EP0191264B1 - Dispositif anti-éblouissant pour appareils d'éclairage de grande dimension - Google Patents

Dispositif anti-éblouissant pour appareils d'éclairage de grande dimension Download PDF

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Publication number
EP0191264B1
EP0191264B1 EP85730137A EP85730137A EP0191264B1 EP 0191264 B1 EP0191264 B1 EP 0191264B1 EP 85730137 A EP85730137 A EP 85730137A EP 85730137 A EP85730137 A EP 85730137A EP 0191264 B1 EP0191264 B1 EP 0191264B1
Authority
EP
European Patent Office
Prior art keywords
prisms
prism
glare
lighting means
side face
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
EP85730137A
Other languages
German (de)
English (en)
Other versions
EP0191264A2 (fr
EP0191264A3 (en
EP0191264B2 (fr
Inventor
Armin Bansbach
Dieter Albert
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.)
Semperlux GmbH
Original Assignee
Semperlux GmbH
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
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Application filed by Semperlux GmbH filed Critical Semperlux GmbH
Priority to AT85730137T priority Critical patent/ATE56804T1/de
Publication of EP0191264A2 publication Critical patent/EP0191264A2/fr
Publication of EP0191264A3 publication Critical patent/EP0191264A3/de
Publication of EP0191264B1 publication Critical patent/EP0191264B1/fr
Application granted granted Critical
Publication of EP0191264B2 publication Critical patent/EP0191264B2/fr
Anticipated expiration legal-status Critical
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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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape

Definitions

  • the present invention relates to a device for removing glare from large-area lamps of the type specified in the preamble of the main claim.
  • the lamps used which have a high intrinsic luminance, must therefore be glare-free. This is particularly the case with large-area lamps such as frosted incandescent lamps, high pressure mercury lamps or fluorescent lamps.
  • Known anti-glare measures are the arrangement of simple screens, mirror systems and prism systems. Mirror systems and prism systems generally have the advantage that the light is not destroyed by absorption, but can be directed in the desired directions.
  • a disadvantage of conventional prism systems has been that the light sources are very close to the prisms due to their construction, which makes it inevitable that the light rays not only shine onto the prisms from a wide variety of angles, but that they can also radiate in an uncontrolled manner, which results in the intended effect is badly deteriorated.
  • the invention has for its object to provide a prism system in which, despite the arrangement of large-area lamps or large-area illuminants close to a prism, a controlled beam path is made possible, which in particular allows lateral light rays to emerge without glare in the range up to approximately 30 ° relative to the horizontal.
  • the three-sided prism 1 shown in Fig. 1 shows a cross section in which the one side surface 2 is arranged vertically and the other side surface 3 horizontally, the side surfaces 2 and 3 forming an angle of 90 ° with each other and the horizontal side surface 3 with the Base 4 forms a wedge angle of 40 °. Glare control and light guidance is achieved by total reflection inside the prism and by refraction of the light rays. From the large-area illuminant 5, which is indicated by a dash-dotted vertical line, the light rays 6 impinge on the prism 1 from a wide variety of angles. A strong radiation 7 then takes place from the prism 1 in the lower region and a weak radiation 8 in the upper region, while a lateral region 9 extends in between, from which no radiation takes place at all without light being destroyed by absorption.
  • the glare effect achieved is, as has been shown in detailed test series, the best in the wedge angle range around 40 °, a slight scatter in the efficiency depending on the respective refractive index of the material used.
  • the material for the prisms is crystal-clear plastics or mineral glass.
  • a large-area illuminant can also be fully glare-free in this way. It would of course be possible in principle to get by with a prism, which would have to be the size of the illuminant. Theoretically, such a prism would cause the smallest possible interference due to rounding radii of the prism edges that are unavoidable in practice, but for reasons of material savings and manufacturing possibilities, prism rings or squares, rectangles and the like will be used. use composite prism poles.
  • the stacked prisms enclose the standing or lying lamp preferably symmetrically.
  • 3 shows a standing ellipsoidal illuminant 5 in a system of prism rings 1 stacked one above the other.
  • the ellipsoid lamp 5 is fastened in a socket 10 and this is connected to the prisms in the usual way by fastening means 11.
  • Such an ellipsoidal lamp 5 can, of course, also be placed horizontally in a rectangular prism system (FIGS. 4a and 4b).
  • the rectangular prism system is composed of prism poles 1.
  • Fluorescent lamps 12 can also be glare-free in the same way, as can be seen from FIGS. 5a and 5b.
  • the prism system has the same structure as the horizontal ellipsoid lamp in FIGS. 4a and 4b.
  • the same glare control advantages also result in the recessed ceiling spotlight shown in FIG. 6.
  • an ellipsoid lamp 5 with socket 10 is arranged in the ceiling such that part of the lamp protrudes below a ceiling plate 13.
  • This protruding part is in turn surrounded by annular prisms 1 stacked one on top of the other.
  • annular prisms 1 stacked one on top of the other.
  • Fig. 7 shows a pendulum heater that hangs from a ceiling 13.
  • the large-area illuminant 5 is surrounded in a cylinder shape by a prism system consisting of stacked prisms, wherein the stacked prisms can also be made in one piece. No side radiation occurs with this anti-glare variant either.
  • an undesired effect can occur at high luminous intensities, which is indicated in FIG.
  • the rays 14 originating from the illuminant can strike the base surface 4 of the prism in such a way that a small proportion of surface reflection 15 reflects off the base surface 4 and passes through the horizontal side surface 3 of the prism located above it to its base surface and then through the vertical side surface 2 in radiation 16 exit.
  • Such an unwanted risk of glare is countered either by roughening or blackening the horizontal side surfaces of the prisms, so that the reflection portion 15 cannot enter the prism above.
  • an opaque intermediate ring 17 can be attached below the horizontal side surface 3. In this way, complete lateral glare reduction is achieved even at high light intensities.
  • the stacked prisms can e.g. be manufactured as a one-piece cylinder. Better results are achieved, however, if the stacked prism rings or rods 1 are connected by threaded rods in a manner known per se, because in this way the unavoidable rounding radii at the prism edges which are caused by production can be obtained with greater precision, i.e. turn out smaller than with a one-piece cylinder.
  • 10 shows details of such an arrangement, again with the illuminant 5 in a socket 10 and fastening means 11, the prism rings 1 being connected by threaded rods 19. However, Fig. 10 also shows that additional top covers can be attached by means of head mirrors or heat shields 20. This is recommended if you illuminate the bulbs with the prism systems in clear plastic moldings, e.g. used as spherical lights.
  • the diameter of the prism rings 1 can be variable, so that the view of the prism system from the side no longer has a cylindrical shape.
  • Such embodiments are also interesting anti-glare variants, particularly for spherical lights.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Claims (8)

