EP2473776A1 - Signal lumineux - Google Patents

Signal lumineux

Info

Publication number
EP2473776A1
EP2473776A1 EP10742122A EP10742122A EP2473776A1 EP 2473776 A1 EP2473776 A1 EP 2473776A1 EP 10742122 A EP10742122 A EP 10742122A EP 10742122 A EP10742122 A EP 10742122A EP 2473776 A1 EP2473776 A1 EP 2473776A1
Authority
EP
European Patent Office
Prior art keywords
light source
lens
optical system
light
signal
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.)
Withdrawn
Application number
EP10742122A
Other languages
German (de)
English (en)
Inventor
Rolf Eckl
Jörg BIRKHOLZ
Uwe Frost
Kay Köster
Zeljko Marincic
Norbert PÖPPLOW
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP2473776A1 publication Critical patent/EP2473776A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F21V5/04—Refractors for light sources of lens shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2207/00—Features of light signals
    • B61L2207/02—Features of light signals using light-emitting diodes [LEDs]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/06—Simple or compound lenses with non-spherical faces with cylindrical or toric faces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens

Definitions

  • the invention relates to a light signal with semiconductor light source and optical system for representing signal terms, in particular in the case of rail-bound traffic routes.
  • an incandescent filament 1 of an incandescent lamp is used as the light source.
  • the filament light signal essentially consists of the incandescent lamp and an optical system 2 with a full lens or stepped lens and a color filter glass (not shown) for realizing the usual signal colors.
  • FIG. 2 illustrates the emission profiles corresponding to the position of the filament coil 1 in the horizontal direction H and in the vertical direction V. It can be seen that beam expansion occurs in the horizontal direction H. This radiating profile, widened in the horizontal direction H, which in particular in the far-range region results in an improvement in the signal visibility, results automatically in the case of incandescent lamps due to the elongated geometry of the filament coil 1.
  • the invention has for its object to provide a light signal of the generic type, in which the above-mentioned disadvantages are significantly reduced, in particular, a reduction of the components is to be assumed.
  • the object is achieved in that the semiconductor light source as a point light source, in particular as a single LED or as a single HLED - high current LED - is formed, and that the optical system has an axisymmetric cylindrical lens and a rotationally symmetrical converging lens, in particular Fresnel lens.
  • the horizontal beam expansion for the light of the point light source is achieved via the cylindrical or cylinder-like end face of the cylindrical lens.
  • the adjustment of the horizontal direction is realized by a fixed installation position for signal screen alignment.
  • the radius of the cylindrical lens is a multiple of the lens focal length, whereby the planar lens illumination, the Kol- limierende effect of the rotationally symmetrical converging lens and the homogeneity of the light spot in the far field are practically not affected.
  • a high-intensity HLED with lambert-shaped radiation behavior is preferably used as a point light source.
  • the combination of point light source / cylindrical lens / convergent lens results in a significant cost reduction compared to the known combination LED matrix / lens matrix, by which the filament filament of an incandescent lamp is to be emulated. Since the beam shaping of the point light source by means of the optical system of cylinder lens and converging lens corresponds to the radiation behavior of the light bulb signal, existing additional optics can still be used.
  • the HLED as a single component leads to simplified board layout and space savings, so that a separate light source module can be dispensable.
  • it is advantageous that different point light sources can be combined with a single optical system, while the LED matrix and the lens matrix must be precisely matched to one another. The number of optical and electrical components is considerably reduced compared to the matrix variant. The driver assembly is simpler and ultimately results in a reduced logistical effort.
  • the optical system with cylindrical lens and condenser lens is formed as a one-piece plastic injection-molded part. In this way, there is a further simplification with a significant cost advantage.
  • FIG. 1 shows a filament light signal
  • FIG. 2 shows a horizontal and vertical emission profile
  • Figure 3 is a light signal of the claimed type
  • FIG. 4 shows an optical system for a light signal according to FIG. 3.
  • a single white HLED high-current LED-3 is used as a point light source. This is arranged on a circuit board 4 with heat sink 5.
  • a color filter film arrangement 7 is provided between the HLED 3 and an optical system 6.
  • the optical system 6 is formed as a one-piece lens combination, which is shown in Figure 4 in plan view and two side views.
  • the optical system 6 is made of plastic injection molding, wherein a light-entry side axisymmetric cylindrical lens mold 8 is combined with a cylinder radius R with light exit side rotationally symmetric Fresnel structures 9. Due to the cylindrical lens mold 8, the required beam expansion in the horizontal direction H according to FIG. 2 results in a simple manner in the installation position in the signal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Traffic Control Systems (AREA)

