CA2298810A1 - Addressable vehicular lighting system - Google Patents

Addressable vehicular lighting system Download PDF

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Publication number
CA2298810A1
CA2298810A1 CA002298810A CA2298810A CA2298810A1 CA 2298810 A1 CA2298810 A1 CA 2298810A1 CA 002298810 A CA002298810 A CA 002298810A CA 2298810 A CA2298810 A CA 2298810A CA 2298810 A1 CA2298810 A1 CA 2298810A1
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CA
Canada
Prior art keywords
light sources
fiber
vehicle
waveguide
optical
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002298810A
Other languages
French (fr)
Other versions
CA2298810C (en
Inventor
Donald R. Scifres
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Viavi Solutions Inc
Original Assignee
Sdl, Inc.
Donald R. Scifres
Jds Uniphase Corporation
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 Sdl, Inc., Donald R. Scifres, Jds Uniphase Corporation filed Critical Sdl, Inc.
Publication of CA2298810A1 publication Critical patent/CA2298810A1/en
Application granted granted Critical
Publication of CA2298810C publication Critical patent/CA2298810C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0011—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor with light guides for distributing the light between several lighting or signalling devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Landscapes

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

Abstract

A vehicle (10) with a plurality of individually addressable light sources (25), preferably semiconductor laser light sources or light emitting diodes, each of which produces a beam of light, are optically coupled to a fiber optic waveguide (28a, 28b, 29a, 29b, 30a, 30b). The laser light sources (25) are grouped together preferably at a single location within the vehicle for easy access and conveniently located within the vehicle. Fiber waveguides waveguide (28a, 28b, 29a, 29b, 30a, 30b) distally transmit the beams to the optical loads of the vehicle, including the brake lights (13), taillights (12), instrumentation lights (17) and tum signals (15). Each fiber optic waveguide (28a, 28b, 29a, 29b, 30a, 30b) may be a single optical fiber, such as a multimode fiber, having a numerical aperture large enough to receive illumination from a plurality of light sources. In cases where some optical loads require a larger flux or brightness of light, such as vehicular headlights (16), which may be greater than a single optic fiber can transmit, the waveguide may comprise a bundle of optical fibers. Multiple light sources to a single optical output load allows switching to another operational light source or increase the intensity of remaining light sources should one light source fail.

In this manner, the operational life of the vehicular lighting system is increased. Also disclosed is circuitry for operating applications of the system as well as illustrating the employment of color wavelength laser light sources.
CA002298810A 1997-07-29 1998-07-23 Addressable vehicular lighting system Expired - Fee Related CA2298810C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/902,741 US6152588A (en) 1994-09-28 1997-07-29 Addressable vehicular lighting system
US08/902,741 1997-07-29
PCT/US1998/015585 WO1999006760A1 (en) 1997-07-29 1998-07-23 Addressable vehicular lighting system

Publications (2)

Publication Number Publication Date
CA2298810A1 true CA2298810A1 (en) 1999-02-11
CA2298810C CA2298810C (en) 2004-02-10

Family

ID=25416341

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002298810A Expired - Fee Related CA2298810C (en) 1997-07-29 1998-07-23 Addressable vehicular lighting system

Country Status (5)

Country Link
US (2) US6152588A (en)
EP (2) EP1000297B1 (en)
CA (1) CA2298810C (en)
DE (1) DE69805626T2 (en)
WO (1) WO1999006760A1 (en)

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Also Published As

Publication number Publication date
US6491420B1 (en) 2002-12-10
EP1000297B1 (en) 2002-05-29
CA2298810C (en) 2004-02-10
WO1999006760A1 (en) 1999-02-11
US6152588A (en) 2000-11-28
DE69805626D1 (en) 2002-07-04
DE69805626T2 (en) 2002-09-19
EP1108949A1 (en) 2001-06-20
EP1000297A1 (en) 2000-05-17

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