EP2473777B1 - Lichtsignal - Google Patents

Lichtsignal Download PDF

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Publication number
EP2473777B1
EP2473777B1 EP10739567.5A EP10739567A EP2473777B1 EP 2473777 B1 EP2473777 B1 EP 2473777B1 EP 10739567 A EP10739567 A EP 10739567A EP 2473777 B1 EP2473777 B1 EP 2473777B1
Authority
EP
European Patent Office
Prior art keywords
light source
signal
hled
light
color filter
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.)
Active
Application number
EP10739567.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2473777A1 (de
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 Mobility GmbH
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 EP2473777A1 publication Critical patent/EP2473777A1/de
Application granted granted Critical
Publication of EP2473777B1 publication Critical patent/EP2473777B1/de
Active legal-status Critical Current
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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • 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
    • B61L5/1818—Daylight signals using mobile coloured screen
    • 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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/007—Lighting devices or systems producing a varying lighting effect using rotating transparent or colored disks, e.g. gobo wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/006—Controlling the distribution of the light emitted by adjustment of elements by means of optical elements, e.g. films, filters or screens, being rolled up around a roller
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • 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
    • 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
    • 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
    • F21Y2101/00—Point-like light sources
    • 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 with semiconductor light source and collection optics for the representation of signal terms, especially in rail-bound traffic routes.
  • FIG. 1 schematically illustrated light signals of known type is used as a light source either a filament arrangement of an incandescent lamp 1 or a semiconductor light source 2.
  • the filament light signal consists essentially of the incandescent lamp 1 and an optical system with full lens 3 or step lens 4 and a color filter glass 5 for the realization of the usual signal colors, in particular red, green and yellow.
  • Such a light bulb assembly is known from US 4,754,272 A known, by means of Umlenaptn the incandescent lamp / color filter arrangement of the respective driving concept is reflected in the beam path of the single optical system.
  • the semiconductor light sources 2 for example LEDs - light emitting diodes - the light is generated by electrical excitation of a semiconductor.
  • Semiconductor light sources 2 have a completely different emission characteristic than incandescent lamps 1, so that as a rule the complete optical system has to be replaced by an LED-specific lens matrix 6.
  • LEDs 7 and opteless LEDs 7.1 must be designed as monochrome LEDs with narrow color locus limits in order to permanently generate the signal-specific light color. In addition to color fidelity, a minimum axis light intensity must also be achieved.
  • the problem with monochrome LEDs 7, 7.1 is beyond the necessary availability, the storage of a plurality of LED types and their manufacturer dependence. In addition, the LED lighting for the same brightness is color-dependent, so that signal generators with different driver modules are required. The safety proofs for signalers are therefore very expensive.
  • the invention has for its object to simplify a light signal of the generic type, in particular, the variety of types of necessary semiconductor light sources is to be reduced.
  • the object is achieved in that the semiconductor light source is designed as a white point light source, wherein the signal terms a common point light source with a single white HLED and a common collection optics is associated with an automatic change is provided for positioning signal term specific color filter in the aperture region of the point light source and wherein the color filters are provided between the HLED and the collection optics.
  • monochrome semiconductor light sources By reducing to a point light source of the white light type, monochrome semiconductor light sources become unnecessary. In addition to the independence of individual manufacturers results in a significant cost reduction through component reduction in the driver modules. Also advantageous is the expected uniform lifetime of the white point light source, while monochrome semiconductor light sources have very different lifetimes depending on the required current to achieve the minimum axis light intensity.
  • the automatic color filter change function for several signal terms achieves component and size reduction.
  • very inexpensive polycarbonate color filter sheets can be used according to claim 2. These color films are used very frequently in the field of photography.
  • polycarbonate color filter sheets are particularly resistant to temperature and long-term stability, with individual color or more combined color films can produce almost any desired color location in the radiation when using the HLED white light source.
  • the filter films to be used are only dependent on the spectral composition of the Achslichtanteils and can be determined and optimized very accurately according to the spectral properties of the filter films.
  • the transmittance of the color filter sheets is comparable with the transmittance of corresponding color glass panes, which are used in incandescent light sources.
  • FIG. 2 A single white HLED high current LED 8 is used as a point light source. This is arranged on a circuit board 9 with heat sink 10. To realize different signal colors, a color filter sheet arrangement 12 is provided between the HLED and a collecting optics 11.
  • FIG. 3 1 shows on the left an emission spectrum 13 of the white HLED 8.
  • This HLED 8 is combined with the color filter sheet arrangement 12, which consists of two color filter sheets with the transmission spectra 14 and 15. It can be seen that the resulting total spectrum 16 has a high degree of transmittance for the color locus yellow, so that a yellow-emitting light signal is produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)
  • Led Devices (AREA)
EP10739567.5A 2009-08-31 2010-07-27 Lichtsignal Active EP2473777B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009039703A DE102009039703A1 (de) 2009-08-31 2009-08-31 Lichtsignal
PCT/EP2010/060887 WO2011023480A1 (de) 2009-08-31 2010-07-27 Lichtsignal

