EP1538059A1 - Signal lumineux - Google Patents

Signal lumineux Download PDF

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Publication number
EP1538059A1
EP1538059A1 EP04090427A EP04090427A EP1538059A1 EP 1538059 A1 EP1538059 A1 EP 1538059A1 EP 04090427 A EP04090427 A EP 04090427A EP 04090427 A EP04090427 A EP 04090427A EP 1538059 A1 EP1538059 A1 EP 1538059A1
Authority
EP
European Patent Office
Prior art keywords
optical system
led
light
light signal
focal point
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.)
Granted
Application number
EP04090427A
Other languages
German (de)
English (en)
Other versions
EP1538059B1 (fr
Inventor
Jörg Liebscher
Dirk Zimmermann
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
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 filed Critical Siemens AG
Publication of EP1538059A1 publication Critical patent/EP1538059A1/fr
Application granted granted Critical
Publication of EP1538059B1 publication Critical patent/EP1538059B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B61L5/1845—Optical systems, lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • 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
    • 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]

Definitions

  • the invention relates to a light signal according to the preamble of claim 1.
  • in known light signals is predominant as the light source used an incandescent lamp whose light is emitted by means of an optical System is directed in a defined solid angle.
  • the Optical system usually includes Fresnel lenses or aspherical lenses, in their light entry side focal point the filament of the incandescent lamp is arranged.
  • novel illuminants especially on the basis of LED (light emitting diodes) arises increasingly the need to use incandescent bulbs through more modern bulbs replace.
  • the main problem here is the optical adaptation, because the existing optical system on the special Radiation characteristic of the bulb is tuned.
  • the invention is therefore based on the object, a light signal of the generic type indicate that for bulbs different kind of reuse of existing optical system allows.
  • the task with the characterizing Characteristics of claim 1 solved.
  • a second optical system which is an image of the illuminant in the light entry side focal point of the existing generated optical system, the possibility arises that Signal housing with bundling optics without loss of quality continue to be used with regard to the solid angle to be illuminated. It is only necessary to have a large part of the amount of light emitted by the new illuminant to one Focal point to focus with the focus of the first optical system coincides.
  • This second optical system can be a simple condensing lens or even a Fresnel plate be, to which no special quality requirements have to be asked.
  • the high quality first optical System ensures the optimal illumination of the for Visibility of the signal concept, in particular by the operating personnel the rail-bound transport, authoritative Solid angle. Particularly advantageous is the reusability the first optical system in the suitability of the same for long-range and short-range display of signal terms, d. H. in the presence of a special optics, for example, at the bottom of the first optical system, for light scattering down, d. H. in the direction of the ground.
  • the new light source is an LED array.
  • luminous signs or light signals so far equipped with incandescent lamps, based on LED be re-equipped, since LED comparatively inexpensive, durable and are bright.
  • Known LED light signals exist essentially of a grid-like arrangement of several LED, each equipped with a reflector, wherein a light-bundling optical element and optionally a windscreen are provided.
  • the optical element must as possible for different mounting and Observation points, curve radii of the railway track and detection distances be suitable.
  • This second optical system serving for adaptation can be relatively simple, since only the Light must be focused in one focus and no Consideration of near and far range, curve radii and other parameters is required.
  • the LED arrangement according to claim 2 can according to claim 3 a single LED with focusing lens, which is the second optical system forms.
  • an LED matrix for forming a given radiating surface with several LED modules be equipped.
  • each module contains a specific one Number of individual LEDs connected in such a way that a security concept regarding LED failure feasible is.
  • each LED module with its own optical element be equipped.
  • the totality of the optical elements All LED modules of the LED matrix then form the inventive second optical system.
  • the LED modules including optical elements are preferably housed in a housing which in sealing the vicinity of the light exit surface in a matrix plate is used.
  • the LED can, for example, accordingly the modules arranged in groups on a circuit board be and be energized together. Further constructive measures can take into account the operating parameters of LED, for example, with regard to the temperature, provided be.
  • An optimum in terms of light output, utilization and service life is at an operating state slightly below the recommended values. Under such conditions improves - in contrast to the incandescent lamp - the relative light output, d. H. the brightness of each power unit used.
  • Figure 1 is the principle of operation of a light bulb signal illustrated in the prior art.
  • the filament 1 an incandescent lamp 2 is at the focal point of an optical Systems 3 of the focal length f1 arranged.
  • Characteristic of the filament 1 is a radiation cone 4, whose opening angle the diameter and the optical axis 5 of the optical Systems 3 determines.
  • the optical system 3 is usually calculated for Fresnel and / or aspherical lens shape such that has a high light intensity for the long range and for the obliquely down close range yields, where site-specific parameters, such as the track radius at the site are.
  • a second optical system 6 in the form of a focusing lens provided, as shown in Figure 2 can be seen.
  • the light of an LED matrix 7, which is equipped with multiple LED 8 is through this second optical system 6 of the focal length f2 to a Focused focus 9, with the focus of the first optical system 3 and thus with the glow plug layer in FIG 1 matches.
  • the invention is not limited to the above Embodiment. Rather, it is a number of variants conceivable, which also with fundamentally different kind Execution of the features of the invention make use.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Traffic Control Systems (AREA)
  • Details Of Television Scanning (AREA)
  • Silicon Polymers (AREA)
  • Cookers (AREA)
EP04090427A 2003-12-05 2004-11-09 Signal lumineux Not-in-force EP1538059B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10358053 2003-12-05
DE10358053A DE10358053A1 (de) 2003-12-05 2003-12-05 Lichtsignal

