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71. 发明授权

US06535334B2 Polarization conversion system for projection displays resistant to damage from heat and light 失效
公开(公告)号：US06535334B2
公开(公告)日：2003-03-18
申请号：US09827066
申请日：2001-04-05
申请人： Robert H. Kane
发明人： Robert H. Kane
IPC分类号： G02B2728
CPC分类号： G02B27/285 , G02B5/06 , G02B27/283 , G02F1/13362 , G02F2001/13355
摘要： A polarization conversation device (PCS) wherein a series of slots are formed in a frame to orient coated glass plates with retarder elements positioned there between. The PCS components are assembled within the frame and cover plates are secured thereto in a fluid-tight manner forming a fluid tight enclosure for receiving an index-matching fluid for homogenizing the temperature at any bright spots.

72. 发明申请

US20020145800A1 Polarization conversion system for projection displays resistant to damage from heat and light 失效
标题翻译：用于投影显示屏的极化转换系统可抵抗热和光损坏
公开(公告)号：US20020145800A1
公开(公告)日：2002-10-10
申请号：US09827066
申请日：2001-04-05
申请人： Koninklijke Philips Electronics N.V.
发明人： Robert H. Kane
IPC分类号： G02B005/30 , G02B027/28
CPC分类号： G02B27/285 , G02B5/06 , G02B27/283 , G02F1/13362 , G02F2001/13355
摘要： A polarization conversation device (PCS) wherein a series of slots are formed in a frame to orient coated glass plates with retarder elements positioned there between. The PCS components are assembled within the frame and cover plates are secured thereto in a fluid-tight manner forming a fluid tight enclosure for receiving an index-matching fluid for homogenizing the temperature at any bright spots.
摘要翻译：一种偏振通话装置（PCS），其中在一个框架中形成一系列的狭槽，以便定位其间位于其间的延迟器元件的涂覆的玻璃板。 PCS组件组装在框架内，盖板以流体密封的方式固定到其上，形成流体密封的外壳，用于接收用于在任何亮点均匀化温度的折射率匹配流体。

73. 发明申请

US20020093737A1 Polarization luminaire and projection display 审中-公开
公开(公告)号：US20020093737A1
公开(公告)日：2002-07-18
申请号：US10098349
申请日：2002-03-18
申请人： Seiko Epson Corporation
发明人： Yoshitaka Itoh , Kunio Yoneno
IPC分类号： G03B021/14 , G02B005/30 , G02B027/28
CPC分类号： H04N9/3105 , G02B27/28 , G02B27/283 , G02B27/285 , G02F1/13362 , G02F2001/13355 , H04N9/3167
摘要： A polarization luminaire is disclosed having a light source, a system of the optical integrator, a polarized light splitting device for splitting a light emitted from the light source into two kinds of polarized lights whose polarization directions are perpendicular to each other and whose traveling directions are apart from each other by an angle of less than 90 degrees, and a polarization conversion device for causing the two kinds of polarized lights to have the same polarization direction. The polarized light splitting device is placed on one of the entrance side and the outputting side of the first lens plate of the system of the optical integrator or is placed within the second lens plate. A prism beam splitter having a polarized light splitting film constituted by a thermally stable dielectric multi-layer film is suitable for the polarized light splitting device. Most of the polarized lights can be utilized by causing the polarized lights to have the same polarization direction. Further, the polarized lights, which have uniform brightness, can be emitted. Consequently, the polarization luminaire is suited to be a luminaire for use in a projection display that has liquid crystal light valves.

