EP0032273B1 - Système d'éclairage à sources intenses de faibles dimensions - Google Patents

Système d'éclairage à sources intenses de faibles dimensions Download PDF

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Publication number
EP0032273B1
EP0032273B1 EP80201244A EP80201244A EP0032273B1 EP 0032273 B1 EP0032273 B1 EP 0032273B1 EP 80201244 A EP80201244 A EP 80201244A EP 80201244 A EP80201244 A EP 80201244A EP 0032273 B1 EP0032273 B1 EP 0032273B1
Authority
EP
European Patent Office
Prior art keywords
lighting
rays
light
source
pencil
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
Application number
EP80201244A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0032273A1 (fr
Inventor
Francis Schreder
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.)
Financiere Des Applications De L'electricite Sa
Original Assignee
Financiere Des Applications De L'electricite Sa
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 Financiere Des Applications De L'electricite Sa filed Critical Financiere Des Applications De L'electricite Sa
Priority to AT80201244T priority Critical patent/ATE9397T1/de
Publication of EP0032273A1 publication Critical patent/EP0032273A1/fr
Application granted granted Critical
Publication of EP0032273B1 publication Critical patent/EP0032273B1/fr
Expired 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and 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
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/40—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of hollow light guides
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements
    • 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
    • F21W2131/101—Outdoor lighting of tunnels or the like, e.g. under bridges
    • 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
    • F21W2131/103—Outdoor lighting of streets or roads
    • 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
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use

