SE8603039D0 - FOR TRAFFIC LIGHT OR OTHER SIMILAR SIGNAL LIGHTING DEVICES FOR ELECTRIC LAMP UNIT - Google Patents

FOR TRAFFIC LIGHT OR OTHER SIMILAR SIGNAL LIGHTING DEVICES FOR ELECTRIC LAMP UNIT

Info

Publication number
SE8603039D0
SE8603039D0 SE8603039A SE8603039A SE8603039D0 SE 8603039 D0 SE8603039 D0 SE 8603039D0 SE 8603039 A SE8603039 A SE 8603039A SE 8603039 A SE8603039 A SE 8603039A SE 8603039 D0 SE8603039 D0 SE 8603039D0
Authority
SE
Sweden
Prior art keywords
light
lamp unit
traffic light
lighting devices
electric lamp
Prior art date
Application number
SE8603039A
Other languages
Swedish (sv)
Other versions
SE458240B (en
Original Assignee
Nystrom Karl G
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 Nystrom Karl G filed Critical Nystrom Karl G
Priority to SE8603039A priority Critical patent/SE458240B/en
Publication of SE8603039D0 publication Critical patent/SE8603039D0/en
Priority to DE19873722578 priority patent/DE3722578A1/en
Publication of SE458240B publication Critical patent/SE458240B/en

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

A lamp unit (10) which can be used, in particular, with traffic lights has a light source consisting of a large number of light-emitting diodes (13). All light-emitting diodes (13) generate a light of at least approximately uniform colour and form a light-emitting surface (14) of considerable extent in two directions which run perpendicular to each other. In order to make it easier for a person having defective colour vision to discriminate between the light generated by the lamp unit and light originating from other lamp units and to enable identification of the lamp unit (10), the light-emitting diodes (13) are configured in such a manner that when the lamp unit (10) is operated the character of the light emitted by each individual light-emitting diode (13) strongly varies between different parts (14A, 14B) of the said light-emitting surface (14). <IMAGE>
SE8603039A 1986-07-08 1986-07-08 BEFORE TRAFFIC LIGHT DEDICATED ELECTRIC LAMP UNIT, SHOWING A BRIGHTNESS WHICH CONSISTS OF A LARGE NUMBER OF LEDS SE458240B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE8603039A SE458240B (en) 1986-07-08 1986-07-08 BEFORE TRAFFIC LIGHT DEDICATED ELECTRIC LAMP UNIT, SHOWING A BRIGHTNESS WHICH CONSISTS OF A LARGE NUMBER OF LEDS
DE19873722578 DE3722578A1 (en) 1986-07-08 1987-07-08 Electrical lamp unit for traffic lights or other similar light signal devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8603039A SE458240B (en) 1986-07-08 1986-07-08 BEFORE TRAFFIC LIGHT DEDICATED ELECTRIC LAMP UNIT, SHOWING A BRIGHTNESS WHICH CONSISTS OF A LARGE NUMBER OF LEDS

Publications (2)

Publication Number Publication Date
SE8603039D0 true SE8603039D0 (en) 1986-07-08
SE458240B SE458240B (en) 1989-03-06

Family

ID=20365069

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8603039A SE458240B (en) 1986-07-08 1986-07-08 BEFORE TRAFFIC LIGHT DEDICATED ELECTRIC LAMP UNIT, SHOWING A BRIGHTNESS WHICH CONSISTS OF A LARGE NUMBER OF LEDS

Country Status (2)

Country Link
DE (1) DE3722578A1 (en)
SE (1) SE458240B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2078839A1 (en) * 1991-09-25 1993-03-26 Marc Hoffman Double refraction and total reflection solid nonimaging lens
EP0713999A1 (en) * 1994-11-24 1996-05-29 Siemens Integra Verkehrstechnik Ag Colour-light signal using LEDs
ATE229155T1 (en) * 1996-10-16 2002-12-15 Koninkl Philips Electronics Nv SIGNAL LAMP WITH LEDS
US6570505B1 (en) 1997-12-30 2003-05-27 Gelcore Llc LED lamp with a fault-indicating impedance-changing circuit
FR2783592B1 (en) * 1998-09-18 2001-02-23 Michel Lahire ROAD SIGNAL LIGHTS OR OTHER SUITABLE FOR DALTONIANS
US6054932A (en) * 1998-11-20 2000-04-25 Gartner; William J. LED traffic light and method manufacture and use thereof
US7859430B2 (en) * 2005-12-14 2010-12-28 Nakamura Sangyo Gakuen LED road traffic signal light

Also Published As

Publication number Publication date
SE458240B (en) 1989-03-06
DE3722578A1 (en) 1988-01-21

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