1. Dispositif anti-éblouissant pour appareils d'éclairage de grande dimension servant à l'éclairage intérieur ou extérieur, du type utilisant des prismes superposés qui entourent l'appareil d'éclairage, caractérisé en ce que des prismes (1) à section triangulaire, dont les faces latérales (2, 3) font un angle de 90°, sont disposés avec l'une (2) de leurs faces latérales orientée verticalement et leur autre face latérale (3) orientée horizontalement, les arêtes opposées aux faces latérales verticales (2) étant dirigées vers l'appareil d'éclairage, et en ce que la face latérale horizontale (3) fait un angle de 35° à 45°, de préférence de 40°, avec la face de base (4) tournée vers le haut.
2. Dispositif anti-éblouissant suivant la revendication 1, caractérisé en ce que les prismes sont réunis entre eux d'une manière séparable ou non.
3. Dispositif anti-éblouissant suivant la revendication 1 ou 2, caractérisé en ce que les prismes (1) sont réalisés sous la forme d'anneaux circulaires ou ovales.
4. Dispositif anti-éblouissant suivant la revendication 1 ou 2, caractérisé en ce que les prismes (1) sont constitués de barres qui sont assemblées de façon à former des carrés, des rectangles ou d'autres polygones.
5. Dispositif anti-éblouissant suivant la revendication 3 ou 4, caractérisé en ce que les faces latérales horizontales (3) des prismes (1) sont rendues rugueuses ou sont noircies.
6. Dispositif anti-éblouissant suivant la revendication 3 ou 4, caractérisé en ce que des feuilles opaques (15) sont disposées entre les prismes (1).
7. Dispositif anti-éblouissant suivant la revendication 3 ou 4, caractérisé en ce que des feuilles opaques colorées sont disposées entre les prismes (1).
8. Dispositif anti-éblouissant suivant la revendication 3, caractérisé en ce que les diamètres des prismes annulaires (1) ont des valeurs différentes.
EP85730137A 1985-02-13 1985-10-04 Dispositif anti-éblouissant pour appareils d'éclairage de grande dimension Expired - Lifetime EP0191264B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85730137T ATE56804T1 (de) 1985-02-13 1985-10-04 Einrichtung zum entblenden von grossflaechigen leuchtmitteln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8504325U 1985-02-13
DE8504325U DE8504325U1 (de) 1985-02-13 1985-02-13 Einrichtung zum Entblenden von großflächigen Leuchtmitteln

Publications (4)

Publication Number Publication Date
EP0191264A2 EP0191264A2 (fr) 1986-08-20
EP0191264A3 EP0191264A3 (en) 1988-07-13
EP0191264B1 true EP0191264B1 (fr) 1990-09-19
EP0191264B2 EP0191264B2 (fr) 1993-10-06

Family

ID=6777502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85730137A Expired - Lifetime EP0191264B2 (fr) 1985-02-13 1985-10-04 Dispositif anti-éblouissant pour appareils d'éclairage de grande dimension

Country Status (6)