Abstract

L'invention concerne un signal lumineux comportant une source de lumière à semiconducteur et un système optique (6) destinés à l'affichage d'indications de signaux, notamment sur des voies de circulation ferroviaire. L'invention vise à obtenir de manière simple les propriétés avantageuses d'un signal lumineux à filament incandescent, notamment en termes d'élargissement du faisceau dans la direction horizontale (H). A cet effet, la source de lumière à semiconducteur est une source de lumière ponctuelle, notamment une DEL (diode électroluminescente) individuelle ou une HDEL (diode électroluminescente à haute intensité) individuelle (3), et le système optique (6) comporte une lentille cylindrique à symétrie axiale et une lentille convergente à symétrie de révolution, en particulier une lentille de Fresnel.
EP10742122A 2009-08-31 2010-07-27 Signal lumineux Withdrawn EP2473776A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009039704A DE102009039704A1 (de) 2009-08-31 2009-08-31 Lichtsignal
PCT/EP2010/060881 WO2011023479A1 (fr) 2009-08-31 2010-07-27 Signal lumineux

Publications (1)

Publication Number Publication Date
EP2473776A1 true EP2473776A1 (fr) 2012-07-11

Family

ID=43088095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10742122A Withdrawn EP2473776A1 (fr) 2009-08-31 2010-07-27 Signal lumineux

Country Status (6)

Country Link
US (1) US20120162997A1 (fr)
EP (1) EP2473776A1 (fr)
CN (1) CN102483212A (fr)
DE (1) DE102009039704A1 (fr)
RU (1) RU2012112465A (fr)
WO (1) WO2011023479A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011081203A1 (de) * 2011-08-18 2013-02-21 Siemens Aktiengesellschaft Lichtzeichenanlage
WO2014015599A1 (fr) * 2012-07-27 2014-01-30 Zhang Wenhu Lampe à signal de del
CN102767726B (zh) * 2012-07-27 2018-08-24 张文虎 Led信号灯
CN103542307A (zh) * 2013-10-31 2014-01-29 江苏奥雷光电有限公司 一种视频监控补光照明led模块
JP7239804B2 (ja) * 2018-08-31 2023-03-15 日亜化学工業株式会社 レンズ及び発光装置並びにそれらの製造方法
JP6897641B2 (ja) 2018-08-31 2021-07-07 日亜化学工業株式会社 レンズ及び発光装置並びにそれらの製造方法
JP7206475B2 (ja) 2018-08-31 2023-01-18 日亜化学工業株式会社 レンズ及び発光装置並びにそれらの製造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4305585C2 (de) * 1991-08-31 2000-02-24 Hella Kg Hueck & Co Signalleuchte für Kraftfahrzeuge
FR2714186B1 (fr) * 1993-09-06 1997-08-01 Kansei Kk Lentille de transmission de lumière d'une tête laser.
DE10318932A1 (de) * 2003-04-26 2004-11-25 Aqua Signal Aktiengesellschaft Spezialleuchtenfabrik Laterne, vorzugsweise für die Verwendung an Bord von Schiffen, insbesondere auf Sportbooten
JP4293857B2 (ja) * 2003-07-29 2009-07-08 シチズン電子株式会社 フレネルレンズを用いた照明装置
DE10358053A1 (de) * 2003-12-05 2005-07-14 Siemens Ag Lichtsignal
TWM259320U (en) * 2004-07-02 2005-03-11 Hon Hai Prec Ind Co Ltd LED illume device
CN101498422A (zh) * 2008-01-30 2009-08-05 中建国际（深圳）设计顾问有限公司 Led非对称配光灯具
DE102009039703A1 (de) * 2009-08-31 2011-03-17 Siemens Aktiengesellschaft Lichtsignal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011023479A1 *

Also Published As

Publication number Publication date
RU2012112465A (ru) 2013-10-10
CN102483212A (zh) 2012-05-30
WO2011023479A1 (fr) 2011-03-03
DE102009039704A1 (de) 2011-03-17
US20120162997A1 (en) 2012-06-28

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