WO2013069040A1 - 投写型映像表示装置 - Google Patents
投写型映像表示装置 Download PDFInfo
- Publication number
- WO2013069040A1 WO2013069040A1 PCT/JP2011/006179 JP2011006179W WO2013069040A1 WO 2013069040 A1 WO2013069040 A1 WO 2013069040A1 JP 2011006179 W JP2011006179 W JP 2011006179W WO 2013069040 A1 WO2013069040 A1 WO 2013069040A1
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- WIPO (PCT)
- Prior art keywords
- optical system
- optical
- integrator
- case
- light
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/145—Housing details, e.g. position adjustments thereof
Definitions
- the present invention relates to a projection display apparatus.
- Projection-type image display devices such as liquid crystal projectors irradiate light emitted from a light source such as a mercury lamp onto a display element such as a liquid crystal panel and enlarge and project an image formed by the display element onto a screen using a projection lens. It is.
- the configuration of the optical system of the apparatus includes an integrator optical system that collects and equalizes a light beam emitted from a light source, a color separation optical system that performs color separation, and a light modulation device that performs light modulation in accordance with image information.
- a color synthesis optical system for synthesizing light-modulated light a projection optical system for enlarging and projecting the synthesized light onto a projection surface such as a screen, an optical case for holding and fixing the various optical systems, and fixing the optical case And a housing for storing.
- each optical component constituting an integrator optical system, a color separation optical system, or the like has a structure that is positioned and fixed in a groove formed in an optical case.
- the optical case has a complicated internal structure that matches the shape of each optical component to be stored, and is generally manufactured by injection molding or the like using a synthetic resin material. Therefore, the optical case itself is limited in strength and easily deformed compared to a metal material, and when the optical case is fixed to the device casing, the optical case is deformed by receiving external force. Will also be transformed. As a result, there is a problem in that the positional relationship between the optical components housed in the optical case is shifted, so that the quality of the image displayed on the screen is deteriorated (raster shift, luminance reduction, etc. occurs).
- an object of the present invention is to provide a projection display apparatus that can maintain the positional accuracy of an integrator optical system even when subjected to an external force.
- the projection display apparatus is separated by an integrator optical system that collects and equalizes light from a light source, a color separation optical system that separates colors of light emitted from the integrator optical system, and a color separation optical system.
- a color synthesis optical system for synthesizing the synthesized light a projection optical system for emitting the light synthesized by the color synthesis optical system to the projection surface, an integrator optical system, a color separation optical system, and a color synthesis optical system, respectively
- a first optical case that is fixedly stored in a predetermined position and a second optical case that stores an optical component included in the integrator optical system fixedly in a predetermined position.
- the second optical case includes: 1 is attached to the optical case.
- the figure which shows the whole structure of the projection type video display apparatus of a present Example The figure which shows the state which took out the optical engine and the projection optical system from the housing
- FIG. 1 is a diagram showing an overall configuration of the projection display apparatus according to the present embodiment, and shows an internal configuration with the upper cover of the display device removed.
- the housing 1 includes an optical engine 2 that emits light from a light source and irradiates a liquid crystal panel as a display element to form an image, and a projection optical system 3 that magnifies and projects an image formed on the liquid crystal panel with a projection lens. It is stored.
- the power supply unit 6 and the cooling unit 7, and a video signal circuit and a control circuit (not shown) are accommodated.
- FIG. 2 is a view showing a state in which the optical engine 2 and the projection optical system 3 are taken out from the housing 1.
- the optical engine 2 and the projection optical system 3 are mounted and fixed on a common base 4.
- the projection optical system 3 may be mounted on the optical engine 2 and fixed.
- the optical engine 2 includes a light source unit 21, a color separation optical system 22, a color synthesis optical system 23, and an iris unit 24. These components are housed in a cylindrical light guide 20 (first optical case) and fixed at a predetermined position.
- the light source unit 21 is a light source such as an ultra-high pressure mercury lamp and emits substantially white light.
- the color separation optical system 22 separates substantially white light into RGB three primary color lights, and guides each of the three primary color lights to the corresponding liquid crystal panel.
