EP0589016B1 - Projecteur a optique fluide - Google Patents

Projecteur a optique fluide Download PDF

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Publication number
EP0589016B1
EP0589016B1 EP93907906A EP93907906A EP0589016B1 EP 0589016 B1 EP0589016 B1 EP 0589016B1 EP 93907906 A EP93907906 A EP 93907906A EP 93907906 A EP93907906 A EP 93907906A EP 0589016 B1 EP0589016 B1 EP 0589016B1
Authority
EP
European Patent Office
Prior art keywords
fluid
optical
accordance
optical system
light
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.)
Expired - Lifetime
Application number
EP93907906A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0589016A1 (fr
Inventor
Jean-Claude Amblard
Amilcar Vide-Amblard
Roger Le Nagard
Jean Georget
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.)
Amblard Jean-Claude En Vide-Amblard Amilcar En L
Jean-Claude Amblard amilcar Vide-Amblard roger Le
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0589016A1 publication Critical patent/EP0589016A1/fr
Application granted granted Critical
Publication of EP0589016B1 publication Critical patent/EP0589016B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F21V29/56—Cooling arrangements using liquid coolants
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • F21V9/12—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light with liquid-filled chambers
    • 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
    • F21W2131/10—Outdoor lighting
    • F21W2131/105—Outdoor lighting of arenas or the like
    • 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
    • F21W2131/10—Outdoor lighting
    • F21W2131/107—Outdoor lighting of the exterior of buildings
    • 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
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Definitions

