TWI263362B - LED foot lighting device - Google Patents

LED foot lighting device Download PDF

Info

Publication number
TWI263362B
TWI263362B TW094125228A TW94125228A TWI263362B TW I263362 B TWI263362 B TW I263362B TW 094125228 A TW094125228 A TW 094125228A TW 94125228 A TW94125228 A TW 94125228A TW I263362 B TWI263362 B TW I263362B
Authority
TW
Taiwan
Prior art keywords
light
angle
emitting diode
control panel
emitting
Prior art date
Application number
TW094125228A
Other languages
English (en)
Chinese (zh)
Other versions
TW200618346A (en
Inventor
Hirohisa Okuno
Shinji Kirihata
Katsuhiro Uchisawa
Tomohiro Kamitsu
Kazuyoshi Shima
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Publication of TW200618346A publication Critical patent/TW200618346A/zh
Application granted granted Critical
Publication of TWI263362B publication Critical patent/TWI263362B/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • 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
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • 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
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • 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
    • F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
    • 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]
TW094125228A 2004-11-26 2005-07-26 LED foot lighting device TWI263362B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004342815A JP4501652B2 (ja) 2004-11-26 2004-11-26 足元灯

Publications (2)

Publication Number Publication Date
TW200618346A TW200618346A (en) 2006-06-01
TWI263362B true TWI263362B (en) 2006-10-01

Family

ID=36634082

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094125228A TWI263362B (en) 2004-11-26 2005-07-26 LED foot lighting device

Country Status (4)

Country Link
JP (1) JP4501652B2 (ja)
KR (1) KR100725847B1 (ja)
CN (1) CN100578072C (ja)
TW (1) TWI263362B (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4934549B2 (ja) * 2007-08-28 2012-05-16 パナソニック株式会社 フットライト
TW201005702A (en) * 2008-07-21 2010-02-01 zhi-jian Yan LED display device with high transmittance
JP2012190748A (ja) * 2011-03-14 2012-10-04 Alps Electric Co Ltd 照光装置および前記照光装置を使用した入力装置
KR200468097Y1 (ko) * 2012-08-29 2013-07-29 오정식 조명패널

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0521063Y2 (ja) * 1987-06-12 1993-05-31
JP4045733B2 (ja) * 2000-10-20 2008-02-13 松下電工株式会社 照明階段及び照明階段用照明器具
JP4592049B2 (ja) * 2001-09-12 2010-12-01 シチズン電子株式会社 面状光源ユニット
JP4035998B2 (ja) * 2002-01-23 2008-01-23 オムロン株式会社 面光源装置、拡散板及び液晶表示装置

Also Published As

Publication number Publication date
CN1779317A (zh) 2006-05-31
JP2006156050A (ja) 2006-06-15
KR100725847B1 (ko) 2007-06-08
TW200618346A (en) 2006-06-01
JP4501652B2 (ja) 2010-07-14
KR20060059164A (ko) 2006-06-01
CN100578072C (zh) 2010-01-06

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees