CA2401370A1 - Illumination device - Google Patents

Illumination device Download PDF

Info

Publication number
CA2401370A1
CA2401370A1 CA002401370A CA2401370A CA2401370A1 CA 2401370 A1 CA2401370 A1 CA 2401370A1 CA 002401370 A CA002401370 A CA 002401370A CA 2401370 A CA2401370 A CA 2401370A CA 2401370 A1 CA2401370 A1 CA 2401370A1
Authority
CA
Canada
Prior art keywords
illumination device
light guide
cylindrical wall
light
reflect
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
CA002401370A
Other languages
French (fr)
Other versions
CA2401370C (en
Inventor
Joseph A. Hoffman
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Company
Joseph A. Hoffman
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 3M Innovative Properties Company, Joseph A. Hoffman filed Critical 3M Innovative Properties Company
Publication of CA2401370A1 publication Critical patent/CA2401370A1/en
Application granted granted Critical
Publication of CA2401370C publication Critical patent/CA2401370C/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
    • F21S8/037—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade for mounting in a corner, i.e. between adjacent walls or wall and ceiling
    • 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
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • G02B6/0096—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the lights guides being of the hollow type
    • 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
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/40—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of hollow light guides
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • 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
    • F21Y2113/00—Combination of light sources
    • 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]

Abstract

An illumination device including a light guide (22) surrounded by a protective sleeve (24). The light guide (22) is hollow and includes a cylindrical wall (26) having a structured outer surface (28) and a smooth inner surface (30). Release structures are provided to reflect or refract light through the cylindrical wall (26) of the light guide (22).
CA002401370A 2000-03-16 2000-07-25 Illumination device Expired - Fee Related CA2401370C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/526,610 US6612729B1 (en) 2000-03-16 2000-03-16 Illumination device
US09/526,610 2000-03-16
PCT/US2000/020156 WO2001071247A1 (en) 2000-03-16 2000-07-25 Illumination device

Publications (2)

Publication Number Publication Date
CA2401370A1 true CA2401370A1 (en) 2001-09-27
CA2401370C CA2401370C (en) 2008-12-23

Family

ID=24098032

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002401370A Expired - Fee Related CA2401370C (en) 2000-03-16 2000-07-25 Illumination device

Country Status (12)

Country Link
US (1) US6612729B1 (en)
EP (2) EP1895230B1 (en)
JP (1) JP4541628B2 (en)
KR (2) KR100813703B1 (en)
CN (1) CN1231697C (en)
AT (1) ATE384227T1 (en)
AU (1) AU2000263703A1 (en)
BR (1) BR0017161A (en)
CA (1) CA2401370C (en)
DE (2) DE60045140D1 (en)
TW (1) TW527480B (en)
WO (1) WO2001071247A1 (en)

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Also Published As

Publication number Publication date
DE60037835T2 (en) 2009-01-08
DE60037835D1 (en) 2008-03-06
EP1264133A1 (en) 2002-12-11
CN1231697C (en) 2005-12-14
KR100853161B1 (en) 2008-08-20
EP1895230B1 (en) 2010-10-20
US6612729B1 (en) 2003-09-02
CA2401370C (en) 2008-12-23
TW527480B (en) 2003-04-11
BR0017161A (en) 2002-12-17
KR20020084191A (en) 2002-11-04
KR20070088792A (en) 2007-08-29
ATE384227T1 (en) 2008-02-15
EP1895230A3 (en) 2008-07-30
CN1451087A (en) 2003-10-22
JP4541628B2 (en) 2010-09-08
KR100813703B1 (en) 2008-03-13
EP1264133B1 (en) 2008-01-16
EP1895230A2 (en) 2008-03-05
AU2000263703A1 (en) 2001-10-03
JP2003528425A (en) 2003-09-24
WO2001071247A1 (en) 2001-09-27
DE60045140D1 (en) 2010-12-02

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Effective date: 20190725