ZA987324B - Laser-based railroad signal light - Google Patents

Laser-based railroad signal light

Info

Publication number
ZA987324B
ZA987324B ZA987324A ZA987324A ZA987324B ZA 987324 B ZA987324 B ZA 987324B ZA 987324 A ZA987324 A ZA 987324A ZA 987324 A ZA987324 A ZA 987324A ZA 987324 B ZA987324 B ZA 987324B
Authority
ZA
South Africa
Prior art keywords
laser
signal light
railroad signal
based railroad
light
Prior art date
Application number
ZA987324A
Inventor
Joseph T Verdeyen
Ronald W Snee
Original Assignee
Safetran Systems Corp
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 Safetran Systems Corp filed Critical Safetran Systems Corp
Publication of ZA987324B publication Critical patent/ZA987324B/en

Links

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
    • B61L5/1836—Daylight signals using light sources of different colours and separate optical systems
    • 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
    • B61L5/1827—Daylight signals using light sources of different colours and a common optical system

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Optical Communication System (AREA)
ZA987324A 1997-08-18 1998-08-14 Laser-based railroad signal light ZA987324B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91272797A 1997-08-18 1997-08-18

Publications (1)

Publication Number Publication Date
ZA987324B true ZA987324B (en) 1999-02-16

Family

ID=25432338

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA987324A ZA987324B (en) 1997-08-18 1998-08-14 Laser-based railroad signal light

Country Status (5)

Country Link
EP (1) EP0899178A1 (en)
AU (1) AU7184798A (en)
CA (1) CA2243809A1 (en)
HR (1) HRP980428A2 (en)
ZA (1) ZA987324B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6392553B1 (en) 2000-08-22 2002-05-21 Harmon Industries, Inc. Signal interface module
DE102012206614A1 (en) * 2012-04-23 2013-10-24 Siemens Aktiengesellschaft light signal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542220B2 (en) * 1975-09-22 1979-02-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Light signal
SE436223B (en) * 1980-12-16 1984-11-19 Sieverts Kabelverk Ab FIBEROPTIC LAMP
GB9109077D0 (en) * 1991-04-26 1991-06-12 Univ Southampton Lasers
US5563588A (en) * 1994-08-02 1996-10-08 Belfer; Bruce D. Fiber optic traffic signal light system having a shutter control

Also Published As

Publication number Publication date
EP0899178A1 (en) 1999-03-03
HRP980428A2 (en) 1999-06-30
CA2243809A1 (en) 1999-02-18
AU7184798A (en) 1999-02-25

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