto on the housing. When this adhesive bead is deposited before inserting the support disc into the case and cured from ⁇ , this has after curing a certain flexibility and can store the carrier disc spring and simultaneously permit expansion of the support sheet in the longitudinal and transverse direction.
- cured adhesive beads other flexibly formed supports can also be used.
- a circumferentially arranged O-ring would be conceivable.
- a particularly effective prevention of bubble or wave throw is achieved when the cover disc is mounted with pressure in the direction of the carrier disc in the housing. By a certain contact force, which is exerted by the cover plate in the direction of the carrier disc and taken from the resilient support ⁇ , the film between the discs can be kept flat pressed.
- a particularly simple installation of the cover plate can be achieved by a peripheral adhesive bonding with the housing.
- the housing au ⁇ ßerdem can be sealed against the environment.
- the film is held centered by an aperture.
- the diaphragm can be formed umlau ⁇ fend preferred for this purpose, it should be noted that a Aus ⁇ expansion of the film in the longitudinal and transverse direction is still possible.
- the screen may be printed only on the cover plate, so that the film over the entire
- Extension of the disc can expand.
- Figure 1 shows a cross section through a lamp according to the invention
- Figure 2 is a perspective view of the lamp of FIG.
- FIG. 1 shows a cross section through a lamp 1 according to the invention which is constructed according to the principle of a light box.
- the lamp 1 has a housing 10 with a bottom plate and a circumferential side wall, in which a plurality of lighting means 3 are arranged.
- the lighting means 3 are formed in the present example as light-emitting diodes (LED) and evenly distributed on the bottom plate of the housing 10.
- the housing 10 can advantageously be made of aluminum ⁇ minium with a plurality of cooling fins 20 which are arranged on the outside of the bottom plate, designed.
- a support disk 7, a radiation characteristic of the lighting means 3 changing film 6 and a cover plate 5 are arranged.
- the carrier disk 7 is mounted on an elastic bearing which is arranged on a first circumferential step 11.
- the elastic bearing 14 is formed in the present embodiment as a prior to the mounting of the carrier plate 7 applied and cured adhesive bead.
- the adhesive bead is in the present embodiment, only at the two
- the carrier disk 7 can expand in the longitudinal as well as in the transverse direction during thermal effects and is thus mounted floating in the housing.
- Aus ⁇ crucial for this floating storage is also that the carrier plate 7 to the side wall of the housing 10, the continues in a second stage 12, has a sufficient circumferential distance.
- the radiation characteristic of the light emitting means 3 changing film 6 is aligned centered.
- the panel is printed in the present embodiment on the cover plate 5, so that there is sufficient clearance for the film 6 and the diaphragm to allow thermal expansion in the longitudinal and transverse directions.
- the edge region of the film 6 is thus covered by the outside of the light forth and thus not visible.
- the film 6 can be formed as a light-directing and Ab ⁇ beam characteristic homogenizing foil 6 in particular.
- the cover plate 5 is mounted in the housing 10 by means of a umlau ⁇ fend arranged on the second stage 12 gluing 16 and is pressed during assembly in the housing 10 against the applied by the elastic bearing 14 spring action in the hous ⁇ se 10.
- the film 6 is thus held pressed between the carrier disk 7 and the cover disk 5, so that a thermally induced bubble or wave of the film 6 can be effectively prevented.
- FIG 2 shows a perspective view of the luminaire 1 Inventive ⁇ the invention, as it is in Figure 1 in cross section Darge ⁇ represents.
- the trough-shaped housing 10 of the lamp 1 can be seen particularly clearly, which is completed in the emission direction by the cover plate 5.
- the elongated housing 10 is at one end with a side part 30 with a connecting piece. Cker and the other end with a side part 40, which is formed in the vorlie ⁇ ing embodiment without connector plug completed.
- the two side parts 30, 40 are screwed to the housing 10 in the longitudinal direction of the lamp 1.
- FIG. 2 it is clear in FIG. 2 that the aperture printed on the cover disk 5 can be seen, which conceals both the peripheral bond 16 applied in the edge region of the cover disk 5 and the edge region of the film 6, so that they are not visible from the outside.