Country Link
US (1) US4669034A (fr)
EP (1) EP0191264B2 (fr)
JP (1) JPS61188805A (fr)
AT (1) ATE56804T1 (fr)
AU (1) AU578326B2 (fr)
DE (2) DE8504325U1 (fr)

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US4972338A (en) * 1985-06-13 1990-11-20 Intel Corporation Memory management for microprocessor system
US4961622A (en) * 1988-02-25 1990-10-09 University Of Houston - University Park Optical coupler and refractive lamp
US4922394A (en) * 1988-10-20 1990-05-01 Liu C H Glass desk lamp
US4969075A (en) * 1989-05-05 1990-11-06 Steelcase Inc. Low-glare light
DE9104995U1 (de) * 1991-04-23 1991-06-27 Siemens AG, 8000 München Direktleuchte
SE503306C2 (sv) * 1994-03-16 1996-05-13 Itab Ind Ab Belysningsanordning
US5440467A (en) * 1994-04-22 1995-08-08 Steelcase Inc. Task light
US5636057A (en) * 1995-02-10 1997-06-03 Ecolux Inc. Prismatic toroidal lens and traffic signal light using this lens
JPH1097213A (ja) * 1996-09-25 1998-04-14 Matsushita Electric Works Ltd フラッシュ型呼出チャイム
US6570505B1 (en) 1997-12-30 2003-05-27 Gelcore Llc LED lamp with a fault-indicating impedance-changing circuit
JP3104870B2 (ja) * 1998-01-29 2000-10-30 スタンレー電気株式会社 自動車用ランプ
US6915039B2 (en) * 2002-11-05 2005-07-05 Federal-Mogul World Wide, Inc. Light collectors with angled input surfaces for use in an illumination system
WO2005010433A1 (fr) * 2003-07-24 2005-02-03 Johannes Jungel-Schmid Dispositif d'eclairage de locaux
DE102005047746A1 (de) 2005-09-28 2007-05-24 Semperlux Ag - Lichttechnische Werke - Anordnung zum gezielten Entblenden von Außenleuchten in vertikaler und horizontaler Achse
US7527399B2 (en) * 2007-05-14 2009-05-05 Thomas Feiereisen Self-contained full light cut-off light pollution-free bulb
CN101800011B (zh) * 2010-04-07 2014-04-30 海洋王照明科技股份有限公司 一种通路标示装置
DE102019103855B4 (de) 2019-02-15 2021-09-30 Lisa Dräxlmaier GmbH Fahrzeuginterieur-Beleuchtungsvorrichtung

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US616400A (en) * 1898-12-20 Eemy burger
US1596161A (en) * 1924-10-21 1926-08-17 Holophane Glass Company Luminaire
GB256197A (en) * 1925-07-29 1926-10-28 Charles Gaston Picard Improvements in headlights for automobiles and like vehicles
US2003804A (en) * 1932-07-21 1935-06-04 Gen Motors Corp Lens
GB429340A (en) * 1933-08-25 1935-05-27 Andries Carl Cilliers Optical device suitable for selectively transmitting non-parallel light rays
US2015235A (en) * 1933-11-03 1935-09-24 Holophane Co Inc Prismatic light controlling device and method of making the same
CH186375A (de) * 1935-05-03 1936-09-15 Foltzer Joseph Glasreflektor an Lampen.
US3113728A (en) * 1960-06-24 1963-12-10 Owens Illinois Glass Co Artificial light and daylighting structure
US3371201A (en) * 1964-12-16 1968-02-27 Joslyn Mfg & Supply Co Luminaire
GB1209377A (en) * 1968-07-31 1970-10-21 Ignacio Goytisolo Taltavull Lighting fitting
JPS4811754U (fr) * 1971-06-21 1973-02-09
JPS5831391Y2 (ja) * 1973-09-28 1983-07-12 シ−メンス アクチエンゲゼルシヤフト コイルケンカイヨウホジグ
US3988609A (en) * 1975-03-14 1976-10-26 K-S-H, Inc. Lighting panel and luminaire using it
US4118763A (en) * 1976-04-12 1978-10-03 General Electric Company Variable transmission prismatic refractors
AU2183677A (en) * 1977-02-01 1978-08-10 Shemitz S R Lighting system
US4233651A (en) * 1978-03-30 1980-11-11 Keene Corporation Work area lighting system
US4462068A (en) * 1982-06-24 1984-07-24 Manville Service Corporation Luminaire with improved lens structure

Also Published As

Publication number Publication date
JPS61188805A (ja) 1986-08-22
JPH0375963B2 (fr) 1991-12-04
EP0191264A2 (fr) 1986-08-20
US4669034A (en) 1987-05-26
DE3579806D1 (de) 1990-10-25
AU5001785A (en) 1986-08-21
EP0191264A3 (en) 1988-07-13
ATE56804T1 (de) 1990-10-15
DE8504325U1 (de) 1985-07-04
EP0191264B2 (fr) 1993-10-06
AU578326B2 (en) 1988-10-20

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