AT304311B - Device for eliminating the phantom light effect in light signals - Google Patents

Device for eliminating the phantom light effect in light signals

Info

Publication number
AT304311B
AT304311B AT1035570A AT1035570A AT304311B AT 304311 B AT304311 B AT 304311B AT 1035570 A AT1035570 A AT 1035570A AT 1035570 A AT1035570 A AT 1035570A AT 304311 B AT304311 B AT 304311B
Authority
AT
Austria
Prior art keywords
eliminating
light
phantom
effect
signals
Prior art date
Application number
AT1035570A
Other languages
German (de)
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
Application granted granted Critical
Publication of AT304311B publication Critical patent/AT304311B/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)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
AT1035570A 1970-01-12 1970-11-17 Device for eliminating the phantom light effect in light signals AT304311B (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
AT304311B true AT304311B (en) 1972-12-27

Family

ID=5759423

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1035570A AT304311B (en) 1970-01-12 1970-11-17 Device for eliminating the phantom light effect 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 (de) * 1988-09-29 1988-12-08 Rohrer, Emil, 8901 Königsbrunn Abdeckung von Beleuchtungseinrichtungen an Kraftfahrzeugen

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
SE358948B (en) 1973-08-13
DE2001087A1 (en) 1971-07-22
FR2083023A5 (en) 1971-12-10
CH521648A (en) 1972-04-15
DE2001087C3 (en) 1974-04-04
BE761380A (en) 1971-06-16
DE2001087B2 (en) 1973-08-30

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee