BE761380A - DEVICE TO REMOVE THE EFFECT OF PARASITE LIGHT IN LIGHT SIGNALS - Google Patents

DEVICE TO REMOVE THE EFFECT OF PARASITE LIGHT IN LIGHT SIGNALS

Info

Publication number
BE761380A
BE761380A BE761380A BE761380A BE761380A BE 761380 A BE761380 A BE 761380A BE 761380 A BE761380 A BE 761380A BE 761380 A BE761380 A BE 761380A BE 761380 A BE761380 A BE 761380A
Authority
BE
Belgium
Prior art keywords
light
remove
effect
parasite
signals
Prior art date
Application number
BE761380A
Other languages
French (fr)
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 BE761380A publication Critical patent/BE761380A/en

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
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Liquid Crystal (AREA)
BE761380A 1970-01-12 1971-01-08 DEVICE TO REMOVE THE EFFECT OF PARASITE LIGHT IN LIGHT SIGNALS BE761380A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702001087 DE2001087C3 (en) 1970-01-12 1970-01-12 Device for eliminating the phantom light effect in light signals

Publications (1)

Publication Number Publication Date
BE761380A true BE761380A (en) 1971-06-16

Family

ID=5759423

Family Applications (1)

Application Number Title Priority Date Filing Date
BE761380A BE761380A (en) 1970-01-12 1971-01-08 DEVICE TO REMOVE THE EFFECT OF PARASITE LIGHT IN LIGHT SIGNALS

Country Status (6)

Country Link
AT (1) AT304311B (en)
BE (1) BE761380A (en)
CH (1) CH521648A (en)
DE (1) DE2001087C3 (en)
FR (1) FR2083023A5 (en)
SE (1) SE358948B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139849A1 (en) * 1981-10-07 1983-04-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Electrical signalling arrangement
DE8812322U1 (en) * 1988-09-29 1988-12-08 Rohrer, Emil, 8901 Königsbrunn Covering lighting equipment on motor vehicles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE559343C (en) 1930-05-16 1932-09-19 Ver Eisenbahn Signalwerke G M Multi-aspect signal
DE740588C (en) 1939-10-12 1943-10-23 Ver Eisenbahn Signalwerke G M Monitoring device for light signal systems with two or more signal aspects controlled by relays

Also Published As

Publication number Publication date
CH521648A (en) 1972-04-15
SE358948B (en) 1973-08-13
FR2083023A5 (en) 1971-12-10
DE2001087B2 (en) 1973-08-30
DE2001087A1 (en) 1971-07-22
AT304311B (en) 1972-12-27
DE2001087C3 (en) 1974-04-04

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: COMMISSARIAT A L'ENERGIE ATOMIQUE

Effective date: 19861231