EP2314910B1 - Système d'éclairage pour réalisations d'éclairages - Google Patents

Système d'éclairage pour réalisations d'éclairages Download PDF

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Publication number
EP2314910B1
EP2314910B1 EP10188348.6A EP10188348A EP2314910B1 EP 2314910 B1 EP2314910 B1 EP 2314910B1 EP 10188348 A EP10188348 A EP 10188348A EP 2314910 B1 EP2314910 B1 EP 2314910B1
Authority
EP
European Patent Office
Prior art keywords
light
lighting system
optical means
light sources
hollow
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.)
Active
Application number
EP10188348.6A
Other languages
German (de)
English (en)
Other versions
EP2314910A2 (fr
EP2314910A3 (fr
Inventor
Georg Hobelsberger
Nik Schweiger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2314910A2 publication Critical patent/EP2314910A2/fr
Publication of EP2314910A3 publication Critical patent/EP2314910A3/fr
Application granted granted 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
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
    • F21S10/023—Lighting devices or systems producing a varying lighting effect changing colors by selectively switching fixed light sources
    • 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
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/043—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures mounted by means of a rigid support, e.g. bracket or arm
    • 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
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • 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
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear 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
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention a lighting system, should make a contribution to create an atmospheric ambience by means of artistically staged light.
  • dynamic light installations are projected onto a wall, a ceiling or other surfaces. By animating the wall, ceiling or other surface, the interest of present persons should be awakened. Depending on the application, a feel-good and relaxing atmosphere can be created at the same time.
  • the invention relates to a lighting system for light stagings according to the preamble of claim 1.
  • the present invention is a further development of a lighting system currently marketed by the Applicant under the name "Empedos - Biorhythm Wallwasher” (see Zumtobel brochure "Special Products 07/08”), which is a wall washer designed as a floor lamp and light installations ("Lichtmalerein”) projected onto walls or other surfaces. These light installations are to be understood as projection images with irregular brightness and / or color progression, which do not reveal regular structures or a symmetry and should convey a harmonious, atmospheric impression Zumtobel's brochure "Special Products 07/08" can be found on page 9.
  • the housing of the floor lamp is designed as a closed elongated cuboid, which is placed on a front side on the floor and has a light exit opening on one side in the upper area.
  • the luminaire housing is reflective on the inside in the optical range.
  • a lamp with comparatively high light output for example a high-pressure gas discharge lamp, is arranged in the lower area.
  • Their white light strikes two dichroic filters arranged next to each other above the lamp. These dichroic filters are rotatably mounted about a horizontal axis (this is normal to the main direction of the luminous flux which extends in a vertical direction).
  • Diochroic filters are narrow-band, high-quality color filters whose operation is based on interference and which are constructed of a material that has dichroic optical properties.
  • Dichroic materials are characterized by having at least two different optical axes. This causes optical properties (eg the absorption behavior) to be dependent on the angle at which the luminous flux falls on the material. This directionality is exploited in "Empedos" by slowly twisting the dichroic filters around an axis. The twisting of the dichroic filters is electronic, specifically in the market available Variant by an electric stepper motor. Over time, the white light hits the filters at different angles, which absorb different wavelengths. From the originally white light, a colored light is generated, the spectrum of which changes over time, depending on the rotational speed of the filters.
  • the light thus prepared in the different shades reaches light on a translucent hollow spherical structure made of glass, which is also rotatably mounted about an axis and is slowly rotated by a second stepping motor.
  • This hollow sphere is the heart of the lighting system.
  • the hollow sphere is irregular in shape and has no rotational symmetry with respect to the axis of rotation. In some places, small bulges or invaginations can be found.
  • the hollow sphere has an irregular wall thickness, ie, the glass wall has thickenings at some points (the shape is locally similar to a convex lens), at other locations dilutions (corresponds locally to a concave lens) which act as optical beam focusing or light beam expanding.
  • the individual light beams of a light beam are influenced in different ways: locally, light is locally more strongly refracted, locally hardly deflected in some places, then focused or widened in other places or due to the wavelength dependence of the refraction of light Colors fanned out.
  • the overall effect of the hollow glass sphere is that behind the glass sphere the light rays concentrate in individual areas, which are lightened locally above average; it comes so to a play of colors and light irregular brightness and color gradient. Physically, this effect is called Kaustik. Since the shape of the hollow sphere is irregular and the hollow sphere rotates slowly, the brightness and color pattern changes over time.
  • a parabolic mirror which is positioned at the top of the floor lamp, projects the light rays through the light exit opening to the outside.
  • the mirror is arranged at a slightly greater distance from the glass hollow sphere.
  • a part of the light rays on the way between glass hollow sphere and mirror is additionally reflected on the inside of the lamp housing. It forms a kind of light mixing chamber, which improves the harmonious brightness course of light staging.
  • the overall brightness of the projected light image is controlled by an iris diaphragm located between the lamp and the dichroic color filters.
