SE8704785L - OPTICAL-ELECTRICAL SIGNAL ALARM DEVICE - Google Patents

OPTICAL-ELECTRICAL SIGNAL ALARM DEVICE

Info

Publication number
SE8704785L
SE8704785L SE8704785A SE8704785A SE8704785L SE 8704785 L SE8704785 L SE 8704785L SE 8704785 A SE8704785 A SE 8704785A SE 8704785 A SE8704785 A SE 8704785A SE 8704785 L SE8704785 L SE 8704785L
Authority
SE
Sweden
Prior art keywords
light
red
optical
electrical signal
alarm device
Prior art date
Application number
SE8704785A
Other languages
Swedish (sv)
Other versions
SE8704785D0 (en
SE469518B (en
Inventor
Luigi Inganni
Original Assignee
Luigi Inganni
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 Luigi Inganni filed Critical Luigi Inganni
Priority to SE8704785A priority Critical patent/SE469518B/en
Publication of SE8704785D0 publication Critical patent/SE8704785D0/en
Publication of SE8704785L publication Critical patent/SE8704785L/en
Publication of SE469518B publication Critical patent/SE469518B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/06—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling by electromagnetic or particle radiation, e.g. by light beam
    • B61L3/065—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling by electromagnetic or particle radiation, e.g. by light beam controlling optically

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

An optical-electrical signal warning apparatus intended for fitting to, for example, railbound vehicles in order to observe variously coloured light signals, and which apparatus is configured with filters 7,8 or prisms intended to divide and pick up red and green light from a light signal device and to project this light onto light- sensitive cells 5,6 coupled in an electric bridge 12 configured with a sensor 13 for detecting the increase in the quantity of red or green light, in relation to the light of the surroundings, which is received for the light signal device and, should red light be present, for giving warning of this and, where necessary, effecting braking of the vehicle. <IMAGE>
SE8704785A 1987-12-01 1987-12-01 Optical-electrical signal warning apparatus SE469518B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8704785A SE469518B (en) 1987-12-01 1987-12-01 Optical-electrical signal warning apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8704785A SE469518B (en) 1987-12-01 1987-12-01 Optical-electrical signal warning apparatus

Publications (3)

Publication Number Publication Date
SE8704785D0 SE8704785D0 (en) 1987-12-01
SE8704785L true SE8704785L (en) 1989-06-02
SE469518B SE469518B (en) 1993-07-19

Family

ID=20370455

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8704785A SE469518B (en) 1987-12-01 1987-12-01 Optical-electrical signal warning apparatus

Country Status (1)

Country Link
SE (1) SE469518B (en)

Also Published As

Publication number Publication date
SE8704785D0 (en) 1987-12-01
SE469518B (en) 1993-07-19

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