- the cooling fins 20 on the underside of the housing 10 shown in FIG. 1 are not shown in FIG. These are formed behind ⁇ ter a circumferential edge of the housing 10 so that a closed side wall of the housing 10 is visible to the outside.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011082424A DE102011082424A1 (de) | 2011-09-09 | 2011-09-09 | Leuchte |
PCT/DE2012/100270 WO2013034152A1 (de) | 2011-09-09 | 2012-09-06 | Leuchte mit folie zur veränderung der abstrahlcharakteristik |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2753866A1 true EP2753866A1 (de) | 2014-07-16 |
EP2753866B1 EP2753866B1 (de) | 2018-08-22 |
Family
ID=47010118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12769890.0A Not-in-force EP2753866B1 (de) | 2011-09-09 | 2012-09-06 | Leuchte mit folie zur veränderung der abstrahlcharakteristik |
Country Status (6)
Country | Link |
---|---|
US (1) | US9746169B2 (de) |
EP (1) | EP2753866B1 (de) |
JP (1) | JP6063465B2 (de) |
CN (1) | CN103782089B (de) |
DE (1) | DE102011082424A1 (de) |
WO (1) | WO2013034152A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108657537B (zh) * | 2018-04-27 | 2023-05-05 | 成都京东方车载显示技术有限公司 | 一种oled显示屏检测除泡装置 |
WO2022094043A1 (en) * | 2020-10-29 | 2022-05-05 | Bitro Group, Inc. | Led lighting device |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3771245A (en) * | 1971-09-24 | 1973-11-13 | Globe Glass Manuf Co | Display system for large color transparencies |
DE3872084T2 (de) * | 1987-06-29 | 1992-12-03 | Japan Engine Valve Mfg | Zeichnungsapparat. |
US4969075A (en) * | 1989-05-05 | 1990-11-06 | Steelcase Inc. | Low-glare light |
JPH10105074A (ja) * | 1996-09-30 | 1998-04-24 | Sony Corp | 面光源装置 |
EP1092919A3 (de) * | 1999-10-12 | 2004-02-18 | Hans & Jos. Kronenberg GmbH | Leuchteinrichtung |
EP1586813A1 (de) * | 2004-04-16 | 2005-10-19 | 3M Innovative Properties Company | Leuchtkasten |
JP4548111B2 (ja) * | 2004-12-14 | 2010-09-22 | 船井電機株式会社 | 液晶モジュール |
DE102005000951A1 (de) * | 2005-01-07 | 2006-07-20 | Dorma Gmbh + Co. Kg | Vorrichtung zum Öffnen und/oder Schließen einer Tür |
JP2007294379A (ja) * | 2005-09-30 | 2007-11-08 | Toshiba Lighting & Technology Corp | 照明装置 |
CN201057422Y (zh) * | 2007-04-24 | 2008-05-07 | 陈玉胜 | 匀光视力表灯箱 |
DE102008013049A1 (de) * | 2008-03-06 | 2009-09-24 | Mbb International Group Ag | Leuchte, insbesondere zur Erzielung eines tageslichtähnlichen Lichtspektrums |
DE202008004842U1 (de) * | 2008-04-08 | 2008-06-12 | Fkb Gmbh | Metallgehäuse mit Glasscheibe |
DE102008027220A1 (de) * | 2008-06-02 | 2009-12-03 | E.G.O. Elektro-Gerätebau GmbH | Anzeigevorrichtung für ein Kochfeld, Kochfeld und Verfahren zum Betrieb einer solchen Anzeigevorrichtung |
DE202009013088U1 (de) * | 2009-09-29 | 2011-02-24 | Zumtobel Lighting Gmbh | Beleuchtungsanordnung mit Lichtbeeinflussungselement |
DE202010001814U1 (de) * | 2010-02-03 | 2010-06-02 | Kusanke Einrichtungen Gmbh & Co. Kg | Lichtfeld |
-
2011
- 2011-09-09 DE DE102011082424A patent/DE102011082424A1/de not_active Withdrawn
-
2012
- 2012-09-06 WO PCT/DE2012/100270 patent/WO2013034152A1/de active Application Filing
- 2012-09-06 JP JP2014528857A patent/JP6063465B2/ja not_active Expired - Fee Related
- 2012-09-06 US US14/241,017 patent/US9746169B2/en not_active Expired - Fee Related
- 2012-09-06 CN CN201280043458.4A patent/CN103782089B/zh not_active Expired - Fee Related
- 2012-09-06 EP EP12769890.0A patent/EP2753866B1/de not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
DE102011082424A1 (de) | 2013-03-14 |
US20160245496A1 (en) | 2016-08-25 |
EP2753866B1 (de) | 2018-08-22 |
US9746169B2 (en) | 2017-08-29 |
CN103782089B (zh) | 2017-02-15 |
JP6063465B2 (ja) | 2017-01-18 |
WO2013034152A1 (de) | 2013-03-14 |
JP2014526770A (ja) | 2014-10-06 |
CN103782089A (zh) | 2014-05-07 |
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