JP4420091B2 - 光学装置及びプロジェクタ - Google Patents
光学装置及びプロジェクタ Download PDFInfo
- Publication number
- JP4420091B2 JP4420091B2 JP2007236293A JP2007236293A JP4420091B2 JP 4420091 B2 JP4420091 B2 JP 4420091B2 JP 2007236293 A JP2007236293 A JP 2007236293A JP 2007236293 A JP2007236293 A JP 2007236293A JP 4420091 B2 JP4420091 B2 JP 4420091B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- light
- compensation element
- optical axis
- refractive index
- 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
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133632—Birefringent elements, e.g. for optical compensation with refractive index ellipsoid inclined relative to the LC-layer surface
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/02—Number of plates being 2
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/13—Positive birefingence
-
- 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
- G02F2413/00—Indexing scheme related to G02F1/13363, i.e. to birefringent elements, e.g. for optical compensation, characterised by the number, position, orientation or value of the compensation plates
- G02F2413/14—Negative birefingence
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Description
図1は、本発明の第1実施形態に係る光学装置である液晶ライトバルブの構造を説明する拡大断面図であり、図2は液晶ライトバルブの構成を説明する概念図である。
図7は、図1や図6に示す液晶ライトバルブ31を組み込んだプロジェクタの光学系の構成を説明する図である。
Claims (6)
- 液晶を保持する垂直配向型の液晶セルと、
システム光軸に対して傾斜した光学軸を有する負の一軸性の屈折材料で形成され、前記液晶セルに対して相対的に固定されている補償素子と、
前記システム光軸に垂直な面内に位相差を有する平板状の調整素子と、
前記調整素子を前記システム光軸に垂直な面内で回転させ透過する光に影響を与える位相差を調整するための回転調整機構と、
を備え、
前記システム光軸に垂直な面内における、無印加時の前記液晶の屈折率と前記補償素子の屈折率との合成である異方性媒体の位相差が、前記調整素子により補償されている光学装置。 - 前記補償素子は、サファイア板であり、前記液晶セルに密着している、請求項1記載の光学装置。
- 前記調整素子は、前記システム光軸に垂直な面に平行な方向に延びる光学軸を有する板状の部材である、請求項1記載の光学装置。
- 前記調整素子は、前記液晶セルの入射側に配置される、請求項1及び請求項3のいずれか一項記載の光学装置。
- 前記液晶セルの入射側及び射出側に、それぞれ第1偏光板及び第2偏光板を有する、請求項1及び請求項4のいずれか一項記載の光学装置。
- 請求項1から請求項5までのいずれか一項記載の光変調用の光学装置と、
前記光学装置を照明する光を発生する光源と、
前記光学装置を経た光を投射する投射光学系と、
を備えるプロジェクタ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007236293A JP4420091B2 (ja) | 2007-09-12 | 2007-09-12 | 光学装置及びプロジェクタ |
US12/202,892 US8023050B2 (en) | 2007-09-12 | 2008-09-02 | Optical device and projector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007236293A JP4420091B2 (ja) | 2007-09-12 | 2007-09-12 | 光学装置及びプロジェクタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009069337A JP2009069337A (ja) | 2009-04-02 |
JP4420091B2 true JP4420091B2 (ja) | 2010-02-24 |
Family
ID=40431462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007236293A Expired - Fee Related JP4420091B2 (ja) | 2007-09-12 | 2007-09-12 | 光学装置及びプロジェクタ |
Country Status (2)
Country | Link |
---|---|
US (1) | US8023050B2 (ja) |
JP (1) | JP4420091B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111060452B (zh) * | 2019-12-23 | 2022-08-05 | 山西斯珂炜瑞光电科技有限公司 | 一种补偿古依相移增加非线性相互作用的晶体炉装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2595156B1 (fr) * | 1986-02-28 | 1988-04-29 | Commissariat Energie Atomique | Cellule a cristal liquide utilisant l'effet de birefringence controlee electriquement et procedes de fabrication de la cellule et d'un milieu uniaxe d'anisotropie optique negative, utilisable dans celle-ci |
JP2000347177A (ja) * | 1999-03-29 | 2000-12-15 | Minolta Co Ltd | 表示光学装置及びそれを用いたプロジェクター表示装置 |
JP4367585B2 (ja) | 1999-07-27 | 2009-11-18 | ソニー株式会社 | 液晶プロジェクタ装置 |
JP2001117087A (ja) | 1999-10-19 | 2001-04-27 | Minolta Co Ltd | 液晶表示装置と液晶プロジェクター |
JP3724335B2 (ja) | 2000-05-31 | 2005-12-07 | ソニー株式会社 | 液晶プロジェクタ装置及びコントラストの改善方法 |
JP2002182213A (ja) | 2000-12-12 | 2002-06-26 | Sony Corp | 投射型液晶表示装置およびその調整方法 |
JP2003121807A (ja) | 2001-10-12 | 2003-04-23 | Fujitsu Ltd | 可変偏光面回転子およびそれを用いた光デバイス |
JP3863446B2 (ja) * | 2002-03-08 | 2006-12-27 | シャープ株式会社 | 液晶表示装置 |
JP2005091897A (ja) * | 2003-09-18 | 2005-04-07 | Sharp Corp | 液晶表示装置 |
JP2005316241A (ja) | 2004-04-30 | 2005-11-10 | Optimax Technology Corp | 液晶ディスプレイパネル試験装置及び方法 |
JP2006011298A (ja) | 2004-06-29 | 2006-01-12 | Sony Corp | 液晶プロジェクタ装置 |
JP2006078637A (ja) | 2004-09-08 | 2006-03-23 | Seiko Epson Corp | 液晶装置および投射型表示装置 |
JP2006119444A (ja) * | 2004-10-22 | 2006-05-11 | Fuji Photo Film Co Ltd | 位相差補償素子およびそれを用いた液晶装置 |
JP4839623B2 (ja) | 2005-02-02 | 2011-12-21 | 株式会社日立製作所 | 投射型映像表示装置 |
JP4642856B2 (ja) * | 2005-09-30 | 2011-03-02 | シャープ株式会社 | 液晶表示装置及びその製造方法 |
-
2007
- 2007-09-12 JP JP2007236293A patent/JP4420091B2/ja not_active Expired - Fee Related
-
2008
- 2008-09-02 US US12/202,892 patent/US8023050B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20090066860A1 (en) | 2009-03-12 |
JP2009069337A (ja) | 2009-04-02 |
US8023050B2 (en) | 2011-09-20 |
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