WO1987000907A1 - Eclairage utilisant des materiaux photoconducteurs - Google Patents

Eclairage utilisant des materiaux photoconducteurs Download PDF

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Publication number
WO1987000907A1
WO1987000907A1 PCT/EP1986/000464 EP8600464W WO8700907A1 WO 1987000907 A1 WO1987000907 A1 WO 1987000907A1 EP 8600464 W EP8600464 W EP 8600464W WO 8700907 A1 WO8700907 A1 WO 8700907A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
luminaire according
luminaire
decoupling
lamp
Prior art date
Application number
PCT/EP1986/000464
Other languages
German (de)
English (en)
Inventor
Raimund L. Kaufmann
Eckard LÖTZSCH
Original Assignee
Lp-Plast Gesellschaft Zur Verarbeitung Von Kunstst
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 Lp-Plast Gesellschaft Zur Verarbeitung Von Kunstst filed Critical Lp-Plast Gesellschaft Zur Verarbeitung Von Kunstst
Publication of WO1987000907A1 publication Critical patent/WO1987000907A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0008—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted at the end of the fibre
    • 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
    • F21V17/14—Bayonet-type fastening
    • 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
    • F21W2121/00—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00

Definitions

  • the present invention relates to a luminaire consisting of a luminaire body made of light-conducting material, in particular acrylic glass, a light source arranged in front of one end of the luminaire body, a light-conducting decoupling body attached to the luminaire body and a housing accommodating the light source.
  • the object of the present invention is to improve a luminaire of the type mentioned at the outset in such a way that the direction of the light exit from the luminaire body, its intensity distribution and divergence can be varied.
  • this object is achieved in that the coupling-out body consisting of the material of the lamp body lies flat on the end face opposite the coupling-in end face of the lamp body and is rotatably mounted on the coupling face about an axis running perpendicular to the end face, and the gap between the lamp body and the Coupling body is filled with an isorefractive liquid with the same refractive index as that of the material of the lamp body.
  • This configuration according to the invention makes it possible to generate any desired radiation characteristic by exchanging the decoupling body, since the exit surfaces of the individual decoupling bodies can be designed in any way. Due to the free rotatability of the decoupling body by any angle of rotation, the direction of light can also be adjusted without the lamp itself having to be moved.
  • Liquid has properties that ensure the best possible adhesion of the decoupling body on the end face of the lamp body, so that mechanical holding means by this inventive measure are not required for the decoupling body on the lamp body. Furthermore, the visual impression of a continuous optically homogeneous piece of material is retained.
  • FIG. 1 is a schematic view in section of a lamp according to the invention
  • FIG. 8 shows a further embodiment of a lamp according to the invention.
  • a luminaire according to the invention consists of a luminaire body 1, which consists of a light-conducting material, and preferably of acrylic glass.
  • the lamp body 1 is held in a housing 2, and a light source 3 is arranged in the housing 2.
  • the light source preferably consists of a cold light halogen lamp.
  • the light source 3 is preferably arranged in the middle in front of the coupling end surface 4 of the lamp body.
  • the light source is a low-voltage lamp, which is preferably supplied with voltage via a toroidal transformer 5.
  • a fan 6 can preferably be arranged inside the housing.
  • the lamp body 1 is fastened within the housing with an interchangeable lock, preferably with a bayonet lock 7, so that the lamp body can be easily replaced.
  • a decoupling body 9 is arranged on the lamp body 1, ie on its end surface opposite the coupling end surface 4 in the radiation direction, the coupling out surface 8.
  • the decoupling body 9 is on the.
  • Decoupling surface 8 of the lamp body 1 is arranged such that it is freely rotatable about an axis running perpendicular to the decoupling surface 8.
  • a bearing journal 10, which in the exemplary embodiment shown is integrally connected to the decoupling body 9, serves to mount the decoupling body 9.
  • the bearing journal 10 it is also within the scope of the invention to design the bearing journal 10 as a separate part, which is then received in a corresponding recess in the decoupling body 9.
  • the bearing pin 10 protrudes into a bore 11 in the coupling-out end face 8 of the lamp body 1, the bore 11 and the bearing pin 10 being matched to one another in terms of shape, so that the bearing pin 10 is seated in the bore 11 with little play.
  • the cross section of the journal 10 is circular, which results in the free rotation.
  • the bearing pin 10 is cylindrical, so that the bore is also formed as a hollow cylinder.
  • the gap 12 existing between the decoupling body 9 and the lamp body 1 is completely filled with an isorefractive liquid 13 according to the invention.
  • This Isorefractive liquid 13 has the same refractive index as the material of the lamp body 1 and the coupling-out body 9, which are themselves made of the same material. There is a high level of adhesion between the isorefractive liquid 13 and the coupling surfaces, so that the decoupling body 9 is held captively on the decoupling end surface 8 of the lamp body 1. For this purpose, it is advantageous if, in order to increase the surface tension of the coupling surfaces, these are coated or duplicated with silicate glass. However, it can be released from the luminaire body by an increased conscious force. Because the liquid used according to the invention has a high viscosity, there is an increased resistance when the coupling surfaces are rotated relative to one another, as a result of which an improved positional stability is achieved.
  • the liquid used according to the invention is determined in that it has a low surface tension, so that a uniform distribution of the liquid on the end faces to be coupled is ensured. Furthermore, it must have a low vapor pressure, ie the liquid must not evaporate or evaporate at the usual operating temperatures, ie ambient temperatures. Furthermore, the liquid according to the invention should not be toxic, so that there is no danger to the user. Also, the liquid according to the invention must not be aggressive against the material of the lamp body and the decoupling body and also not in relation to the human body and the other usual materials. A further condition for the liquid according to the invention is that it is light-stable and resistant to aging, ie that it does not change under the influence of light and due to aging.