  • the lighting staging system known in the art includes a first light source, at least one translucent optical means rotatably mounted about an axis, and a device which rotates the optical means.
  • the current technical solution has some shortcomings and disadvantages:
  • the construction is relatively bulky, technically relatively complex and complex. It is, for example, a larger number of mechanically moving parts used, including two electric motors, which are relatively heavy and have relatively large space requirements.
  • the "Empedos" luminaire could only be realized as a floor lamp.
  • the light stagings are colorful / colored, i. There are always several different colors.
  • the illumination system according to the invention should also be able to produce purely white light projections in which, for example, only the color temperature of the white light changes.
  • the object of the invention is to provide a lighting system in which the above disadvantages are avoided or at least improved. Particular attention should be paid to a cost-effective, energy-efficient solution that can be integrated into a compact housing.
  • the illumination system comprises a first light source, at least one translucent optical means which is rotatably mounted about an axis, and a device which sets the optical means in rotation, wherein the illumination system at least a second light source, which emits a different light spectrum from the first light source, wherein the at least two light sources are each driven separately from each other, wherein the optical means is formed as a hollow cylindrical structure and wherein refractive structures in the form of A on the outer surface of the hollow cylindrical structure - And / or protuberances are arranged.
  • the effect of the optical means based on refraction of light, the light staging based on kaustica effects is based on kaustica effects.
  • the optical means has no symmetry with respect to the axis.
  • the wall thickness of the hollow cylindrical structure has irregularities.
  • a random or pseudorandom component is integrated in the control of the individual light sources and / or in the control of the rotational movement of the optical means.
  • the light sources are semiconductor light sources.
  • at least one of the light sources emits colored light, in particular red, green or blue light.
  • at least one of the light sources can emit white light with a correlated color temperature (CIE) of 2000-7000 Kelvin, in particular 2000-3500 K (warm white), 3500-5000 K or 5000-7000 K (cool white).
  • CIE correlated color temperature
  • At least two different light scenarios can be stored in a control unit and the lighting system at least one interface have, over which a light scenario can be selected.
  • the lighting system can be mounted on a ceiling.
  • Fig. 1 shows a schematic cross section of a preferred embodiment of the invention.
  • the lighting system 100 has a compact housing 1, which has a light exit opening on one side. In the present embodiment, the light exit opening is covered by a glass plate 2. Furthermore, the illumination system has a holder 3. This embodiment is due to its compact design suitable for being able to be mounted by means of the bracket 3 to a ceiling or wall. With appropriate adaptations, the lighting system Of course, also be designed as a floor lamp or in other variants.
  • the illumination system 100 has at least two light sources 4 which emit a different light spectrum.
  • these light sources are semiconductor light sources (light-emitting diodes (LEDs) or laser diodes). Since the different colors or color temperatures should harmoniously or continuously merge into one another in the light installations generated by the illumination system, the light sources 4 are preferably designed or provided with a corresponding primary optics such that they radiate their light relatively ready or release it into a large diaper area ,
  • the light sources 4 are selective, ie in individual channels independently, electrically controlled and dimmable.
  • a power supply unit (power supply) 5 serves to provide the electrical energy necessary for operating the lighting system.
  • a control unit 6 controls the electrical consumers of the lighting system, ie the light sources 4 and an electric motor 7.
  • LEDs which are colored light, especially in the spectral primary colors red, green or blue, emitting, so that by additive color mixing light can be generated in any color.
  • the LEDs 4 can be white light, for example with a correlated color temperature (CIE) of 2000-7000 Kelvin, in particular 2000-3500 K. (warm white), from 3500-5000 K or from 5000 - 7000 K (cool white), blast. Preference is given to several LEDs are used, each emitting white light with a different correlated color temperature (CIE).
  • CIE correlated color temperature
  • the light-directing optical means 8 In the beam path between the light sources 4 and the light exit opening is at least one light-transmitting, light-directing optical means 8 which is rotatably mounted about an axis 9.
  • the optical means 8 has irregularities 8a, the light-directing properties of the optical means can not be rotationally symmetrical with respect to the axis of rotation 9. The optical properties may therefore change when the optical means is rotated about the axis 9.
  • the light-directing effect is based on refraction of light, but embodiments are also conceivable whose effect is based on light diffraction or scattering.
  • the approximately hollow-cylindrical structure made of glass, which is rotatably mounted about the cylinder center axis 9 and electronically, for example.
  • an electric motor in the figures denoted by 7, can be set in rotation.
  • the approximately cylindrical shape is advantageous if, as in the specific embodiment, the LEDs are arranged on an elongate board or in the longitudinal direction one behind the other. The LEDs 4 are then close to the outer circumference of the cylinder and are arranged parallel to its longitudinal or rotational axis.
  • the LEDs 4 may be arranged in any configuration and the shape of the glass structure may be thereon be tuned, it is therefore not limited to a hollow cylindrical shape.
  • a spherical hollow sphere as described above may be used in lighting technology be the most advantageous solution.
