JP2015520415A - 指向性表示装置における偏光の回復 - Google Patents
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- 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
- G02B6/0045—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 by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
- G02B6/0048—Tapered light guide, e.g. wedge-shaped light guide with stepwise taper
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- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/12—Combinations of only three kinds of elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/33—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving directional light or back-light sources
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- 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
- G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
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- 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
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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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
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
-
- 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
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough 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
- G02B6/0028—Light guide, e.g. taper
-
- 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
- G02B6/003—Lens or lenticular sheet or layer
-
- 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
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Abstract
Description
Claims (35)
- 入力端を有する導波路と、
前記導波路の前記入力端にわたり横方向の異なる入力位置に配置された一連の複数の光源であって、前記導波路が、前記導波路に沿って光を誘導するための、相対する第1及び第2の誘導面を更に有し、前記第1の誘導面は全反射によって光を誘導するよう構成されており、前記第2の誘導面は、出力光として前記第1の誘導面を通して放出可能な方向に前記導波路を通して誘導された光を反射するよう配向された複数の光抽出機能、及び光を抽出することなく前記導波路を通して光を方向づけるよう構成されている前記複数の光抽出機能間の複数の中間領域を含み、前記導波路は、異なる複数の光源からの入力光を前記出力光として、入力位置にしたがって前記横方向に分布する出力方向に、前記第1の誘導面を通してそれぞれの光学窓内に方向づけるよう構成されている、一連の複数の光源と、
前記第1の誘導面からの前記出力光を受光するよう構成されており、第1の偏光を有する前記出力光の第1の偏光コンポーネントを変調するよう構成された透過型空間光変調器と、
前記導波路の前記第1の誘導面と前記空間光変調器との間に配置され、前記第1の偏光コンポーネントを伝送し、不要光として前記第1の偏光に直交する偏光を有する前記出力光の第2の偏光コンポーネントを反射するよう構成された反射偏光器と、
前記不要光を反射して、前記空間光変調器へ供給し戻すよう構成された前記第2の誘導面の背後に配置された後部反射器と、を備える指向性表示装置であって、
前記空間光変調器に供給し戻された前記不要光の前記偏光を前記第1の偏光に変換するよう、前記指向性表示装置が更に構成されている、指向性表示装置。 - 前記反射偏光器と前記後部反射器との間に配置され、前記空間光変調器に供給し戻された場合に前記不要光の前記偏光を前記第1の偏光に変換するよう構成されたフェーズリターダを更に備える、請求項1に記載の指向性表示装置。
- 前記フェーズリターダが、前記導波路と前記反射偏光器との間に配置されている、請求項2に記載の指向性表示装置。
- 前記後部反射器が、前記第2の誘導面上に形成された層である、請求項3に記載の指向性表示装置。
- 前記フェーズリターダが、前記導波路と前記後部反射器との間に配置されている、請求項2に記載の指向性表示装置。
- 前記後部反射器が、前記空間光変調器に供給し戻された前記不要光の前記偏光を、一対のコーナーファセットからの反射における前記第1の偏光に変換できるよう、前記後部反射器が、前記空間光変調器に対する法線周囲に配向されている面において反対の向きに傾斜した一対の反射コーナーファセットの線形配置を有する、請求項1に記載の指向性表示装置。
- 前記反射偏光器が多層複屈折フィルムである、請求項1〜6のいずれか一項に記載の指向性表示装置。
- 前記反射偏光器が、ガラス上に提供された周期的金属ワイヤーグリッド構造である、請求項7に記載の指向性表示装置。
- 前記反射偏光器が、フィルム積層上に提供された金属グリッド構造である、請求項7に記載の指向性表示装置。
- 前記反射偏光器と前記空間光変調器との間に配置されており、前記第1の偏光コンポーネントを回転するよう構成された偏光回転器を更に備える、請求項1〜9のいずれか一項に記載の指向性表示装置。
- 前記導波路が、前記入力光を反射して前記導波路を通して戻すための、前記入力端に対向する反射端を更に有し、前記複数の光抽出機能が、前記出力光として前記第1の誘導面を通して放出可能な前記方向に、前記反射端から反射後に前記導波路を通して誘導された光を反射するよう配向されている、請求項1〜10のいずれか一項に記載の指向性表示装置。
