JP5373810B2 - 光導波路及び結像手段を有する照明ユニット - Google Patents
光導波路及び結像手段を有する照明ユニット Download PDFInfo
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Classifications
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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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/124—Geodesic lenses or integrated gratings
-
- 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
- G02B6/0005—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 of the fibre type
- G02B6/001—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 of the fibre type the light being emitted along at least a portion of the lateral surface of the fibre
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2286—Particular reconstruction light ; Beam properties
-
- 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
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
-
- 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
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- G02F1/1336—Illuminating devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Couplings Of Light Guides (AREA)
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Description
Claims (19)
- ストリップ型光導波路と結像手段とを具備する、ホログラフィック表示装置のための照明ユニットであって、
前記光導波路は、入射コヒーレント光を結合出力するための複数の光の出力結合素子を有し、
前記結像手段は、空間シーンのホログラフィック情報で符号化することができる制御可能な空間光変調手段を介して観察者平面に結合出力される前記光を偏向する複数の結像素子を有し、
前記出力結合素子(4)は、前記光導波路において、前記結像素子の前側焦点面に設けられ、少なくとも1次元の空間コヒーレンスを実現する、第2の光源の2次元格子を形成し、
前記第2の光源の各々は、前記制御可能な空間光変調手段(SLM)を介して平面2次元波動場の形態で放射された前記光を平行に向ける1つの結像素子に割り当てられる
ことを特徴とする照明ユニット。
- 前記ストリップ型光導波路(3)は、担持手段(1)に接続され、連続した非線形構造を有することを特徴とする請求項1記載の照明ユニット。
- 前記出力結合素子(4)は、機械的処理若しくはリソグラフィ処理により、又は回折格子を使用することにより生成されるか、
前記光導波路(3)は、個々のモードが異なるエネルギー分布を示すマルチモード光導波路の形態で実現されるか、
又は、その両方である
ことを特徴とする請求項1記載の照明ユニット。 - 前記光導波路(3)及び出力結合素子(4)は、露光することによりホログラフィック記録媒体に直接刻み込まれるか、
前記出力結合素子(4)は、現位置の露光により生成されるか、
又は、その両方である
ことを特徴とする請求項1記載の照明ユニット。 - 前記光導波路(3)及び前記担持手段(1)の少なくともいずれかは、前記出力結合素子(4)を生成するために感光性被覆層(2)により少なくとも部分的に被覆されることを特徴とする請求項2記載の照明ユニット。
- 前記光導波路(3)の前記出力結合素子(4)は、実現される前記第2の光源に局所的に制限される体積格子の形態で、感光性コアに又は感光性クラッドに、任意に露光されることを特徴とする請求項5記載の照明ユニット。
- 前記露光された体積格子の格子面は、実現される前記第2の光源のサイズに依存して、平面形状又は湾曲形状を有することを特徴とする請求項6記載の照明ユニット。
- 前記光導波路(3)は、GRINレンズにより実現されるか、又は、
前記光導波路(3)がGRINレンズにより実現されるとともに、当該GRINレンズは、露光により、導波路格子の形態で又は少なくとも2次元の連続巻回部の形態で、透明な担持手段(1)に任意に刻み込まれる
ことを特徴とする請求項1記載の照明ユニット。 - 前記出力結合素子(4)は、2次元符号化される前記光変調手段を照明するために点光源の形態で第2の光源を生成することを特徴とする請求項1記載の照明ユニット。
- 個々の出力結合素子(4)の、幾何学的配置及びサイズの少なくともいずれかは、前記個々の出力結合素子(4)において結合出力される前記光の強度分布を制御するために、個々の回折格子により変更可能であることを特徴とする請求項1記載の照明ユニット。
- 前記結像素子は、コリメートレンズアレイの形態で提供されることと、
前記コリメートレンズ及び前記出力結合素子(4)の少なくともいずれかは、ホログラムとして生成されることと、
前記光の放射を前記割り当てられたコリメートレンズに制限する開口部の構成が、前記出力結合素子(4)と前記コリメートレンズアレイとの間に提供されることと
の少なくともいずれかであることを特徴とする請求項1記載の照明ユニット。 - 前記前側焦点面の前記出力結合素子(4)は、照明される前記光変調手段の表面より小さい領域に延在することを特徴とする請求項1記載の照明ユニット。
- 前記体積格子は、露光することにより、位相のみの格子又は振幅のみの格子として、任意に前記光導波路(3)に刻み込まれることを特徴とする請求項6記載の照明ユニット。
- 前記第2の光源の格子は、一定の間隔を有するか、又は、当該格子の中央から周縁部に向けて距離が増加する周期を示すことを特徴とする請求項1記載の照明ユニット。
- 前記出力結合素子(4)は、軸方向に対称的な強度分布を有する第2の光源を実現することを特徴とする請求項1記載の照明ユニット。
- 前記光導波路は、アクティブ変調器が個々の第2の光源(SLQ)の強度を輝度制御するために提供される結合点を有することを特徴とする請求項1記載の照明ユニット。
- 各結像素子には、少なくとも1つの出力結合素子(4)が割り当てられることを特徴とする請求項1記載の照明ユニット。
- 前記出力結合素子(4)は、可逆的に変更可能な屈折率を有する制御可能な層に接続され、前記放射された光は、実際の制御に依存して変動するように前記割り当てられた平行な結像素子に向けられることを特徴とする請求項1記載の照明ユニット。
- 空間シーンの回折構造が符号化され、請求項1から18の少なくとも1項に記載の照明ユニットにより生成されるコヒーレント平面波動場により照明される空間光変調手段。
Applications Claiming Priority (5)
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DE102007060183 | 2007-12-03 | ||
DE102007060183.4 | 2007-12-03 | ||
DE102008043092.7 | 2008-10-22 | ||
DE102008043092 | 2008-10-22 | ||
PCT/EP2008/066638 WO2009071546A1 (de) | 2007-12-03 | 2008-12-02 | Beleuchtungseinheit mit einem lichtwellenleiter und einem abbildungsmittel |
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JP2011505655A JP2011505655A (ja) | 2011-02-24 |
JP5373810B2 true JP5373810B2 (ja) | 2013-12-18 |
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US (1) | US20100259804A1 (ja) |
JP (1) | JP5373810B2 (ja) |
TW (1) | TWI490433B (ja) |
WO (1) | WO2009071546A1 (ja) |
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DE10339076B4 (de) * | 2003-08-26 | 2007-10-31 | Seereal Technologies Gmbh | Autostereoskopisches Multi-User-Display |
JP2005071928A (ja) * | 2003-08-27 | 2005-03-17 | Sharp Corp | バックライト及び導光体の作製方法 |
DE10359403B4 (de) * | 2003-12-18 | 2005-12-15 | Seereal Technologies Gmbh | Autostereoskopisches Multi-User-Display |
US20060250816A1 (en) * | 2005-04-05 | 2006-11-09 | Ju Gao | Fiber illumination system for back lighting |
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2008
- 2008-12-02 JP JP2010535408A patent/JP5373810B2/ja not_active Expired - Fee Related
- 2008-12-02 WO PCT/EP2008/066638 patent/WO2009071546A1/de active Application Filing
- 2008-12-02 US US12/745,971 patent/US20100259804A1/en not_active Abandoned
- 2008-12-03 TW TW097147044A patent/TWI490433B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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US20100259804A1 (en) | 2010-10-14 |
TW200940904A (en) | 2009-10-01 |
WO2009071546A1 (de) | 2009-06-11 |
TWI490433B (zh) | 2015-07-01 |
JP2011505655A (ja) | 2011-02-24 |
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