  • a liquid composed of a mixture of 32% by weight glycerol, 67% by weight calcium chloride and 1% by weight sodium tiosulfate is preferably used.
  • a liquid from a Mixture of two silicone oils with the appropriate properties can be used.
  • the coupling point between the lamp body 1 and the coupling-out body 9 is optically neutral, i. H. there is no influence on the light conduction by refraction, reflection or scatter within this range.
  • the decoupling body according to the invention is shown, the same parts as in FIG. 1 being provided with the same reference numbers. It is within the scope of the invention if the journal 10 is not formed on the decoupling body, but on the decoupling surface of the lamp body 1, so that a bore which receives the journal 10 is then contained within the decoupling body 9.
  • the luminaire body 1 and the coupling-out body 9 have a circular cross section, the end surfaces of both bodies lying one above the other being of the same size.
  • FIG. 2 shows a decoupling body 9 according to the invention, the exit surface 14 of which extends obliquely to the longitudinal axis of the body. This results in a change in the exit direction of the light radiation emerging from the coupling-out body 9 compared to the embodiment according to FIG. 1.
  • 3 shows a decoupling body 9 according to the invention, the exit surface 14 of which is convexly curved. This exit surface 14 is now provided with a specularly reflecting layer 15, the specularly reflecting surface of this layer 15 facing the inside of the decoupling body 9. Furthermore, it is provided according to the invention that at least a portion of the peripheral surface of the decoupling body 9 according to the invention has a roughening 16.
  • the light passing through the coupling-out body can also emerge circumferentially. This is a diffuse coupling-out of the light, while a directional coupling-out takes place at the exit surfaces 14 which are polished.
  • the roughening 16 can be done by machining the surface of the
  • the diffuse coupling-out of the light can be provided according to the invention either alone or in combination with the directional coupling-out. It is also within the scope of the invention to arrange a scattering layer or scattering surface in the coupling-out body, a polymerizable or liquid suspension of scattering particles of variable diameter and with a high refractive index compared to acrylic glass being used as the scattering medium.
  • FIG. 4 shows an outcoupling body 9 according to the invention, which has the shape of an inverted truncated cone. This means that the smaller end surface of the truncated cone lies opposite the coupling-out surface 8 of the lamp body 1.
  • This shape of the decoupling body 9 bundles the coupled light when the Light from the exit surface 14 reached.
  • the exit angle (divergence) of the emerging light verklei ⁇ nert (pooling effect) by appropriate design of the cone angle.
  • the bundle divergence can be varied within wide limits by the cone angle.
  • 5 shows an inverted embodiment of the decoupling body 9.
  • the exit surface 14 is smaller than the end surface of the coupling-out body 9 facing the coupling-out surface 8.
  • the radiation angle at the exit surface 14 is increased.
  • FIG. 6 shows an outcoupling body 9 according to the invention, which is designed in the form of an arc, this being in the form of a 90 arc piece, so that the light is deflected relative to the direction of coupling
  • FIG. 7 shows a further embodiment of the decoupling body 9 according to the invention.
  • Two decoupling bodies 9 are shown here, which are mounted so as to be rotatable relative to one another in the manner according to the invention, the gap 12 located between them being filled by means of the liquid 13 according to the invention.
  • Both coupling bodies are arch-shaped and each deflect by 45 °.
  • This arrangement of the decoupling bodies 9 with respect to one another can achieve any desired adjustment and light control, since the decoupling bodies can be rotated as desired relative to one another and with respect to the lamp body 1. So It is also within the scope of the invention if, for example, three arcuate decoupling bodies 9 according to the invention are connected to one another in the manner shown in FIG. The fact that these three decoupling bodies 9 can be rotated relative to one another and with respect to the lamp body 1 enables a comprehensive adjustability and deflection of the light that is radiated in via the lamp body 1.
  • the decoupling body 9 according to the invention has in its interior a partially transparent reflection layer 18 running transversely to the light longitudinal axis.
  • a further exit surface 19 is formed, to which a further decoupling body 9 according to the invention is connected as described above.
  • any desired intensity of the light emitted by the light source 3 can be split, ie several partially transparent reflecting layers 18 having coupling-out bodies 9 can be arranged one behind the other, whereby the partially transparent reflecting layers 18 can be dimensioned in this way that the same percentage of light is always coupled out.
  • This embodiment of the invention is not limited to a lamp according to the invention designed as a light rail. So at for example, floor lamps with several light arms are also formed in this way.
  • the design and processing of the coupling-in and coupling-out surfaces of the luminous element according to the invention and the coupling-out element according to the invention are concerned, they are all provided with a polished, bare surface.
  • the present invention is not limited to the exemplary embodiments shown, combinations of the different designs, as described above, are also with one another and. possible with each other.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Eclairage comportant un corps d'éclairage (1) en matériau photoconducteur, notamment en verre acrylique, une source lumineuse (3) disposée en face d'une extrémité du corps d'éclairage (1), un corps de découplage (9) photoconducteur fixé au corps d'éclairage (1) et un logement destiné à recevoir la source lumineuse (3). Le corps de découplage (9) réalisé dans le même matériau que le corps d'éclairage (1), est situé avec sa surface de couplage à plat contre la surface terminale qui se trouve face à la surface de découplage (4) du corps d'éclairage, et est monté en rotation sur cette surface de manière à pouvoir tourner autour d'un axe perpendiculaire à la surface terminale; en outre, un interstice (12) situé entre le corps d'éclairage (1) et le corps de découplage est rempli avec un liquide isoréfringent (13) possédant le même indice de réfraction que le matériau du corps d'éclairage (1).
PCT/EP1986/000464 1985-08-06 1986-08-05 Eclairage utilisant des materiaux photoconducteurs WO1987000907A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3528177.4 1985-08-06
DE19853528177 DE3528177A1 (de) 1985-08-06 1985-08-06 Leuchte unter verwendung von lichtleitmaterialien

