EP1118973A3 - Protector against reflections for traffic lights - Google Patents

Protector against reflections for traffic lights Download PDF

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Publication number
EP1118973A3
EP1118973A3 EP00108612A EP00108612A EP1118973A3 EP 1118973 A3 EP1118973 A3 EP 1118973A3 EP 00108612 A EP00108612 A EP 00108612A EP 00108612 A EP00108612 A EP 00108612A EP 1118973 A3 EP1118973 A3 EP 1118973A3
Authority
EP
European Patent Office
Prior art keywords
signal
reflection
light
traffic lights
switched
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Withdrawn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
EP00108612A
Other languages
German (de)
French (fr)
Other versions
EP1118973A2 (en
Inventor
Michael Stuefer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1118973A2 publication Critical patent/EP1118973A2/en
Publication of EP1118973A3 publication Critical patent/EP1118973A3/en
Withdrawn legal-status Critical Current

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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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/003—Controlling the distribution of the light emitted by adjustment of elements by interposition of elements with electrically controlled variable light transmissivity, e.g. liquid crystal elements or electrochromic devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

Reflexionsschutz für Lichtzeichenanlagen welcher verhindert, daß an ausgeschalteten Signallampen (G, A) Lichtstrahle, welche von außen durch die Abdeckscheiben (4g, 4a) eindringen, durch Reflexion am Reflexionsspiegel (8) und/oder an der, zwecks Lichtbrechung, vorhandenen Lampenoptik nach vorne, in Signalrichtung abgestrahlt werden, indem vor der Lichtquelle (4g, 4a, 4r) und vor dem Reflexionsspiegel (8) eine Verbundscheibe mit elektrochromem Element eingesetzt ist welches elektrisch derart aktivierbar ist, daß an der abgeschalteten Signallampe (G, A) das elektrochrome Element (4e) lichtundurchlässig ist während es an der eingeschalteten Signallampe (R) lichtdurchlässig ist.

Figure 00000001
Reflection protection for light signal systems which prevents light beams on switched-off signal lamps (G, A), which penetrate from the outside through the cover plates (4g, 4a), by reflection on the reflection mirror (8) and / or on the existing lamp optics for the purpose of refraction of light , are emitted in the signal direction by using a composite pane with an electrochromic element in front of the light source (4g, 4a, 4r) and in front of the reflection mirror (8) which can be activated electrically in such a way that the electrochromic element on the deactivated signal lamp (G, A) (4e) is opaque while it is translucent when the signal lamp (R) is switched on.
Figure 00000001
EP00108612A 2000-01-18 2000-04-20 Protector against reflections for traffic lights Withdrawn EP1118973A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBZ20000001 IT1316113B1 (en) 2000-01-18 2000-01-18 DEVICE TO DARKEN THE INACTIVE LAMPS OF A TRAFFIC LIGHT FOR THE SAFE RECOGNITION OF THE LAMP ON.
ITBZ000001 2000-01-18

Publications (2)

Publication Number Publication Date
EP1118973A2 EP1118973A2 (en) 2001-07-25
EP1118973A3 true EP1118973A3 (en) 2002-04-24

Family

ID=11440836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108612A Withdrawn EP1118973A3 (en) 2000-01-18 2000-04-20 Protector against reflections for traffic lights

Country Status (2)

Country Link
EP (1) EP1118973A3 (en)
IT (1) IT1316113B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10063180A1 (en) * 2000-12-18 2002-06-27 Bayer Ag Device for generating light signals
WO2008072194A1 (en) * 2006-12-15 2008-06-19 Koninklijke Philips Electronics N.V. Lighting device and light therapy device associated therewith
DE102009022225A1 (en) * 2009-05-20 2010-11-25 Zumtobel Lighting Gmbh Lighting arrangement with variable light influencing element
DE102011080047A1 (en) * 2011-07-28 2013-01-31 Siemens Aktiengesellschaft light signal
DE102013203124A1 (en) 2013-02-26 2014-08-28 Siemens Aktiengesellschaft Rail vehicle with a tachometer-speed indicator and method for operating such a rail vehicle
DE202015102523U1 (en) * 2015-05-18 2016-08-22 Hanning & Kahl Gmbh & Co. Kg Signaling device for traffic signal systems
DE102018201374B3 (en) * 2018-01-30 2019-03-21 Bayerische Motoren Werke Aktiengesellschaft Absorber device for a traffic light system and absorber device assistance system for a vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887890A (en) * 1986-12-20 1989-12-19 Dornier System Gmbh Controlled transparency
US5412492A (en) * 1991-11-05 1995-05-02 Magnascreen Corporation Electro-optical lens assembly
EP0961156A2 (en) * 1998-05-29 1999-12-01 Bayer Ag Electrochromic device with gel electrolyte and UV-protection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887890A (en) * 1986-12-20 1989-12-19 Dornier System Gmbh Controlled transparency
US5412492A (en) * 1991-11-05 1995-05-02 Magnascreen Corporation Electro-optical lens assembly
EP0961156A2 (en) * 1998-05-29 1999-12-01 Bayer Ag Electrochromic device with gel electrolyte and UV-protection

Also Published As

Publication number Publication date
IT1316113B1 (en) 2003-03-28
ITBZ20000001A1 (en) 2001-07-18
EP1118973A2 (en) 2001-07-25

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