WO2002071812A3 - Device to monitor a led traffic light - Google Patents

Device to monitor a led traffic light Download PDF

Info

Publication number
WO2002071812A3
WO2002071812A3 PCT/IB2001/002890 IB0102890W WO02071812A3 WO 2002071812 A3 WO2002071812 A3 WO 2002071812A3 IB 0102890 W IB0102890 W IB 0102890W WO 02071812 A3 WO02071812 A3 WO 02071812A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
led
monitor
led signal
traffic light
Prior art date
Application number
PCT/IB2001/002890
Other languages
French (fr)
Other versions
WO2002071812A2 (en
Inventor
Patrick Martineau
Jean-Simon Bourgault
Eden Dubuc
Original Assignee
Gelcore Llc
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
Priority claimed from US09/756,670 external-priority patent/US6509840B2/en
Application filed by Gelcore Llc filed Critical Gelcore Llc
Priority to EP01273916A priority Critical patent/EP1352544A2/en
Priority to AU2001297694A priority patent/AU2001297694A1/en
Priority to CA002434724A priority patent/CA2434724A1/en
Publication of WO2002071812A2 publication Critical patent/WO2002071812A2/en
Publication of WO2002071812A3 publication Critical patent/WO2002071812A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Traffic Control Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

An LED signal with an LED light pipe collector and intelligent light degradation sensor. The light pipe collector captures LED light normally lost in a generally horizontal direction and redirects it into a generally vertical direction through use of total internal reflection. The light degradation sensor monitors LED signal light output. When light output degrades to a preset level, an electrical circuit triggers a disabling short circuit to deactivate the LED signal.
PCT/IB2001/002890 2001-01-09 2001-12-18 Device to monitor a led traffic light WO2002071812A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP01273916A EP1352544A2 (en) 2001-01-09 2001-12-18 Device to monitor a led traffic lights
AU2001297694A AU2001297694A1 (en) 2001-01-09 2001-12-18 Device to monitor a led traffic light
CA002434724A CA2434724A1 (en) 2001-01-09 2001-12-18 Device to monitor a led traffic light

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09/756,670 2001-01-09
US09/756,670 US6509840B2 (en) 2001-01-10 2001-01-10 Sun phantom led traffic signal
US09/827,429 2001-04-06
US09/827,429 US6717526B2 (en) 2001-01-10 2001-04-06 Light degradation sensing LED signal with light pipe collector

Publications (2)

Publication Number Publication Date
WO2002071812A2 WO2002071812A2 (en) 2002-09-12
WO2002071812A3 true WO2002071812A3 (en) 2003-01-03

Family

ID=27116272

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/002890 WO2002071812A2 (en) 2001-01-09 2001-12-18 Device to monitor a led traffic light

Country Status (4)

Country Link
EP (1) EP1352544A2 (en)
AU (1) AU2001297694A1 (en)
CA (1) CA2434724A1 (en)
WO (1) WO2002071812A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002044614A1 (en) * 2000-11-29 2002-06-06 Zumtobel Staff Gmbh Lamp with a cover panel
FI117178B (en) * 2004-12-23 2006-07-14 Sabik Ab Oy LED lamp for traffic control
DE102008017613B4 (en) 2008-04-04 2010-12-16 Insta Elektro Gmbh light assembly
US8089374B2 (en) * 2008-11-18 2012-01-03 GE Lighting Solutions, LLC LED signal light
KR20100073806A (en) * 2008-12-23 2010-07-01 삼성전자주식회사 Collimate lens assembly
US8465190B2 (en) * 2009-05-22 2013-06-18 Sylvan R. Shemitz Designs Incorporated Total internal reflective (TIR) optic light assembly
DE102010009429A1 (en) * 2010-02-24 2011-08-25 Siemens Aktiengesellschaft, 80333 Symbol Gazette
DE102010009432A1 (en) * 2010-02-24 2011-08-25 Siemens Aktiengesellschaft, 80333 Symbol Gazette
DK2550649T3 (en) 2010-03-24 2014-06-30 Siemens Ag OPTICAL VIEWING ELEMENT AND VIEWING DEVICE
SE535601C2 (en) * 2011-02-24 2012-10-09 Nordic Light Ab Mounting device and lighting system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672145A1 (en) * 1991-01-29 1992-07-31 Electricite De France Device for detecting a fault in a lamp of three-colour lights and traffic control installation including such a device
EP0974947A1 (en) * 1998-07-23 2000-01-26 Siemens Aktiengesellschaft Traffic light apparatus and method to monitor the traffic light apparatus
US6019493A (en) * 1998-03-13 2000-02-01 Kuo; Jeffrey High efficiency light for use in a traffic signal light, using LED's

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672145A1 (en) * 1991-01-29 1992-07-31 Electricite De France Device for detecting a fault in a lamp of three-colour lights and traffic control installation including such a device
US6019493A (en) * 1998-03-13 2000-02-01 Kuo; Jeffrey High efficiency light for use in a traffic signal light, using LED's
EP0974947A1 (en) * 1998-07-23 2000-01-26 Siemens Aktiengesellschaft Traffic light apparatus and method to monitor the traffic light apparatus

Also Published As

Publication number Publication date
WO2002071812A2 (en) 2002-09-12
AU2001297694A1 (en) 2002-09-19
EP1352544A2 (en) 2003-10-15
CA2434724A1 (en) 2002-09-12

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