Publications (1)

Publication Number Publication Date
WO1987000907A1 true WO1987000907A1 (fr) 1987-02-12

Family

ID=6277826

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1986/000464 WO1987000907A1 (fr) 1985-08-06 1986-08-05 Eclairage utilisant des materiaux photoconducteurs

Country Status (3)

Country Link
EP (1) EP0232415A1 (fr)
DE (1) DE3528177A1 (fr)
WO (1) WO1987000907A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000645A1 (fr) * 1987-07-09 1989-01-26 Robert Bosch Gmbh Interrupteur a haute tension
DE4033625A1 (de) * 1990-10-23 1992-04-30 Bieroth Heinz Beleuchtung eines operationstisches
EP0580942A1 (fr) * 1992-07-31 1994-02-02 Schott Glaswerke Elément de sortie de lumière pour guide d'ondes à fibre optique
FR2705435A1 (fr) * 1993-05-14 1994-11-25 Ermax Agencement de source d'éclairage à fibre optique et à faisceau lumineux orientable.
NL9301115A (nl) * 1993-06-25 1995-01-16 Eduardus Franciscus Antonius T Van starre lichtgeleiders voorzien lichtgeleiderstelsel.
US5408572A (en) * 1992-07-31 1995-04-18 Schott Glaswerke Light-emitting unit for optical fiber lightguides
AP729A (en) * 1994-06-20 1999-01-29 Van Leer South Africa Pty Limited Process, method and equipment for vaccuum packaging of materials.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326525A1 (de) * 1992-08-07 1994-02-10 Bridgestone Corp Wasserdichte Beleuchtungsvorrichtung
BR9611240A (pt) * 1995-10-23 1999-03-30 O & K Rolltreppen Gmbh Dispositivo de iluminação e transporte de passageiro
DE19546937C2 (de) * 1995-10-23 1999-08-05 O & K Rolltreppen Gmbh Beleuchtungseinrichtung für Personenförderanlagen
GB2415770A (en) * 2004-07-01 2006-01-04 Jamie Barrett A lamp sculpture
FR3068485B1 (fr) 2017-06-30 2019-11-29 Valeo Vision Guide optique faconne au laser