- 前記複数の光抽出機能が前記第2の誘導面の複数の反射ファセットであり、前記第2の誘導面が前記複数の反射ファセット及び前記複数の中間領域を含む段付き形状を有する、請求項1〜11のいずれか一項に記載の指向性表示装置。
- 前記反射端が、前記導波路にわたる横方向に正の屈折力を有する、請求項11に記載の指向性表示装置。
- 請求項1〜13のいずれか一項に記載の指向性表示装置を備え、前記複数の光源を選択的に操作し、前記出力方向に対応する視野窓内に光を方向づけるよう構成されている制御システムを更に備えるディスプレイ装置。
- 前記制御システムが、一時的に多重化された左右の画像を表示し、前記表示された画像を、観察者の左右の目に対応する位置において視野窓内に同期して方向づけるよう前記表示装置を制御するよう更に構成されている、自動立体ディスプレイ装置である、請求項14に記載のディスプレイ装置。
- 前記制御システムが、前記表示装置にわたり観察者の前記位置を検出するよう構成されたセンサーシステムを更に含み、
前記制御システムが、前記表示された画像を、前記観察者の左右の目に対応する位置における視野窓内へ、前記観察者の検出位置にしたがって方向づけるよう構成されている、請求項15に記載の自動立体ディスプレイ装置。 - 光を誘導するための導波路を含み、
照明アレイからの光を第1の方向に方向づけるよう作用可能な第1の光誘導面と、
光が前記導波路を放出することを可能にする第2の光誘導面と、
前記照明アレイからの光を受光することができる光入力面と、
前記導波路の前記第1の光誘導面に近接し、少なくとも偏光の選択的反射を提供するための高偏光感度反射器と、を更に含む結像指向性バックライトを備える偏光指向性照明装置。 - 前記高偏光感度反射器が高偏光感度の伝送を提供する、請求項17に記載の偏光指向性照明装置。
- 前記導波路の前記第2の光誘導面に近接し、反射光の前記偏光の状態を変更するリターダフィルムを更に備える、請求項17に記載の偏光指向性照明装置。
- 前記導波路が楔形指向性バックライトである、請求項17に記載の偏光指向性照明装置。
- 前記楔形指向性バックライトが、高屈折率材料及び低屈折率材料で交互にコーティングされている、請求項20に記載の偏光指向性照明装置。
- 前記楔形指向性バックライトの前記第1の光誘導面が反射層でコーティングされている、請求項20に記載の偏光指向性照明装置。
- 前記導波路が光弁である、請求項17に記載の偏光指向性照明装置。
- 前記光弁が、反射材料でコーティングされた段付き表面を有する、請求項23に記載の偏光指向性照明装置。
- 前記光弁が実質的に透明である、請求項23に記載の偏光指向性照明装置。
- 前記高偏光感度反射器が多層複屈折フィルムである、請求項17に記載の偏光指向性照明装置。
- 前記高偏光感度反射器が、ガラス上に提供された周期的金属ワイヤーグリッド構造である、請求項26に記載の偏光指向性照明装置。
- 前記高偏光感度反射器が、フィルム積層上に提供された金属グリッド構造である、請求項26に記載の偏光指向性照明装置。
- 導波路の第1の端部に配置された入力側面であって、前記入力側面は少なくとも照明アレイからの光を受光することができる、入力側面と、
前記導波路の第2の端部に配置された反射側面と、
前記導波路の前記入力側面と前記反射側面との間に配置された第1の光方向づけ側面及び第2の光方向づけ側面であって、前記第2の光方向づけ側面は、光が前記導波路を出て行くことを許すように機能する、第1の光方向づけ側面及び第2の光方向づけ側面と、
前記導波路の前記第1の光方向づけ側面に近接し、少なくとも偏光の選択的反射を提供するための高偏光感度反射器と、を含む結像指向性バックライト。 - 光を誘導するための導波路を含み、前記導波路が、
第1の光誘導面と、
前記第1の光誘導面に対向し、少なくとも1つの誘導部及び複数の抽出機能を更に含む第2の光誘導面であって、前記複数の抽出機能が、光が第1の方向に伝搬する場合に実質的に低い損失を伴って前記光を通過可能にし、前記複数の抽出機能の少なくとも第1の抽出機能に直面した際に前記光が前記導波路を放出可能にする、第2の光誘導面と、
前記導波路に近接する空間光変調器と、
前記導波路の前記第1の光方向づけ側面に近接し、少なくとも偏光の選択的反射を提供するための高偏光感度反射器と、を更に含む、偏光回復を提供する光弁システム。 - 前記導波路と前記高偏光感度反射器との間に配置された1/4波長リターダプレートを更に含む、請求項30に記載の偏光回復を提供する光弁システム。
- クリーンアップ偏光器として機能することができ、前記高偏光感度反射器の光路内に配置されたシート偏光器を更に含む、請求項31に記載の偏光回復を提供する光弁システム。
- 前記光弁が、反射材料でコーティングされた段付き表面を更に含む、請求項32に記載の偏光回復を提供する光弁システム。
- 前記反射材料が銀である、請求項33に記載の偏光回復を提供する光弁システム。
- 前記高偏光感度反射器が前記段付き表面に対しておおよそ平行である、請求項33または請求項34に記載の偏光回復を提供する光弁システム。
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US201261649116P | 2012-05-18 | 2012-05-18 | |
US61/649,116 | 2012-05-18 | ||
US13/837,466 | 2013-03-15 | ||
US13/837,466 US9235057B2 (en) | 2012-05-18 | 2013-03-15 | Polarization recovery in a directional display device |
PCT/US2013/041237 WO2013173514A2 (en) | 2012-05-18 | 2013-05-15 | Polarization recovery in a directional display device |
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CN104380177A (zh) | 2015-02-25 |
EP2850483A4 (en) | 2016-03-09 |
KR20150013810A (ko) | 2015-02-05 |
CN104380177B (zh) | 2018-08-21 |
TWI628468B (zh) | 2018-07-01 |
KR102055541B1 (ko) | 2020-01-22 |
US20130308185A1 (en) | 2013-11-21 |
WO2013173514A2 (en) | 2013-11-21 |
EP2850483B1 (en) | 2020-03-11 |
US9910207B2 (en) | 2018-03-06 |
TW201405175A (zh) | 2014-02-01 |
US20160209576A1 (en) | 2016-07-21 |
WO2013173514A3 (en) | 2014-04-17 |
US9235057B2 (en) | 2016-01-12 |
EP2850483A2 (en) | 2015-03-25 |
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