  • the translucent, light directing optical means - in the presented embodiment of the in the Fig. 3 to 5 Glass cylinder shown in detail - is an important part of the lighting system.
  • the optical means - the glass cylinder - may have irregularities which break the rotational symmetry with respect to the axis of rotation. Similar to the hollow sphere locally small bulges or small invaginations can be performed in some places.
  • the ratio of the width ⁇ of these structures 8a in comparison to the diameter D of the hollow cylinder 8 is preferably in the range between 0.05 and 0.25 (see Fig. 4 ).
  • the hollow cylinder 8 has a diameter D of about 4 cm, the width ⁇ of the structures 8a is approximately in the range of 0.25 cm to 1.0 cm.
  • the length of the cylinder 8 is about 12 cm, the wall thickness d is about 0.5 cm.
  • the dimensions can also be adapted to the particular application.
  • the length of the cylinder could also be significantly increased, if the desired light staging should extend over a larger area.
  • a very compact and nevertheless powerful illumination system is obtained.
  • the wall thickness of the hollow cylinder may also be irregular, it may have local thickening in some places, in turn, local dilutions in other places.
  • the concrete exact design of the glass cylinder requires the artistic expression of the lighting and is in the hands of the lighting designer, for the understanding of the technical functioning of the lighting system is the exact form of not relevant.
  • the overall effect of the light directing optical means is that the light rays, when they exit the luminaire housing through the light exit surface, are concentrated in individual areas and thereby lighten them.
  • the result is a light staging with irregular brightness and / or color gradient. Physically, this effect is called Kaustik.
  • the use of LEDs has several advantages.
  • the brightness of the LEDs can be controlled electronically very easily, and also in an energy-efficient manner.
  • With the iris diaphragm a brightness control is only possible by shading and therefore energy inefficient accordingly.
  • the expensive and high-quality dichroic filters are no longer necessary.
  • the LEDs are almost punctiform light sources and hardly emit in the infrared range. Therefore, they can be positioned closer to the glass cylinder, whereby the light-directing effect of the glass cylinder is enhanced. Due to this, the distance mentioned above between the optical means and the light exit surface can also be kept very short.
  • the lighting system further includes a system for driving the light sources and for controlling the light sources Rotational movement of the optical means.
  • the control takes place via the control unit 6, which is preferably designed as an integrated control circuit, which may, for example, contain a microcontroller or an ASIC.
  • the control unit controls the light output of the at least two different light sources, for example via the supplied electrical current, the supplied electrical voltage or the supplied electrical power. It can also control the rotational movement of the optical means via the electric motor 7.
  • the individual are.
  • Light sources in different channels individually controllable and dimmable.
  • control unit is designed as a programmable digital circuit, then different light scenarios (scenarios for light staging) can be programmed, which specify the time course of the brightness of each individual light source or the rotational speed of the optical means. It can be stored in an internal memory several different light scenarios, which are offered to the user for selection and can be selected by him via an interface. It is also possible for the control unit to have an interface via which the control unit can receive commands by means of control protocols (for example by means of the DMX, DSI or DALI protocols established in lighting technology). The different light scenarios can also be selected by means of a control protocol.
  • control protocols for example by means of the DMX, DSI or DALI protocols established in lighting technology.
  • a possible light scenario could include only one or more light sources emitting white light being driven, whereas in one alternative light scenario used alternatively or additionally light sources with colored light.
  • white light for example, one or more white LEDs with a correlated color temperature of 2000-3500 K (warm white), 3500-5000 K and / or LEDs with a color temperature of 5000-7000 K (cool white) can be controlled.
  • colored light for example LEDs in the primary colors red, green and / or blue and optionally one or more white LEDs can be activated.
  • a desired driving scenario is that the projection images do not repeat over time. If the light spectrum emitted by the light sources is constant over time and monotonous, then the light projections have a temporal periodicity, the period duration corresponding to a complete circulation of the glass cylinder. In a preferred embodiment, the brightness images should change dynamically and never repeat, if possible.
  • a random or pseudo-random component is integrated in the control of the individual light sources and / or in the control of the movement of the optical means. If, for example, the control unit is realized by means of a programmable microcontroller, this can be implemented, for example, with the aid of a programmed (pseudo) random generator in the microcontroller.
  • Fig. 6a and Fig. 6b the temporal brightness course of an implementation example is shown. It shows Fig. 6a the brightness of a single LED. During the period ton_1 (resp. ton_2, ton_3) the LED lights up, during the period toff_1 (or toff_2, toff_3) it is switched off. From the off state, the brightness increases up to a maximum brightness Imax_1 (or Imax_2, Imax_3) before it decreases again. As indicated in the drawing, the values for tone, toff and Imax are different, they are chosen randomly.
  • Fig. 6b the temporal brightness curve of three different LEDs (LED1, LED2 and LED3) is shown.
  • the values for tone and / or toff times and / or the maximum brightnesses Imax are determined by means of a random generator. It should be ensured that at any time at least one LED emits light and the total brightness of the lighting system does not fall below a certain value.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Claims (13)