- the color synthesizing optical system 23 includes an RGB liquid crystal panel and a cross dichroic prism, forms each image based on the RGB signals, and performs color synthesis of these images.
- the projection optical system 3 includes a projection lens 31 and a lens shift mechanism 32.
- the image light emitted from the color synthesis optical system 23 is enlarged by the projection lens 31 and projected onto a screen or the like.
- the lens shift mechanism 32 holds the projection lens 31 and moves it in two axial directions orthogonal to the optical axis (projection direction).
- the lens shift mechanism 32 includes a horizontal direction (X direction) drive unit 32x and a vertical direction (Y direction) drive unit 32y. Have.
- the projection lens 31 is fixed to the lens mounting surface 32 a of the lens shift mechanism 32. Thereby, the position of the image projected on the screen can be moved and adjusted in the horizontal direction and the vertical direction.
- the projection optical system may not include a lens shift mechanism, and the projection lens may be directly fixed to the optical engine.
- FIG. 3 is a diagram showing the configuration of the light guide 20 and the integrator optical unit 5.
- the integrator optical unit 5 is mounted and fixed on the light guide 20 in a state where optical components of the integrator optical system are fixed.
- the role of the integrator optical system is to equalize uneven brightness within the illumination range of the light emitted from the light source unit 21 and illuminate a rectangular range larger than the opening of the rectangular liquid crystal panel.
- the iris unit 24 is inserted from the insertion hole 51 of the integrator optical unit 5 and fixed to the optical engine 2 so that the wing 241 is inserted between the first integrator lens and the second integrator lens.
- the amount of light emitted from the light source unit 21 is adjusted by opening and closing the wing 241. As a result, the contrast can be adjusted.
- FIG. 4 is a diagram showing a configuration of an integrator optical case 50 (second optical case) and optical components fixed to the integrator optical case 50 (second optical case).
- the first integrator lens 60 and the second integrator lens 61 are respectively inserted into grooves (shown in FIG. 5) of the integrator optical case 50. In the groove, a positioning surface perpendicular to the optical axis and perpendicular to the optical axis is formed.
- the integrator lens By inserting the integrator lens through the spring member 65 (two for each integrator lens in the example of FIG. 4), the integrator lens is pressed and fixed to the positioning surfaces perpendicular to and perpendicular to the optical axis.
- a polarizing beam splitter (hereinafter referred to as PBS) 62 is disposed substantially parallel to the integrator lens. There is no need for PBS.
- FIG. 5 is a perspective view showing the shape of the integrator optical case 50.
- 5A is a view seen from the top surface of the integrator optical case 50
- FIG. 5B is a view seen from the bottom surface of the integrator optical case 50.
- the integrator optical case 50 has two grooves 52 for inserting the first integrator lens 60 and the second integrator lens 61, and spring members 65 for positioning and holding the integrator lens at both ends of each groove. Insertion hole 53 and adhesive filling hole 54 are provided. An adhesive filling hole 54 for bonding the integrator optical case 50 and the integrator lens with an adhesive or the like is provided in order to ensure the holding after the integrator lens is fixed. There is no need for adhesion.
- the reinforcing rib 55 is inserted between the two integrator lens insertion grooves. This increases the rigidity of the integrator optical case 50 and makes it difficult to deform.
- the reinforcing rib 55 is provided with a positioning pin 56 for fixing to the light guide 20 and can be positioned with high accuracy by fitting with the positioning hole 25 of the light guide.
- the insertion of the integrator optical case 50 into the light guide 20 is performed in the direction opposite to the insertion direction of the integrator lens after inserting the optical components of the integrator optical system into the integrator optical case 50. That is, the upper surface of the integrator optical case 50 is positioned in the downward direction of FIG. 3, and the bottom surface of the integrator optical case 50 is positioned in the upward direction of FIG.
- the integrator optical case 50 is provided with PBS positioning pins 57 (four in the example of FIG. 5), and can be positioned with high precision by fitting with the positioning holes 63 of the PBS holder. Further, the integrator optical case 50 has screw holes 58 (two places in the example of FIG. 5) for attaching the integrator optical upper case 70, and the integrator optical case 50 is fixed by screws. Stiffness can be strengthened. Further, the integrator optical case 50 has screw holes 59 (two places in the example of FIG. 5) for attachment to the light guide 20.