  • the luminous power of light projectors intended for lighting or projecting images is limited by the thermal emissions.
  • the single light source creates a strong rise in temperature not only within the projector, but also in the radiation emitted (by the significant presence of infrared energy).
  • traditional optics being centered, they only allow the use of a SINGLE SOURCE and thereby limit the power of the projectors.
  • the fluid optics overcomes all these drawbacks.
  • the device presented by Morton et al. intended for a single type of arc source placed behind a parabolic dioptric block is intended to create an almost punctual zone very bright. It does not allow the simultaneous use of several light sources of the type or any power, or even to increase the power of the existing source indefinitely. This system does not allow to dissipate and filter at will the thermal energy created by the infrared radiation of the source nor to modulate at will the power and the quality of the useful light produced. It does not allow, for example, the creation of multifunction headlights (multisources) or very high power light generator (more than 20 Kw).
  • fluid optics uses one of the fundamental properties of water or a similar coolant naturally filtering the infrared radiation emitted by all light sources. This fluid degrades this energy into heat, then evacuates it by creating within it a thermal gradient generating a refractive index gradient. The volume in which the fluid circulates is such that the generator which generates it is a logaritmic spiral. The choice and the number of sources is indifferent.
  • the term "fluid optics" defines an optic which is fundamentally different from a traditional optic. It is a focused, aspherical, astigmatic, afocal and possibly anisotropic lens.
  • the present invention relates to high power industrial optics. It is a question of creating a light projector whose light power can be much higher than all that currently exists.
  • the nature of the invention consists in using the optical and thermal properties of fluid elements in a stable state, or set in motion by natural convection, or maintained in forced movement in a container studied with appropriate optical interior shapes.
  • the refractive index by controlling the thermal gradient of the fluid medium thus creating a gradient of refractive index.
  • the properties of transmission or absorption of part of the light flux by the fluid as a function of the wavelength are used. It is an optic which collects all the light produced by one or more light sources, whatever the incidence of the input radiation and its position relative to its entry face, channels and concentrates it into a divergent sheet whose shape is fixed. This optic uses the properties of refraction and total reflection, on the one hand on its surfaces and diopters according to the laws of Descartes-Snell and on the other hand within the moving fluid itself. It should be noted that this optic is thermally controlled by forced movements of gaseous or liquid fluids.
  • This new system avoids the use of heat filters penalizing current projectors (efficiency of 25 to 30%) for the projection of still images. Heat filters absorb a significant amount of visible light.
  • the solution adopted consists in circulating a fluid transparent to visible light and opaque to other light rays in a container of appropriate shape and perfectly defined so that the laws of Descartes-Snell are verified and subjected to a laminar circulation creating in sound within a regulated thermal gradient favoring the concentration of light rays by successive reflections and refractions.
  • the shape of the volume of the concentration optic according to the invention must be generated by the revolution of a segment of logarithmic spiral arc, as described in claim 1.
  • Figure 1 shows a cutaway perspective of fluid optics.
  • Figure 2 shows a section of the fluid optics.
  • the device includes the following numbered elements.
  • the interior shape (1) constitutes the essential of the FLUID OPTICS. This shape is generated by the revolution of a logarithmic spiral arc.
  • the surface is covered with a chrome, nickel-plated, silver reflective deposit, or made up of a deposit of glass or any other perfectly reflecting system.
  • This form can be executed in a pressure foundry (aluminum foundry, cast iron or any other material having good mechanical and thermal resistance) on which it is possible to fix a reflective deposit.
  • the interior geometry must be perfect.
  • the containers (2) and (3) supports of the interior shape are formed of two envelopes made integral by screws and a seal (4). These envelopes can externally serve as a radiator to evacuate excess calories by forced circulation of a refrigerated fluid.
  • the outer casing (5) retaining the refrigerant.
  • the seal (6) retaining the refrigerant.
  • the seal (6) retaining the refrigerant.
  • the seal (6) retaining the refrigerant.
  • the seal (6) retaining the refrigerant.
  • the seal (6) retaining the refrigerant.
  • the seal (6) retaining the refrigerant.
  • the seal (6) retaining the refrigerant.
  • the transparent porthole (7) forming the inlet face.
  • the seal is produced by an O-ring.
  • the outlet cone (9) of the interior shape of the marked container (1) is made of transparent material such as glass of optical quality very resistant to temperature. This cone is held together (1), (2) and (3) by a retaining flange (11). The assembly is sealed by an O-ring (10). The top (12) of the cone is capped with a flow collar which allows the evacuation of the optical fluid A for its cooling.
  • the thermal fluid B for cooling (16) of the peripheral radiator penetrates on the side of the optical inlet face (hottest face).
  • the exit will be on the side of the exit cone.
  • the whole assembly must be implemented and controlled by a servomechanism.
  • the assembly must be controlled from temperature, pressure and flow test points distributed over strategic locations in the coolant circuit.
  • the creation of a VERY LARGE POWER optic projector makes it possible to significantly increase the optical efficiency and to diversify the field of application of these devices.
  • This type of projector is capable of reproducing a fixed or moving image on a screen (clouds or public buildings) located at great distance.
  • the projector is therefore well suited for light and sound shows or large-scale outdoor performances. It also allows the projection of tablecloths of great light intensity, of large beam opening (about 170 °) at great distance.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • External Artificial Organs (AREA)
EP93907906A 1992-04-13 1993-03-30 Projecteur a optique fluide Expired - Lifetime EP0589016B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9204509A FR2689961B1 (fr) 1992-04-13 1992-04-13 Projecteur à optique fluide.
FR9204509 1992-04-13
PCT/FR1993/000314 WO1993021474A1 (fr) 1992-04-13 1993-03-30 Projecteur a optique fluide

Publications (2)

Publication Number Publication Date
EP0589016A1 EP0589016A1 (fr) 1994-03-30
EP0589016B1 true EP0589016B1 (fr) 1996-09-04

Family

ID=9428798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93907906A Expired - Lifetime EP0589016B1 (fr) 1992-04-13 1993-03-30 Projecteur a optique fluide

Country Status (10)

