JP2013502588A - タッチセンサー式及び物体センサー式ディスプレイのための照明 - Google Patents
タッチセンサー式及び物体センサー式ディスプレイのための照明 Download PDFInfo
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- G—PHYSICS
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- 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
- G02F1/35—Non-linear optics
- G02F1/39—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves
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- 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
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
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- 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
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- G02F1/13338—Input devices, e.g. touch panels
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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Abstract
Description
そのような方法で、導光路の出口面にわたる所与の出力均一性を達成するための目標の拡散特性(σによって定義される)は、所与の導光路の厚さ、相互作用長、材料吸収損失、及び結合される光の指示及び発散について計算されてもよい。いくつかの拡散部が正常な入射及び空気における角散乱プロフィールについて特徴づけられるので、その後、結果として生じるσは、適切な拡散層を選択するために、より物理的な設計基準(design metric)へと変換されてもよい。最後に、上記の分析はガウス分布に対応するものでるので、ガウス分布からの角散乱プロフィールの大きなずれ(departure)は、上記のモデル化において使用される有効角度幅に影響を及ぼし得る。そのような場合、ボリューム型拡散層として、プロフィールは、Henyey−Greensteinプロフィールによってより適切に記述され、プロフィール内のエネルギーの半分がプロフィールのFWHMをわずかに超える角度幅内に存在し従ってエネルギー分布に基づいて追加のファクターを要求するように、プロフィールを示してもよい。しかし、目標σがモデル最適化によって一旦決定されると、上に記載されるようなシグマ値のそのような返還は、正常な入射及び空気中において拡散層に要求される拡散特性についての適度に近接した記述を提供してもよく、その結果、適切な拡散層が導光路について選択されてもよいと考えられる。
媒体内部のモデルについて、測定された半値全幅を使用して、平均の角度において、
ここで、正常な入射における予期される透過応答が決定される、
Claims (14)
- 表示面を介して見るために表示画像を送信するように構成された表示画像形成層と、
前記表示面の法線に対して狭い範囲の角度の赤外光を結像するように構成された結像検出器であって、前記結像される赤外光は前記表示面上又は前記表示面の近くに配置された1つ以上の物体からの反射を含む、結像検出器と、
前記1つ以上の物体を照らすために、前記赤外光を放射するように構成された視覚システムエミッターと、
対向する上面及び下面を有する可視光及び赤外光を伝達可能な導光路であって、前記視覚システムエミッターからの前記赤外光を受信し、前記上面及び/又は下面からの全反射によって前記赤外光を導き、前記表示面の法線に対して狭い範囲の角度の外側の前記1つ以上の物体上へ前記赤外光を投影するように構成された導光路と
を具備する統合された視覚及び表示システム。 - 前記導光路は前記表示画像形成層と前記表示面との間で層状にされる請求項1に記載のシステム。
- 前記表示画像形成層は前記導光路と前記表示面との間で層状にされる請求項1に記載のシステム。
- 前記視覚システムエミッターは、前記導光路の1つ以上の端に沿って配置された複数の赤外線エミッターを含む請求項1に記載のシステム。
- 前記導光路は、くさび形であり、前記上面及び下面に隣接する等しくない高さの対向する第1の端面及び第2の端面を有し、前記視覚システムエミッターからの赤外光は、前記第1の端面から前記第2の端面に向かって導かれ、臨界前の入射角で前記上面又は下面に達し、前記1つ以上の物体を照らすために前記導光路から屈折する請求項1に記載のシステム。
- 前記導光路はシート状であり、前記上面及び下面に隣接する実質的に等しい高さの対向する第1の端面及び第2の端面、並びに前記上面及び下面に対して平行に配置された拡散層を有し、前記視覚システムエミッターからの赤外光は、前記第1の端面から前記第2の端面に向かって導かれ、前記拡散層と相互作用し、前記1つ以上の物体を照らすために前記導光路から拡散される請求項1に記載のシステム。