Definitions

  • the present invention relates to a lighting method according to which a light flux is generated by an intense source of small dimension, the light flux is concentrated in at least one light beam which has a small angular opening and which is directed on at least one surface illuminating.
  • the method and the device according to the invention apply more particularly to the lighting at low and medium height of buildings accessible to the public such as railway stations, metro stations, hospital corridors, stores with multiple departments, tunnels and sports complexes, so as to obtain uniform lighting over a large area, making it possible to avoid any dazzling and / or flickering effect.
  • low-rise rooms (3 to 4 m) are generally rooms where visual comfort is a key factor in lighting quality.
  • Interior lighting standards limit glare by imposing maximum luminance values of devices according to the angle of observation (for rooms intended for a difficult visual task of the order of 3500 cd / m2 at 55 ° and of 1500 cd / m2 at 85 °).
  • An interior lighting installation is however not only characterized by a value of average horizontal illumination achieved, but also, for example, by the uniformity of this illumination and by the ratio of vertical illumination / horizontal illumination.
  • French patent application FR-A-2 360 823 proposes for this purpose an installation comprising an optical device directing the intense light flux in a light guide, the surfaces of which are arranged at an acute angle with respect to the another, one being made so as to reflect the light flux and the other, oriented towards the space to be illuminated comprising alternately zones allowing light to pass and reflective zones.
  • a lighting device comprising a light source consisting of a solar collector or an artificial light source, possibly a coupler and a distributor device which distributes in space a divergent beam of light.
  • the major drawback of the device described is the low efficiency of the coupler device which injects the light beam into the light pipe.
  • the quality of the lighting leaves something to be desired since the resulting luminous flux is multidirectional.
  • the device described does not eliminate the effects of dazzling and does not ensure an even distribution of the flux over the entire surface to be illuminated.
  • the object of the present invention has been to design a new lighting method using intense sources of small dimensions and producing an extended illuminating surface, of substantially uniform luminance and from which comes, at all points, a substantially united flux. directional.
  • the new lighting method according to the invention is mainly characterized by the fact that, using a concentrator-distributor device, a light flux emitted by an intense source of small dimensions is modulated in at least one light beam of low angular aperture which is directed on at least one illuminating surface in order to distribute the light therein, characterized in that each aforementioned light beam is judiciously directed with a grazing incidence on a series of prismatic refractors arranged in the manner of 'an optical network at an illuminating surface (6) extending longitudinally with respect to the light beam and on at least one surface which reflects light and extends obliquely with respect to the light beam and the aforementioned optical network.
  • the flux emitted by the source can in particular be molded by the concentrator / distributor device.
  • the reflection surfaces intended to intercept the part of the light flux which does not directly reach the illuminating surface (s) of the lighting device preferably form a conductive corridor and light flux distributor, comprising a single, flat upper reflection surface and two flat lateral reflection surfaces, defining an enclosure of trapezoidal sections, the upper reflection surface of which is inclined relative to the longitudinal axis of the corridor and the lateral reflection surfaces are arranged parallel to and symmetrically with respect to this longitudinal axis of the corridor.
  • the concentrator / distributor device may include a reflector element of any shape provided with openings in directions perpendicular to the axis of reflection of said element, and containing converging lenses arranged so that their focal points are common and their axes are directed towards said openings, this optical device being intended to distribute the light flux from a source placed at the focal points of said lenses into several beams of narrow angular opening, directed in directions perpendicular to the axis of said reflective element, in a number equal to the number of openings in said reflective element, and in a radiation in the direction of the axis of said reflector, constituted by the residual flux which is not not intercepted by said lenses.
  • the new system and the new lighting devices according to the invention comprising a concentrator / distributor device intended to concentrate the light flux from the source and to distribute it over a lighting surface of substantially uniform luminance and optionally a diffuser device intended to orienting the outgoing radiation according to a predetermined substantially multidirectional distribution may, in addition, include in certain particular embodiments, conductive elements, of any cross section, intended to conduct by light reflection from one end to the other the light rays which pass through them and which are not parallel to their generator, and / or distributing devices intended to modify the direction of the light rays.
  • These distributing devices which may in particular be constituted by reflectors or prisms with total reflection, serve, where appropriate, to deflect the light flux emanating from the concentrating device or from a conducting element in the direction of a distributing device for the systems. and devices according to the invention.
  • the aim sought by the lighting system and devices according to the invention is to create, from a high power source, a luminous surface of maximum length and uniform luminance.
  • One of the principles of the new system is to centralize one or more sources in an optical system where thermal, electrical, etc. problems are located, and from which the light is distributed and directed towards "light guides or distributors" (devices dispatchers).
  • FIGS. 1 to 9 Countless modes of implementing the principle of the invention are conceivable as illustrated in FIGS. 1 to 9.
  • the elements of the diffuser device 21 or light surfaces 6 can form curved or broken lines (FIG. 6);
  • the reflector is provided with openings 18 allowing the flow passing through the lenses to intercept the residual flow which it directs downwards (FIG. 10).
  • the distributor elements 5 possibly used in the devices according to the invention preferably consist of simple reflectors 19 (FIG. 11) or total reflection prisms 20 (FIG. 12).
  • the role of the distributing devices 100 is to distribute in a substantially uniform manner over the surface of the diffusing device the light flux received either directly from the concentrating device, or by means of a conductive element or a dispensing device.
  • the illuminating surface of these diffusing devices constitutes either continuous luminous surfaces, or light modules of variable dimensions, adapted to the architectural arrangements, and connected by conductors.
  • FIGS. 13, 14, 15 and 16 Some examples of possible embodiments for the shape of the distributing devices 100 and of the diffusing devices 21 are shown in FIGS. 13, 14, 15 and 16.
  • FIGS. 13 and 14 respectively show a longitudinal and transverse section of a distributor 100 - diffuser 21 system intended to produce a continuous light surface 6.
  • the light surface 6 can be constituted by the diffuser device 21.
  • the distributing devices consist of three parts: the roof 22, the walls 23 and the light base 6 which can be formed by the diffusing device 21.
  • the function of the roof 22 and the walls 23 is to conduct and distribute the light flux uniformly towards the base 6 by reflection.
  • the shape of the roof 22, its inclination as well as that of the walls 23 are studied as a function of the dimensions of the distributor device so as to ensure a regular distribution of the flow towards the base.
  • the roof 22 has a vertical component; it must therefore be inclined with respect to the horizontal so that it intercepts the light rays, mainly horizontal, and reflects them downwards.
  • the angle formed by the “roof” 22 and the horizontal is a function of the height and the length of the distributor device, the light rays only undergoing a single reflection on the roof 22.
  • the goal is to create a light surface with uniform luminance.
  • This surface must have a maximum length which is a function of the concentration produced by the reflector.
  • the distributing device must have a finite width, therefore there must be side walls 16.
  • the role of the walls 23 is therefore to concentrate the flow coming from the source 1 or from the roof 22, to direct it downwards and to distribute it substantially equally over the entire length of the diffuser device 21.
  • These walls 23 receive light rays coming either from the concentrator device, or from the roof 22, or from the opposite wall and return them either to the base 21, or to the roof 22, or to the other wall.
  • FIG. 15 shows, in longitudinal section, another example of a distributor system 100 - diffuser 21 intended to produce a continuous light surface 6
  • FIG. 16 shows, in longitudinal section, an example of a distributor system 100 - diffuser 21 intended to produce produce several light surfaces in module form 7.
  • the diffusing devices 21 may in turn simply consist of translucent surfaces, but are, according to the invention, preferably formed of an element 21 which directs the light flux towards the ground, either by reflection, diffusion or refraction; they are formed either by deflectors, reflectors or by a prismatic protector.
  • the diffusing devices according to the invention are preferably made from refractors which intercept all the flow directed towards the base and distribute it towards the room by controlling its distribution. These refractors are calculated so as to capture the rays emitted by the distributor device and reaching it under a grazing incidence and to reorient them in a direction mainly making an angle between -30 ° and 30 ° relative to the perpendicular to its surface. illuminating when flat and horizontal. To obtain this result, the property of total reflection inside a prism is used almost exclusively.