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2290278A (en) * 1941-01-31 1942-07-21 Failla Joseph John Illuminated indicating device
US3641332A (en) * 1969-10-30 1972-02-08 Ebert Michael Fiber optics illumination system
FR2118317A5 (fr) * 1970-12-17 1972-07-28 Sagem
US3740113A (en) * 1969-03-13 1973-06-19 Ici Ltd Light guide
FR2260746A1 (fr) * 1974-02-11 1975-09-05 Nath Guenther
GB1502423A (en) * 1975-03-10 1978-03-01 Communications Patents Ltd Optical coupling devices
EP0115843A2 (fr) * 1983-02-04 1984-08-15 Kei Mori Appareil pour la distribution de la lumière à temps partagé
FR2542063A1 (fr) * 1983-03-04 1984-09-07 Chevrillon Monique Dispositif d'eclairage anti-eblouissant
EP0148350A1 (fr) * 1983-11-10 1985-07-17 Kei Mori Système de radiation de lumière

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2290278A (en) * 1941-01-31 1942-07-21 Failla Joseph John Illuminated indicating device
US3740113A (en) * 1969-03-13 1973-06-19 Ici Ltd Light guide
US3641332A (en) * 1969-10-30 1972-02-08 Ebert Michael Fiber optics illumination system
FR2118317A5 (fr) * 1970-12-17 1972-07-28 Sagem
FR2260746A1 (fr) * 1974-02-11 1975-09-05 Nath Guenther
GB1502423A (en) * 1975-03-10 1978-03-01 Communications Patents Ltd Optical coupling devices
EP0115843A2 (fr) * 1983-02-04 1984-08-15 Kei Mori Appareil pour la distribution de la lumière à temps partagé
FR2542063A1 (fr) * 1983-03-04 1984-09-07 Chevrillon Monique Dispositif d'eclairage anti-eblouissant
EP0148350A1 (fr) * 1983-11-10 1985-07-17 Kei Mori Système de radiation de lumière

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000645A1 (fr) * 1987-07-09 1989-01-26 Robert Bosch Gmbh Interrupteur a haute tension
DE4033625A1 (de) * 1990-10-23 1992-04-30 Bieroth Heinz Beleuchtung eines operationstisches
EP0580942A1 (fr) * 1992-07-31 1994-02-02 Schott Glaswerke Elément de sortie de lumière pour guide d'ondes à fibre optique
US5408572A (en) * 1992-07-31 1995-04-18 Schott Glaswerke Light-emitting unit for optical fiber lightguides
FR2705435A1 (fr) * 1993-05-14 1994-11-25 Ermax Agencement de source d'éclairage à fibre optique et à faisceau lumineux orientable.
EP0633424A1 (fr) * 1993-05-14 1995-01-11 Ermax Agencement de source d'éclairage à fibre optique et à faisceau limineux orientable
US5519797A (en) * 1993-05-14 1996-05-21 Ermax Arrangement of a lighting source with an optical fiber and a steerable light beam
NL9301115A (nl) * 1993-06-25 1995-01-16 Eduardus Franciscus Antonius T Van starre lichtgeleiders voorzien lichtgeleiderstelsel.
AP729A (en) * 1994-06-20 1999-01-29 Van Leer South Africa Pty Limited Process, method and equipment for vaccuum packaging of materials.

Also Published As

Publication number Publication date
EP0232415A1 (fr) 1987-08-19
DE3528177A1 (de) 1987-02-19

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