- 前記拡散層は、前記導光路上又は前記導光路内の三次元ボリューム上に分散された複数の光拡散機構を含む請求項6に記載のシステム。
- 前記拡散層は、前記導光路上又は前記導光路内の二次元表面に配置された複数の光拡散機構を含む請求項6に記載のシステム。
- 前記拡散層の光拡散強度は、前記視覚システムエミッターからの距離が増加するにつれて増加する請求項6に記載のシステム。
- 前記光拡散強度は、前記視覚システムエミッターからの距離が増加するにつれて連続的に増加する請求項9に記載のシステム。
- 対向する収集光学素子が赤外光を前記導光路の対向する端部へ結合し、前記拡散層の光拡散強度が、前記対向する端部の最も近くでより弱く、前記導光路の中間部分においてより強い請求項9に記載のシステム。
- 前記導光路は、前記拡散層に対して平行に配置された、前記拡散層の前記表示面とは反対側の、反射及び透過フィルター層を含み、前記フィルター層は、より低い入射角の光に対するよりもより大きな入射角の光に対して反射が大きく透過が小さく、前記フィルター層は、可視光に対するよりも赤外光に対して反射が大きく透過が小さい請求項1に記載のシステム。
- 前記フィルター層は、干渉フィルター、ダイクロイックフィルター及びルゲートフィルターのうちの1つ以上を含む請求項12に記載のシステム。
- 前記表示画像形成層に表示データを送信して前記結像検出器から画像データを受信するように構成されたコンピューターをさらに含み、前記コンピューターは、前記表示面上又は前記表示面の近くに配置された1つ以上の物体の位置に応答し、前記1つ以上の物体と前記表示面との間の接触領域の増加又は減少に応答する請求項1に記載のシステム。
Applications Claiming Priority (5)
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US12/621,785 US8730212B2 (en) | 2009-08-21 | 2009-11-19 | Illuminator for touch- and object-sensitive display |
US12/621,785 | 2009-11-19 | ||
PCT/US2010/046141 WO2011022632A2 (en) | 2009-08-21 | 2010-08-20 | Illuminator for touch- and object-sensitive display |
Publications (3)
Publication Number | Publication Date |
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JP2013502588A true JP2013502588A (ja) | 2013-01-24 |
JP2013502588A5 JP2013502588A5 (ja) | 2013-08-22 |
JP5639174B2 JP5639174B2 (ja) | 2014-12-10 |
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JP2012525724A Expired - Fee Related JP5639174B2 (ja) | 2009-08-21 | 2010-08-20 | 統合された視覚及び表示システム |
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US (1) | US8730212B2 (ja) |
EP (1) | EP2467753B1 (ja) |
JP (1) | JP5639174B2 (ja) |
KR (1) | KR101691248B1 (ja) |
CN (1) | CN102472917A (ja) |
BR (1) | BR112012003867A2 (ja) |
CA (1) | CA2768070A1 (ja) |
MY (1) | MY159236A (ja) |
RU (1) | RU2532696C2 (ja) |
WO (1) | WO2011022632A2 (ja) |
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EP2467753A2 (en) | 2012-06-27 |
US8730212B2 (en) | 2014-05-20 |
CA2768070A1 (en) | 2011-02-24 |
BR112012003867A2 (pt) | 2016-03-29 |
EP2467753B1 (en) | 2016-11-09 |
EP2467753A4 (en) | 2014-07-16 |
RU2012106118A (ru) | 2013-08-27 |
RU2532696C2 (ru) | 2014-11-10 |
JP5639174B2 (ja) | 2014-12-10 |
US20110043490A1 (en) | 2011-02-24 |
WO2011022632A2 (en) | 2011-02-24 |
KR20120057618A (ko) | 2012-06-05 |
CN102472917A (zh) | 2012-05-23 |
WO2011022632A3 (en) | 2011-07-21 |
KR101691248B1 (ko) | 2016-12-29 |
MY159236A (en) | 2016-12-30 |
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