Publications (2)

Publication Number Publication Date
EP2473777A1 EP2473777A1 (de) 2012-07-11
EP2473777B1 true EP2473777B1 (de) 2018-01-17

Family

ID=43027440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10739567.5A Active EP2473777B1 (de) 2009-08-31 2010-07-27 Lichtsignal

Country Status (6)

Country Link
US (1) US8702282B2 (ru)
EP (1) EP2473777B1 (ru)
CN (1) CN102483217A (ru)
DE (1) DE102009039703A1 (ru)
RU (1) RU2543402C2 (ru)
WO (1) WO2011023480A1 (ru)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009039704A1 (de) * 2009-08-31 2011-03-17 Siemens Aktiengesellschaft Lichtsignal
WO2014015599A1 (zh) * 2012-07-27 2014-01-30 Zhang Wenhu Led信号灯
US9978270B2 (en) 2014-07-28 2018-05-22 Econolite Group, Inc. Self-configuring traffic signal controller
CN105788317B (zh) * 2014-12-11 2018-07-24 江苏永电太阳能照明有限公司 太阳能交通灯

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4430659A (en) 1981-02-13 1984-02-07 Minnesota Mining And Manufacturing Company Protuberant optical recording medium
US4754272A (en) * 1986-09-18 1988-06-28 General Signal Corporation Three aspect signalling device using no moving parts
US5697584A (en) 1995-07-27 1997-12-16 Union Switch & Signal Inc. Railroad searchlight signal with solid state illuminant and aspect indication
JPH10319858A (ja) * 1997-05-20 1998-12-04 Fujitsu General Ltd Ｐｄｐ用光学フィルタ
CN2340659Y (zh) 1997-09-11 1999-09-29 汪明成 铁路机车信号白色发光二极管显示灯
EP1329759A4 (en) * 2000-08-30 2005-05-25 Japan Science & Tech Agency SYSTEM FOR PRESENTING 3D IMAGES
DE20210321U1 (de) 2002-07-04 2003-11-06 Hanning & Kahl GmbH & Co. KG, 33813 Oerlinghausen LED-Signalgeber
JP3813144B2 (ja) * 2003-09-12 2006-08-23 ローム株式会社 発光制御回路
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
JP4804058B2 (ja) * 2005-07-28 2011-10-26 キヤノン株式会社 干渉測定装置
TW200739000A (en) * 2006-04-06 2007-10-16 Coretronic Corp Plane light source apparatus
US7553044B2 (en) 2006-05-25 2009-06-30 Ansaldo Sts Usa, Inc. Light emitting diode signaling device and method of providing an indication using the same
CN201066539Y (zh) 2007-06-08 2008-05-28 楼满娥 便于散热的大功率led交通信号灯

Also Published As

Publication number Publication date
EP2473777A1 (de) 2012-07-11
CN102483217A (zh) 2012-05-30
US20120153314A1 (en) 2012-06-21
RU2012112515A (ru) 2013-10-10
RU2543402C2 (ru) 2015-02-27
DE102009039703A1 (de) 2011-03-17
WO2011023480A1 (de) 2011-03-03
US8702282B2 (en) 2014-04-22

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