Publications (2)

Publication Number Publication Date
EP1538059A1 true EP1538059A1 (fr) 2005-06-08
EP1538059B1 EP1538059B1 (fr) 2006-07-26

Family

ID=34442516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04090427A Not-in-force EP1538059B1 (fr) 2003-12-05 2004-11-09 Signal lumineux

Country Status (5)

Country Link
US (1) US20050122719A1 (fr)
EP (1) EP1538059B1 (fr)
CN (1) CN1624376A (fr)
AT (1) ATE334031T1 (fr)
DE (2) DE10358053A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011023479A1 (fr) * 2009-08-31 2011-03-03 Siemens Aktiengesellschaft Signal lumineux
EP2202458A3 (fr) * 2008-12-26 2011-09-07 Phoenix Electric Co., Ltd. Dispositif électroluminescent
WO2011157597A1 (fr) * 2010-06-16 2011-12-22 Siemens Aktiengesellschaft Signal lumineux
EP2163455A3 (fr) * 2008-09-15 2015-04-15 Siemens Aktiengesellschaft Signal lumineux

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008022344A1 (de) 2008-04-30 2009-11-05 Siemens Aktiengesellschaft Lichtsignal
DE102008022346A1 (de) 2008-04-30 2009-11-05 Siemens Aktiengesellschaft Lichtsignal
DE102008061556A1 (de) * 2008-12-11 2009-09-24 Daimler Ag Beleuchtungseinrichtung für ein Fahrzeug
DE102009039703A1 (de) * 2009-08-31 2011-03-17 Siemens Aktiengesellschaft Lichtsignal
DE202010002125U1 (de) * 2010-02-10 2011-08-30 Zumtobel Lighting Gmbh Anordnung zur Lichtabgabe mit punktförmigen Lichtquellen und Reflektor
GB2495120B (en) * 2011-09-29 2015-11-18 Howells Group Plc Railway light signals
DE102011054233B4 (de) * 2011-10-06 2019-06-19 HELLA GmbH & Co. KGaA Transformationsoptikanordnung
DE102015200246A1 (de) 2015-01-12 2016-07-14 Siemens Aktiengesellschaft Lichtsignal
CN114333334B (zh) * 2022-03-11 2022-05-17 南京企朋软件技术有限公司 一种道路自动监测方法、***和网络侧服务端