Country Link
US (1) US5555493A (enExample)
EP (1) EP0589016B1 (enExample)
JP (1) JP3411277B2 (enExample)
AT (1) ATE142321T1 (enExample)
CA (1) CA2111020C (enExample)
DE (1) DE69304477T2 (enExample)
DK (1) DK0589016T3 (enExample)
ES (1) ES2095047T3 (enExample)
FR (1) FR2689961B1 (enExample)
WO (1) WO1993021474A1 (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2769993B1 (fr) * 1997-10-20 1999-12-31 Axo Scintex Cie Equip Automobi Reflecteur concentrant
FR2784448B1 (fr) 1998-10-13 2000-11-24 Axo Scintex Cie Equip Automobi Diffuseur, notamment de feux de signalisation de vehicules
ES2257799T3 (es) 1997-10-21 2006-08-01 Automotive Lighting Rear Lamps France Difusor de pilotos de señalizacion de vehiculos.
FR2778453B1 (fr) 1998-05-06 2000-06-16 Axo Scintex Cie Equip Automobi Reflecteur de projecteur de vehicules
FR2804493B1 (fr) 2000-01-31 2002-04-26 Renault Projecteur de feu de signalisation de vehicule automobile a guides de lumiere
FR2805332B1 (fr) 2000-02-18 2002-04-26 Renault Projecteur de phare de vehicule automobile a guides de lumiere
FR2805598B1 (fr) 2000-02-25 2002-04-26 Renault Projecteur de phare de vehicule automobile a guides de lumiere
FR2806150B1 (fr) 2000-03-10 2002-05-10 Renault Projecteur de phare de vehicule pour l'eclairage en virage et procede de commande d'un tel projecteur
FR2806049B1 (fr) 2000-03-10 2002-07-19 Renault Temoin lumineux multi-fonctions de tableau de bord de vehicule automobile
US7329029B2 (en) 2003-05-13 2008-02-12 Light Prescriptions Innovators, Llc Optical device for LED-based lamp
US20080037256A1 (en) * 2006-08-14 2008-02-14 Chi-Mao Li Heat conductor assembly of light source
GB0805459D0 (en) * 2008-03-26 2008-04-30 Stone David J Heat exchanger
FR2992739B1 (fr) * 2012-06-28 2014-08-29 Jean Claude Amblard Generateur de lumiere a optique fluide pour fibres optiques plastiques ( de tres grande puissance)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2195392A (en) * 1936-05-20 1940-03-26 Philips Nv Projection apparatus
US2520691A (en) * 1945-05-30 1950-08-29 Carl W Otis Ornamental bubbling light
US3319097A (en) * 1965-03-25 1967-05-09 Giannini Scient Corp High intensity-gas lamp with recirculation means
US3371202A (en) * 1966-07-21 1968-02-27 Wech Allyn Inc Medical headlight
US3628601A (en) * 1970-03-23 1971-12-21 Advanced Patent Technology Inc Apparatus for cooling reflector walls
US3825741A (en) * 1973-03-05 1974-07-23 Tinsley Labor Inc Light source with high efficiency light collection means
US3941451A (en) * 1974-03-11 1976-03-02 Optical Research And Development Corporation Inline optical wedge stabilizer
US3914010A (en) * 1974-11-25 1975-10-21 Us Army Liquid long-wave pass filter for high intensity light source
US4388678A (en) * 1980-10-14 1983-06-14 Turner Wheeler M Reading and viewing lamp
US4509104A (en) * 1982-04-27 1985-04-02 Dainichi-Nippon Cables, Ltd. High temperature resistant lighting device
US4576436A (en) * 1983-01-31 1986-03-18 Maurice Daniel Light distribution and collection assemblies and methods
FR2564982B1 (fr) * 1984-05-25 1987-12-31 Cibie Projecteurs Embout de couplage d'un guide de lumiere a une source lumineuse, notamment pour un eclairage de ville integre a un ensemble projecteur pour automobile
US4709312C1 (en) * 1986-06-24 2001-12-11 Ruud Lighting Inc Floodlight with improved reflector system
US4785216A (en) * 1987-05-04 1988-11-15 Ilc Technology, Inc. High powered water cooled xenon short arc lamp

Also Published As

Publication number Publication date
DK0589016T3 (enExample) 1997-02-24
FR2689961B1 (fr) 1994-12-16
JPH08504291A (ja) 1996-05-07
US5555493A (en) 1996-09-10
DE69304477D1 (de) 1996-10-10
CA2111020C (fr) 1999-02-16
ES2095047T3 (es) 1997-02-01
CA2111020A1 (fr) 1993-10-28
ATE142321T1 (de) 1996-09-15
EP0589016A1 (fr) 1994-03-30
JP3411277B2 (ja) 2003-05-26
FR2689961A1 (fr) 1993-10-15
WO1993021474A1 (fr) 1993-10-28
DE69304477T2 (de) 1997-09-25

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