- the first integrator lens 60, the second integrator lens 61, and the PBS 62 are integrally fixed to the integrator optical case 50, and only the integrator optical case 50 is attached to the light guide 20. That is, since the first integrator lens 60, the second integrator lens 61, and the PBS 62 are not directly fixed to the light guide 20, even if the optical case 20 is deformed by external force, the rigid integrator optical case 50 prevents the deformation.
- Each optical component housed therein is held at a predetermined position with a predetermined accuracy. Accordingly, it is possible to maintain the positional accuracy of each optical component even when subjected to an external force or the like, and to prevent the quality of the displayed image from deteriorating (raster deviation, luminance reduction, etc.).
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (5)
- 光源からの光を集光して均一化するインテグレータ光学系と、
前記インテグレータ光学系から出射された光の色を分離する色分離光学系と、
前記色分離光学系により分離された光を合成する色合成光学系と、
前記色合成光学系により合成された光を投写面に出射する投写光学系と、
前記インテグレータ光学系、前記色分離光学系、及び、前記色合成光学系を、それぞれ所定の位置に固定して収納する第1の光学ケースと、
前記インテグレータ光学系が備える光学部品を、所定の位置に固定して収納する第2の光学ケースを備え、
前記第2の光学ケースは、前記第1の光学ケースに取り付けられる、投写型映像表示装置。 - 前記第2の光学ケースは、前記光学部品が挿入される方向とは逆方向に、前記第1の光学ケースに挿入されて取り付けられる、請求項1記載の投写型映像表示装置。
- 前記インテグレータ光学系は、更に、前記光源からの光の量を調整するアイリスユニットを備え、
前記第2の光学ケースは、当該第2に光学ケースの底面に、前記アイリスユニットを挿入するための挿入穴を備える、請求項2記載の投写型映像表示装置。 - 前記光学部品とは、第1及び第2のインテグレータレンズを含み、
前記第1及び第2のインテグレータレンズは、それぞれ、前記光源からの光の軸に垂直な面に沿って、前記第2の光学ケースに挿入される、請求項1乃至3何れか一に記載の投写型映像表示装置。 - 前記第1及び第2のインテグレータレンズの間に、補強リブを備える、請求項4記載の投写型映像表示装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013542674A JP5798196B2 (ja) | 2011-11-07 | 2011-11-07 | 投写型映像表示装置 |
US14/356,451 US9335618B2 (en) | 2011-11-07 | 2011-11-07 | Projection image display apparatus |
CN201180074713.7A CN103959162B (zh) | 2011-11-07 | 2011-11-07 | 投影型影像显示装置 |
PCT/JP2011/006179 WO2013069040A1 (ja) | 2011-11-07 | 2011-11-07 | 投写型映像表示装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/006179 WO2013069040A1 (ja) | 2011-11-07 | 2011-11-07 | 投写型映像表示装置 |
Publications (1)
Publication Number | Publication Date |
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WO2013069040A1 true WO2013069040A1 (ja) | 2013-05-16 |
Family
ID=48288632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2011/006179 WO2013069040A1 (ja) | 2011-11-07 | 2011-11-07 | 投写型映像表示装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9335618B2 (ja) |
JP (1) | JP5798196B2 (ja) |
CN (1) | CN103959162B (ja) |
WO (1) | WO2013069040A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014074770A2 (en) | 2012-11-09 | 2014-05-15 | Heliae Development, Llc | Balanced mixotrophy methods |
WO2014074772A1 (en) | 2012-11-09 | 2014-05-15 | Heliae Development, Llc | Mixotrophic, phototrophic, and heterotrophic combination methods and systems |
