CH475508A - Lighting device - Google Patents

Lighting device

Info

Publication number
CH475508A
CH475508A CH918267A CH918267A CH475508A CH 475508 A CH475508 A CH 475508A CH 918267 A CH918267 A CH 918267A CH 918267 A CH918267 A CH 918267A CH 475508 A CH475508 A CH 475508A
Authority
CH
Switzerland
Prior art keywords
sub
lighting device
prism
face
reflecting surface
Prior art date
Application number
CH918267A
Other languages
French (fr)
Inventor
Werding Winfried
Original Assignee
Werding Winfried
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 Werding Winfried filed Critical Werding Winfried
Priority to CH918267A priority Critical patent/CH475508A/en
Publication of CH475508A publication Critical patent/CH475508A/en

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
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—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 planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24-F21S41/28
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • 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
    • 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
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • 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
    • G02B6/0011—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 planar or of plate-like form
    • G02B6/0066—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 planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources

Description

  

      Dispositif    d'éclairage    Dans bien des cas     l'utilisateur    aimerait disposer d'une  source de lumière répartie le plus uniformément possible  sur une certaine longueur sans être ébloui par le foyer  d'une     source        ponctuelle    ou linéaire comme c'est le cas  des lampes, usuelles.  



  La présente     invention    a précisément pour objet un  dispositif d'éclairage caractérisé par le fait qu'il com  prend au moins .une     source    lumineuse émettant un fais  ceau parallèle, une surface réfléchissante éclairée par le  faisceau,     s'étendant    parallèlement à un plan et présentant  une section droite en dents de scie, les flancs de ces dents  en regard dudit faisceau étant orientés de telle façon que  les rayons incidents du faisceau soient réfléchis dans une  direction perpendiculaire audit plan.  



  Le dessin annexé représente, à titre d'exemple, une  forme     d'exécution    de l'objet de l'invention.  



  La     fig.    1 en représente une vue en     plan.     



  La     fig.    2 en représente une vue en coupe selon     11-1I     de la     fig.    1.  



  Le dispositif d'éclairage représenté au dessin com  prend deux projecteurs     fixes    1 et 2 situés en regard l'un  de l'autre et émettant un faisceau parallèle 3, respective  ment 4. Les axes de ces deux faisceaux coïncident l'un  avec l'autre.  



  Entre les deux projecteurs 1 et 2, sur la trajectoire des       faisceaux    3 et 4, est disposé un corps prismatique 5 en  matière transparente, dont les génératrices sont parallèles  aux faisceaux et dont les extrémités présentent des faces  planes 6 et 7 dirigées obliquement par rapport aux fais  ceaux, l'angle formé par ses parois avec les faisceaux  étant tel que ces faisceaux soient déviés par réfraction en  direction de la     face    postérieure 9 du prisme 5. Cette     face     présente une section en dents de scie, les flancs de ces  dents frappés par les rayons incidents du faisceau étant  orientés de telle manière que les rayons réfléchis 10  soient perpendiculaires à l'axe du prisme.

   La réflexion    sur la     surface    dentelée 9 est assurée par un     étamage    pro  tégé par une couche 8 en matière opaque ou transpa  rente. La surface dentelée 9 peut être obtenue soit par  moulage ou par fraisage.  



  La forme d'exécution représentée étant avant tout  destinée à équiper un véhicule automobile, le prisme 5  est fixé sur un support 11 orientable autour d'un axe 12.  Le passage des feux de route en code se fera donc sim  plement par le pivotement du support 11.  



  La face antérieure 13 du prisme sera en outre légère  ment bombée de façon à obtenir la dispersion     nécessaire     du     faisceau.    L'éclairage latéral pourra être réalisé sim  plement en prévoyant à chaque extrémité du prisme des  zones de dispersion 14 et 15.  



       Le    phare ainsi réalisé sera     antiéblouissant.    Le pas  sage en code ne     nécessitant    plus de commutation électri  que, la durée de vie des     sources    lumineuses 1 et 2 sera  notablement plus élevée. En outre, il sera possible de  loger     ces    sources dans les ailes du véhicule, à l'abri des  chocs et de la poussière.  



  Le prisme peut être réalisé en matière incassable et  monté     élastiquement    de manière à amortir le choc d'une  collision et augmenter ainsi la sécurité des passagers.  



  En variante, il est possible de remplacer le prisme 5  par une simple surface réfléchissante en dents de scie, les  faisceaux lumineux 3 et 4 étant dirigés directement sur  cette     surface    de manière à être réfléchis en avant.  