  1. Système d'éclairage (100) pour des mises en scène lumineuses, présentant une première source de lumière (4), au moins un moyen optique (8) transparent qui est supporté en rotation autour d'un axe (9), et un dispositif (7) qui met en rotation le moyen optique (8), le système d'éclairage présentant au moins une deuxième source de lumière qui émet un spectre lumineux différent de la première source de lumière, les au moins deux sources de lumière (4) pouvant être pilotées respectivement séparément l'une de l'autre,
    caractérisé en ce que
    le moyen optique (8) est constitué en tant que produit en forme de cylindre creux, et en ce que des structures (8a) en forme d'invaginations et/ou de protubérances réfractant la lumière sont disposées sur la surface extérieure du produit en forme de cylindre creux.
  2. Système d'éclairage (100) selon la revendication 1,
    caractérisé en ce que l'action du moyen optique (8) est basée sur la réfraction de la lumière, et la mise en scène lumineuse repose sur des effets caustiques.
  3. Système d'éclairage (100) selon la revendication 1 ou 2,
    caractérisé en ce que le moyen optique (8) ne présente aucune symétrie relativement à l'axe (9).
  4. Système d'éclairage (100) selon la revendication 1,
    caractérisé en ce que le rapport de la largeur (δ) des structures (8a) réfractant la lumière au diamètre (D) du produit en forme de cylindre creux se situe dans la plage de 0,05 à 0,25.
  5. Système d'éclairage (100) selon l'une des revendications 1 à 4,
    caractérisé en ce que l'épaisseur de paroi (d) du produit en forme de cylindre creux est à peu près égale à 0,5 cm.
  6. Système d'éclairage (100) selon la revendication 1,
    caractérisé en ce que l'épaisseur de paroi du produit en forme de cylindre creux présente des irrégularités.
  7. Système d'éclairage (100) selon l'une des revendications précédentes,
    caractérisé en ce que, lors du pilotage des différentes sources de lumière (4) et/ou lors de la commande du mouvement de rotation du moyen optique (8), une composante aléatoire et/ou pseudo-aléatoire est intégrée.
  8. Système d'éclairage (100) selon l'une des revendications précédentes,
    caractérisé en ce que les sources de lumière (4) sont des sources de lumière à semi-conducteur, en particulier des LED.
  9. Système d'éclairage (100) selon l'une des revendications précédentes,
    caractérisé en ce qu'au moins une des sources de lumière (4) émet de la lumière colorée, en particulier de la lumière rouge, verte ou bleue.
  10. Système d'éclairage (100) selon l'une des revendications précédentes,
    caractérisé en ce qu'au moins une des sources de lumière (4) émet de la lumière blanche avec une température de couleur (CIE) corrélée de 2 000-7 000 kelvins, en particulier de 2000 - 3 500 K (blanc chaud), de 3 500 - 5 000 k ou de 5 000 - 7 000 K (blanc froid).
  11. Système d'éclairage (100) selon l'une des revendications précédentes,
    caractérisé en ce que l'axe (9) est un axe longitudinal, et en ce que les sources de lumière (4) sont disposées les unes derrière les autres parallèlement à l'axe longitudinal (9) du moyen optique (8).
  12. Système d'éclairage (100) selon l'une des revendications précédentes,
    caractérisé en ce qu'au moins deux scénarios lumineux différents sont enregistrés dans une unité de commande (6), et en ce que le système d'éclairage (100) présente au moins une interface par le biais de laquelle il est possible de sélectionner un scénario de lumière.
  13. Système d'éclairage (100) selon l'une des revendications précédentes, caractérisé en ce que le système d'éclairage (100) peut être monté sur un plafond.
EP10188348.6A 2009-10-21 2010-10-21 Système d'éclairage pour réalisations d'éclairages Active EP2314910B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0066209U AT11764U1 (de) 2009-10-21 2009-10-21 Beleuchtungssystem für lichtinszenierungen