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6019493A (en) * 1998-03-13 2000-02-01 Kuo; Jeffrey High efficiency light for use in a traffic signal light, using LED's
US6249375B1 (en) * 1998-01-19 2001-06-19 Swarco Futurit Verkehrssignal Systeme Ges M.B.H. Optical element for traffic signs, display panels or the like
EP1457945A1 (fr) * 2003-01-22 2004-09-15 CEO Centro di Eccellenza Optronica Mémoire magnétique à accès aléatoire à haute sélectivité

Family Cites Families (15)

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US2787935A (en) * 1946-09-30 1957-04-09 Nippon Kogaku Kk Optical projection condensing lens system of variable magnification of the cross section of the light ray bundle
DE3226580A1 (de) * 1981-12-08 1983-06-16 Robert Bosch Gmbh, 7000 Stuttgart Scheinwerfer fuer kraftfahrzeuge
US4770518A (en) * 1987-04-08 1988-09-13 Cambridge Instruments Inc. Apparatus for indicating intensity of an illuminator in an optical instrument
JP2870790B2 (ja) * 1989-03-17 1999-03-17 ミノルタ株式会社 マイクロリーダプリンタの照明系
KR19980028035A (ko) * 1995-10-25 1998-07-15 윌리엄 이. 힐러 하드 카피 장치용 조명 시스템
KR100449129B1 (ko) * 1995-10-25 2005-01-24 인스트루먼츠 인코포레이티드 텍사스 조사시스템
US5833355A (en) * 1996-12-06 1998-11-10 Dialight Corporation Led illuminated lamp assembly
ATE236821T1 (de) * 1997-09-04 2003-04-15 Howells Railway Products Ltd Verkehrslichtsignal mit mehreren leuchtdioden
US6106137A (en) * 1998-02-20 2000-08-22 Lorin Industries, Inc. Reflector for automotive exterior lighting
US6722771B1 (en) * 1999-05-18 2004-04-20 Eugene Stephens Hand held traffic control light
DE10046840A1 (de) * 2000-09-20 2002-07-04 Goodrich Hella Aerospace Ls Leseleuchte für einen Fahrzeuginnenraum
US6789928B2 (en) * 2001-11-13 2004-09-14 Mohammed John Fitzgerald Khan Automatic mechetronic wheel light device
KR100450815B1 (ko) * 2002-02-01 2004-10-01 삼성전자주식회사 조명계 및 이를 채용한 프로젝션 디스플레이 장치
US6911915B2 (en) * 2002-09-04 2005-06-28 Leotek Electronics Corporation Compact light emitting diode retrofit lamp and method for traffic signal lights
JP4040955B2 (ja) * 2002-11-06 2008-01-30 株式会社小糸製作所 車両用前照灯及びその製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6249375B1 (en) * 1998-01-19 2001-06-19 Swarco Futurit Verkehrssignal Systeme Ges M.B.H. Optical element for traffic signs, display panels or the like
US6019493A (en) * 1998-03-13 2000-02-01 Kuo; Jeffrey High efficiency light for use in a traffic signal light, using LED's
EP1457945A1 (fr) * 2003-01-22 2004-09-15 CEO Centro di Eccellenza Optronica Mémoire magnétique à accès aléatoire à haute sélectivité

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2163455A3 (fr) * 2008-09-15 2015-04-15 Siemens Aktiengesellschaft Signal lumineux
EP2202458A3 (fr) * 2008-12-26 2011-09-07 Phoenix Electric Co., Ltd. Dispositif électroluminescent
US8067881B2 (en) 2008-12-26 2011-11-29 Phoenix Electric Co. Ltd. Light emitting device
WO2011023479A1 (fr) * 2009-08-31 2011-03-03 Siemens Aktiengesellschaft Signal lumineux
WO2011157597A1 (fr) * 2010-06-16 2011-12-22 Siemens Aktiengesellschaft Signal lumineux

Also Published As

Publication number Publication date
US20050122719A1 (en) 2005-06-09
DE502004001032D1 (de) 2006-09-07
EP1538059B1 (fr) 2006-07-26
ATE334031T1 (de) 2006-08-15
CN1624376A (zh) 2005-06-08
DE10358053A1 (de) 2005-07-14

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