  L'application aux véhicules automobiles n'a été citée  qu'à titre d'exemple. Un tel dispositif d'éclairage trou  vera de nombreuses autres applications, telles que éclai  rage de salles d'opérations, éclairage latéral de route ou  de pistes d'aérodromes au moyen d'une barrière ou d'une  glissière de sécurité constituée précisément par une sur  face ou un prisme réfléchissant, un tel éclairage étant  susceptible de rendre de grands services, notamment par  brouillard.      Notons     qu'il    est sans autre possible de supprimer  l'une des     sources    lumineuses, une     source    suffisant à ba  layer toute la     surface    réfléchissante.

   En outre, la     surface     réfléchissante sera en pratique dentelée beaucoup plus  finement que représenté au dessin, de manière à réduire  les zones d'ombre.



      Lighting device In many cases the user would like to have a light source distributed as uniformly as possible over a certain length without being dazzled by the focus of a point or linear source as is the case with lamps, usual.



  The present invention specifically relates to a lighting device characterized by the fact that it comprises at least a light source emitting a parallel beam, a reflecting surface illuminated by the beam, extending parallel to a plane and having a straight sawtooth section, the flanks of these teeth facing said beam being oriented such that the incident rays of the beam are reflected in a direction perpendicular to said plane.



  The appended drawing represents, by way of example, an embodiment of the object of the invention.



  Fig. 1 shows a plan view.



  Fig. 2 shows a sectional view along 11-1I of FIG. 1.



  The lighting device shown in the drawing com takes two fixed projectors 1 and 2 located opposite each other and emitting a parallel beam 3, respectively 4. The axes of these two beams coincide with each other. other.



  Between the two projectors 1 and 2, on the path of the beams 3 and 4, is arranged a prismatic body 5 in transparent material, the generatrices of which are parallel to the beams and the ends of which have flat faces 6 and 7 directed obliquely with respect to the beams. beams, the angle formed by its walls with the beams being such that these beams are deflected by refraction in the direction of the rear face 9 of the prism 5. This face has a sawtooth section, the flanks of these teeth struck by the incident rays of the beam being oriented such that the reflected rays 10 are perpendicular to the axis of the prism.

   The reflection on the indented surface 9 is provided by a tinning protected by a layer 8 of opaque or transparent material. The serrated surface 9 can be obtained either by molding or by milling.



  The embodiment shown being primarily intended to equip a motor vehicle, the prism 5 is fixed to a support 11 which can be oriented around an axis 12. The passage of the high beam headlights in code will therefore be done simply by the pivoting of the support 11.



  The anterior face 13 of the prism will also be slightly curved so as to obtain the necessary dispersion of the beam. Lateral lighting can be achieved simply by providing dispersion zones 14 and 15 at each end of the prism.



       The lighthouse thus produced will be anti-glare. Since the step wise in code no longer requires electrical switching, the lifetime of light sources 1 and 2 will be considerably longer. In addition, it will be possible to accommodate these sources in the fenders of the vehicle, protected from shocks and dust.



  The prism may be made of unbreakable material and resiliently mounted so as to absorb the impact of a collision and thus increase the safety of the passengers.



  As a variant, it is possible to replace the prism 5 by a simple reflecting sawtooth surface, the light beams 3 and 4 being directed directly on this surface so as to be reflected forward.



  The application to motor vehicles was cited only as an example. Such a lighting device will have many other applications, such as lighting of operating theaters, lateral lighting of roads or aerodrome runways by means of a barrier or a guardrail constituted precisely by a on the face or a reflective prism, such lighting being capable of rendering great services, in particular in fog. Note that it is without further possible to remove one of the light sources, a source sufficient to layer the entire reflecting surface.

   In addition, the reflecting surface will in practice be much finer serrated than shown in the drawing, so as to reduce the shadow areas.

Claims (1)