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)
EP80201244A 1980-01-04 1980-12-29 Système d'éclairage à sources intenses de faibles dimensions Expired EP0032273B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80201244T ATE9397T1 (de) 1980-01-04 1980-12-29 Beleuchtungssystem mit kleinen lichtquellen grosser leistung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU82057 1980-01-04
LU82057A LU82057A1 (fr) 1980-01-04 1980-01-04 Nouveau systeme et nouveaux dispositifs pour produire un eclairage sensiblement uniforme a partir de sources intenses de faibles dimensions

Publications (2)

Publication Number Publication Date
EP0032273A1 EP0032273A1 (fr) 1981-07-22
EP0032273B1 true EP0032273B1 (fr) 1984-09-12

Family

ID=19729321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80201244A Expired EP0032273B1 (fr) 1980-01-04 1980-12-29 Système d'éclairage à sources intenses de faibles dimensions

Country Status (7)

Country Link
EP (1) EP0032273B1 (xx)
AT (1) ATE9397T1 (xx)
DE (1) DE3069194D1 (xx)
ES (1) ES498292A0 (xx)
LU (1) LU82057A1 (xx)
PT (1) PT72262B (xx)
YU (1) YU327880A (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412018B (de) * 2002-04-12 2004-08-26 Bartenbach Christian Beleuchtungseinrichtung zur beleuchtung von räumen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR408323A (xx) * 1900-01-01
DE499144C (de) * 1930-06-02 Joaquin De Noronha Beleuchtungsvorrichtung mit einer Reihe schraeg gestellter reflektierender Flaechen
FR729014A (fr) * 1931-03-07 1932-07-16 Iliyne Berline Ets Procédé de signalisation lumineuse pour toutes applications
FR1057616A (fr) * 1952-06-03 1954-03-09 Réflecteur à surfaces paraboliques multiples
GB862073A (en) * 1958-10-27 1961-03-01 Thorn Electrical Ind Ltd Improvements in means for lighting spaced compartments
FR1358378A (fr) * 1962-09-27 1964-04-17 Ind Mecanique Et Automobile S Dispositif d'éclairage à plusieurs fonctions
US4152752A (en) * 1977-09-06 1979-05-01 Niemi Gary A Illumination system and apparatus therefor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2273228A1 (en) * 1974-05-27 1975-12-26 Aizenberg Julian Interior lighting fitting - with elastic transparent light guide having reflective partial coating

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR408323A (xx) * 1900-01-01
DE499144C (de) * 1930-06-02 Joaquin De Noronha Beleuchtungsvorrichtung mit einer Reihe schraeg gestellter reflektierender Flaechen
FR729014A (fr) * 1931-03-07 1932-07-16 Iliyne Berline Ets Procédé de signalisation lumineuse pour toutes applications
FR1057616A (fr) * 1952-06-03 1954-03-09 Réflecteur à surfaces paraboliques multiples
GB862073A (en) * 1958-10-27 1961-03-01 Thorn Electrical Ind Ltd Improvements in means for lighting spaced compartments
FR1358378A (fr) * 1962-09-27 1964-04-17 Ind Mecanique Et Automobile S Dispositif d'éclairage à plusieurs fonctions
US4152752A (en) * 1977-09-06 1979-05-01 Niemi Gary A Illumination system and apparatus therefor

Also Published As

Publication number Publication date
ES8202419A1 (es) 1982-01-16
ATE9397T1 (de) 1984-09-15
EP0032273A1 (fr) 1981-07-22
LU82057A1 (fr) 1981-09-10
PT72262B (fr) 1982-01-05
DE3069194D1 (en) 1984-10-18
PT72262A (fr) 1981-01-01
ES498292A0 (es) 1982-01-16
YU327880A (en) 1983-01-21

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