CN105607394B (zh) * | 2016-02-26 | 2018-06-26 | 苏州佳世达光电有限公司 | 一种光机模组及投影装置 |
CN112352193B (zh) * | 2018-05-28 | 2022-05-24 | 夏普Nec显示器解决方案株式会社 | 显示装置 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0296703A (ja) * | 1988-10-03 | 1990-04-09 | Daiko Seisakusho:Kk | 複合レンズ及びその製造方法 |
JP2002062587A (ja) * | 2000-08-22 | 2002-02-28 | Seiko Epson Corp | 照明光学系を搭載するための基枠およびこれを用いた照明光学系、プロジェクタ |
JP2005352349A (ja) * | 2004-06-14 | 2005-12-22 | Nec Viewtechnology Ltd | 光学ユニットおよびその製造方法、投写型表示装置 |
JP2007025405A (ja) * | 2005-07-19 | 2007-02-01 | Sanyo Electric Co Ltd | プロジェクタ装置 |
JP2007047337A (ja) * | 2005-08-09 | 2007-02-22 | Hitachi Ltd | 投射型映像表示装置 |
JP2007078730A (ja) * | 2005-09-09 | 2007-03-29 | Sanyo Electric Co Ltd | プロジェクタ装置 |
WO2009048100A1 (ja) * | 2007-10-10 | 2009-04-16 | Nec Display Solutions, Ltd. | 光学ユニットおよび投写型表示装置 |
JP2010008767A (ja) * | 2008-06-27 | 2010-01-14 | Hitachi Ltd | 光学ユニット及び投射型映像表示装置 |
JP2010217651A (ja) * | 2009-03-18 | 2010-09-30 | Seiko Epson Corp | 調光装置及びかかる調光装置を用いたプロジェクター用の照明装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005024807A (ja) | 2003-07-01 | 2005-01-27 | Hitachi Ltd | 投射型映像表示装置 |
CN100495197C (zh) | 2003-09-10 | 2009-06-03 | 松下电器产业株式会社 | 投影式显示装置 |
KR100713132B1 (ko) * | 2005-05-27 | 2007-05-02 | 삼성전자주식회사 | 프로젝터 |
JP5119803B2 (ja) | 2007-08-22 | 2013-01-16 | 富士ゼロックス株式会社 | 電位制御装置および画像形成装置 |
-
2011
- 2011-11-07 WO PCT/JP2011/006179 patent/WO2013069040A1/ja active Application Filing
- 2011-11-07 JP JP2013542674A patent/JP5798196B2/ja not_active Expired - Fee Related
- 2011-11-07 US US14/356,451 patent/US9335618B2/en not_active Expired - Fee Related
- 2011-11-07 CN CN201180074713.7A patent/CN103959162B/zh not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0296703A (ja) * | 1988-10-03 | 1990-04-09 | Daiko Seisakusho:Kk | 複合レンズ及びその製造方法 |
JP2002062587A (ja) * | 2000-08-22 | 2002-02-28 | Seiko Epson Corp | 照明光学系を搭載するための基枠およびこれを用いた照明光学系、プロジェクタ |
JP2005352349A (ja) * | 2004-06-14 | 2005-12-22 | Nec Viewtechnology Ltd | 光学ユニットおよびその製造方法、投写型表示装置 |
JP2007025405A (ja) * | 2005-07-19 | 2007-02-01 | Sanyo Electric Co Ltd | プロジェクタ装置 |
JP2007047337A (ja) * | 2005-08-09 | 2007-02-22 | Hitachi Ltd | 投射型映像表示装置 |
JP2007078730A (ja) * | 2005-09-09 | 2007-03-29 | Sanyo Electric Co Ltd | プロジェクタ装置 |
WO2009048100A1 (ja) * | 2007-10-10 | 2009-04-16 | Nec Display Solutions, Ltd. | 光学ユニットおよび投写型表示装置 |
JP2010008767A (ja) * | 2008-06-27 | 2010-01-14 | Hitachi Ltd | 光学ユニット及び投射型映像表示装置 |
JP2010217651A (ja) * | 2009-03-18 | 2010-09-30 | Seiko Epson Corp | 調光装置及びかかる調光装置を用いたプロジェクター用の照明装置 |
Also Published As
Publication number | Publication date |
---|---|
JP5798196B2 (ja) | 2015-10-21 |
CN103959162B (zh) | 2016-05-25 |
CN103959162A (zh) | 2014-07-30 |
US20140293238A1 (en) | 2014-10-02 |
JPWO2013069040A1 (ja) | 2015-04-02 |
US9335618B2 (en) | 2016-05-10 |
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