REVENDICATION I Dispositif d'éclairage, caractérisé par le fait qu'il comprend au moins une source lumineuse émettant un faisceau parallèle, une surface réfléchissante éclairée par le faisceau, s'étendant parallèlement à un plan et pré sentant une section droite en dents de scie, les flancs de ces dents en regard dudit faisceau étant orientés de telle façon que les rayons incidents du faisceau soient réflé chis dans une direction perpendiculaire audit plan. SOUS-REVENDICATIONS 1. CLAIM I Lighting device, characterized in that it comprises at least one light source emitting a parallel beam, a reflecting surface illuminated by the beam, extending parallel to a plane and having a straight sawtooth section , the flanks of these teeth facing said beam being oriented such that the incident rays of the beam are reflected in a direction perpendicular to said plane. SUB-CLAIMS 1. Dispositif d'éclairage selon la revendication I, caractérisé par le fait que ladite surface réfléchissante est formée par une face étamée d'un corps prismatique en matière transparente. 2. Dispositif d'éclairage selon la sous-revendication I, caractérisé par le fait que les génératrices du prisme sont parallèles au faisceau de la source lumineuse, la base du prisme étant oblique par rapport à ce faisceau de manière à diriger, par réfraction, le faisceau sur la surface réfléchissante. 3. Lighting device according to Claim I, characterized in that the said reflecting surface is formed by a tinned face of a prismatic body made of transparent material. 2. Lighting device according to sub-claim I, characterized in that the generatrices of the prism are parallel to the beam of the light source, the base of the prism being oblique with respect to this beam so as to direct, by refraction, the beam on the reflecting surface. 3. Dispositif d'éclairage selon la revendication ou l'une des sous-revendications 1 ou 2, caractérisé par le fait qu'il comprend deux projecteurs disposés à chaque extrémité de la surface réfléchissante. 4. Dispositif d'éclairage selon la sous-revendication 1 ou 2, caractérisé par le fait que le corps prismatique est en verre organique incassable. Lighting device according to claim or one of sub-claims 1 or 2, characterized in that it comprises two projectors arranged at each end of the reflecting surface. 4. Lighting device according to sub-claim 1 or 2, characterized in that the prismatic body is made of unbreakable organic glass. 5. Dispositif d'éclairage selon la sous-revendication 4, caractérisé par le fait que la face du prisme opposée à la face réfléchissante est au moins en partie légèrement bombée pour obtenir une divergence du faisceau réfléchi. 5. Lighting device according to sub-claim 4, characterized in that the face of the prism opposite the reflecting face is at least partly slightly curved to obtain a divergence of the reflected beam. REVENDICATION II Utilisation du dispositif selon la sous-revendication 5 en tant que phare d'un véhicule automobile, caractérisée par le fait que la source de lumière est fixe et que le corps prismatique est monté sur un support pivotant autour d'un axe horizontal dont le pivotement est com mandé depuis l'intérieur du véhicule. SOUS-REVENDICATIONS 6. CLAIM II Use of the device according to sub-claim 5 as the headlight of a motor vehicle, characterized in that the light source is fixed and that the prismatic body is mounted on a support pivoting about a horizontal axis of which pivoting is controlled from inside the vehicle. SUB-CLAIMS 6. Utilisation selon la revendication Il, caractérisée par le fait que la face du prisme opposée à la face réflé chissante présente deux zones latérales dont la surface est irrégulière pour obtenir une dispersion latérale du faisceau réfléchi. 7. Utilisation selon la sous-revendication 6, caracté risée par le fait que le corps prismatique occupe tout l'avant du véhicule, les ailes abritant deux projecteurs dont les faisceaux sont dirigés sur le prisme. Use according to Claim II, characterized in that the face of the prism opposite the reflective face has two lateral zones, the surface of which is irregular in order to obtain lateral dispersion of the reflected beam. 7. Use according to sub-claim 6, characterized in that the prismatic body occupies the entire front of the vehicle, the wings housing two projectors whose beams are directed onto the prism.
CH918267A 1967-06-28 1967-06-28 Lighting device CH475508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH918267A CH475508A (en) 1967-06-28 1967-06-28 Lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH918267A CH475508A (en) 1967-06-28 1967-06-28 Lighting device

Publications (1)

Publication Number Publication Date
CH475508A true CH475508A (en) 1969-07-15

Family

ID=4349227

Family Applications (1)

Application Number Title Priority Date Filing Date
CH918267A CH475508A (en) 1967-06-28 1967-06-28 Lighting device

Country Status (1)

Country Link
CH (1) CH475508A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642736A (en) * 1984-07-02 1987-02-10 Mitsubishi Rayon Company, Ltd. Light diffuser
DE9204063U1 (en) * 1992-03-26 1993-04-15 Buechner, Thomas, 8901 Deubach, De
US5408388A (en) * 1992-01-24 1995-04-18 Stanley Electric Co., Ltd. Planar illuminating device
EP1106905A3 (en) * 1999-11-30 2002-02-06 GEBRUEDER LUDWIG GmbH Luminaire
EP1033526A3 (en) * 1999-03-02 2002-03-13 VALEO Beleuchtung Deutschland GmbH Lamp, in particular for motor vehicles
EP1085253A3 (en) * 1999-09-14 2002-04-24 VALEO Beleuchtung Deutschland GmbH Lamp, in particular for motor vehicles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642736A (en) * 1984-07-02 1987-02-10 Mitsubishi Rayon Company, Ltd. Light diffuser
US5408388A (en) * 1992-01-24 1995-04-18 Stanley Electric Co., Ltd. Planar illuminating device
DE9204063U1 (en) * 1992-03-26 1993-04-15 Buechner, Thomas, 8901 Deubach, De
EP1033526A3 (en) * 1999-03-02 2002-03-13 VALEO Beleuchtung Deutschland GmbH Lamp, in particular for motor vehicles
EP1085253A3 (en) * 1999-09-14 2002-04-24 VALEO Beleuchtung Deutschland GmbH Lamp, in particular for motor vehicles
EP1106905A3 (en) * 1999-11-30 2002-02-06 GEBRUEDER LUDWIG GmbH Luminaire

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