JP5819723B2 - 傾斜した光源を備える中空のバックライト - Google Patents
傾斜した光源を備える中空のバックライト Download PDFInfo
- Publication number
- JP5819723B2 JP5819723B2 JP2011512563A JP2011512563A JP5819723B2 JP 5819723 B2 JP5819723 B2 JP 5819723B2 JP 2011512563 A JP2011512563 A JP 2011512563A JP 2011512563 A JP2011512563 A JP 2011512563A JP 5819723 B2 JP5819723 B2 JP 5819723B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- reflector
- light source
- backlight
- collimator
- 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.)
- Expired - Fee Related
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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
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
Description
Claims (3)
- バックライトであって、
中空の光キャビティを形成するために配置された前方反射体及び後方反射体と、
前記前方反射体の1つの端部に近接する第1の光源であって、前記前方反射体の平面に対する接線に平行な線と、前記第1の光源の開口面に垂直かつ開口面を二分する線との交点によって規定される45°〜90°の傾斜角を有する第1の光源と、
前記第1の光源からの光を前記中空の光キャビティ内に向けるための、第1の非対称な光コリメータであって、前記第1の光源の前記開口面から、前記第1の光コリメータに対する接線が水平である前記後方反射体上の点まで延びる湾曲を有する第1の光コリメータとを含み、
前記後方反射体が、15°未満の分散角度を有する半鏡面材料を含む、バックライト。 - 前記前方反射体のもう一方の端部に近接する第2の光源であって、前記前方反射体の平面に対する接線に平行な線と、前記第2の光源の開口面に垂直かつ開口面を二分する線との交点によって規定される45°〜90°の傾斜角を有する第2の光源と、
前記第2の光源からの光を前記中空の光キャビティ内に向けるための第2の非対称な光コリメータであって、前記第2の光源の前記開口面から、前記第2の光コリメータに対する接線が水平である前記後方反射体上の点まで延びる湾曲を有する第2の光コリメータとを更に含む、請求項1に記載のバックライト。 - 前記非対称な光コリメータが放物線状である、請求項1に記載のバックライト。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5878008P | 2008-06-04 | 2008-06-04 | |
US61/058,780 | 2008-06-04 | ||
PCT/US2009/045832 WO2009149010A1 (en) | 2008-06-04 | 2009-06-01 | Hollow backlight with tilted light source |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011523177A JP2011523177A (ja) | 2011-08-04 |
JP2011523177A5 JP2011523177A5 (ja) | 2012-07-19 |
JP5819723B2 true JP5819723B2 (ja) | 2015-11-24 |
Family
ID=40909995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011512563A Expired - Fee Related JP5819723B2 (ja) | 2008-06-04 | 2009-06-01 | 傾斜した光源を備える中空のバックライト |
Country Status (7)
Country | Link |
---|---|
US (1) | US8757858B2 (ja) |
EP (1) | EP2297607B1 (ja) |
JP (1) | JP5819723B2 (ja) |
KR (1) | KR20110019388A (ja) |
CN (1) | CN102057319B (ja) |
TW (1) | TW201003248A (ja) |
WO (1) | WO2009149010A1 (ja) |
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-
2009
- 2009-06-01 EP EP09759171.3A patent/EP2297607B1/en not_active Not-in-force
- 2009-06-01 CN CN200980120873.3A patent/CN102057319B/zh not_active Expired - Fee Related
- 2009-06-01 JP JP2011512563A patent/JP5819723B2/ja not_active Expired - Fee Related
- 2009-06-01 KR KR1020107029480A patent/KR20110019388A/ko not_active Application Discontinuation
- 2009-06-01 US US12/995,368 patent/US8757858B2/en not_active Expired - Fee Related
- 2009-06-01 WO PCT/US2009/045832 patent/WO2009149010A1/en active Application Filing
- 2009-06-03 TW TW098118441A patent/TW201003248A/zh unknown
Also Published As
Publication number | Publication date |
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EP2297607B1 (en) | 2014-04-23 |
US20110134659A1 (en) | 2011-06-09 |
CN102057319A (zh) | 2011-05-11 |
WO2009149010A1 (en) | 2009-12-10 |
EP2297607A1 (en) | 2011-03-23 |
CN102057319B (zh) | 2014-02-26 |
KR20110019388A (ko) | 2011-02-25 |
JP2011523177A (ja) | 2011-08-04 |
TW201003248A (en) | 2010-01-16 |
US8757858B2 (en) | 2014-06-24 |
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