Publications (3)

Publication Number Publication Date
EP2314910A2 EP2314910A2 (fr) 2011-04-27
EP2314910A3 EP2314910A3 (fr) 2014-01-01
EP2314910B1 true EP2314910B1 (fr) 2017-06-07

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EP10188348.6A Active EP2314910B1 (fr) 2009-10-21 2010-10-21 Système d'éclairage pour réalisations d'éclairages

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EP (1) EP2314910B1 (fr)
AT (1) AT11764U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114258266B (zh) * 2019-08-27 2023-11-07 昕诺飞控股有限公司 一种用于照亮水族箱的照明设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003923A1 (de) * 1990-02-09 1991-08-14 Andreas Laurenz Licht-streukoerper
DE20006292U1 (de) * 2000-04-06 2001-08-16 Globalmind Consumer Electronic Optische Anordnung
DE202005001572U1 (de) * 2005-02-01 2005-03-31 Lin Ming Kuei Beleuchtende Ziereinrichtung
US20070097681A1 (en) * 2005-11-01 2007-05-03 Chich Robert H Lighting device
DE102005058199A1 (de) * 2005-12-06 2007-06-14 Bruno Kiesel Vorrichtung zum Erzeugen von Lichteffekten

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Publication number Publication date
EP2314910A2 (fr) 2011-04-27
EP2314910A3 (fr) 2014-01-01
AT11764U1 (de) 2011-04-15

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