74. 发明授权

US06312130B2 Optical device, and projection display device including the same 有权
公开(公告)号：US06312130B2
公开(公告)日：2001-11-06
申请号：US09750710
申请日：2001-01-02
申请人： Shinji Haba , Takeshi Takizawa
发明人： Shinji Haba , Takeshi Takizawa
IPC分类号： G03B2126
CPC分类号： H04N5/7416 , G02B27/283 , G02B27/285 , G02F1/133308 , G02F1/133526 , G02F1/133536 , G02F2001/133548 , G02F2001/13355 , G02F2201/46 , G03B21/26 , H04N9/3102
摘要： To increase the usage efficiency of the light of optical elements used in a projection display device, a polarizing conversion unit is provided. This polarizing conversion unit consists of a unit frame, two polarizing conversion element arrays, a light-shielding plate, a lens array, and clips. From the side of one open surface of the unit frame, the two polarizing conversion element arrays are inserted, and the light-shielding plate and the lens array are inserted from the side of the other open surface in this order. These optical elements are clamped by four clips from the two directions of up and down in a state of being stored in the unit frame. Since the clips are formed of an elastic body, the clips can be easily attached and detached, and the respective parts of the polarizing conversion unit can also be easily attached and detached to and from the unit frame. In addition, these optical elements may be sequentially inserted from the side of one open surface.

75. 发明授权

US06239851B1 Planar light source device having polarization separator formed of two sheets with mating triangular prisms and different indices of refraction 失效
$Planar light source device having polarization separator formed of two sheets with mating triangular prisms and different indices of refraction$
标题翻译：平面光源装置具有由具有配合三角棱镜并且具有不同折射率的两个片材形成的偏振分离器
公开(公告)号：US06239851B1
公开(公告)日：2001-05-29
申请号：US09051504
申请日：1998-07-06
申请人： Tsuyonobu Hatazawa , Hideki Hayashi , Kozo Nakamura , Takashi Watanabe , Johji Mamiya , Masaru Suzuki , Hiroshi Tanase
发明人： Tsuyonobu Hatazawa , Hideki Hayashi , Kozo Nakamura , Takashi Watanabe , Johji Mamiya , Masaru Suzuki , Hiroshi Tanase
IPC分类号： G02F11335
CPC分类号： G02B6/0056 , G02B6/0001 , G02B6/0038 , G02B6/0053 , G02B6/0055 , G02F1/133536 , G02F1/13362 , G02F2001/13355
摘要： The purpose of the invention is to provide a light guide of a variety of forms having a uniform distribution of brightness in the plane and a planer light source device for a liquid crystal display device which uses such light guide. The light guide comprises a first surface which is a surface to which a natural polarization light is incident and a second surface other than the first surface which is an exit surface of a specific polarization light into which, said natural polarization light is modulated, wherein; said light guide has an interface of two materials of different indices of refraction oriented at an angle of &thgr;B+/−&agr; degrees relative to the primary propagation direction of said incident light, said &thgr;B being an angle satisfying Brewster's condition, more than two orientations of said interface exist in a single light guide, and the difference between the indices of refraction of the two materials of different indices of refraction is between 0.001 and 1.0. &thgr;B is typically about 45 degrees. The light guide comprises a first transparent member having a plurality of upwardly convex right angle isosceles triangles on a first surface thereof and a first index of refraction and a second transparent member having a plurality of downwardly convex right angle isosceles triangles on a second surface thereof and a second index of refraction, and said first surface and said second surface contact each other.
摘要翻译：本发明的目的是提供一种在平面中具有均匀分布的亮度的各种形式的光导和使用这种光导的液晶显示装置的平面光源装置。光导包括作为自然极化光入射的表面的第一表面和除了所述自然偏振光被调制到其中的特定偏振光的出射表面的第一表面以外的第二表面，其中：所述光导具有相对于所述入射光的主传播方向以θB+/-α度的角度定向的不同折射率的两种材料的界面，所述θB是满足布鲁斯特状态的角度，所述多个方向界面存在于单个光导中，不同折射率的两种材料的折射率之差在0.001和1.0之间。 θB通常约为45度。光导包括第一透明构件，在第一透明构件的第一表面上具有多个向上凸起的直角等腰三角形和第一折射率，第二透明构件在其第二表面上具有多个向下凸出的直角等腰三角形，第二折射率，并且所述第一表面和所述第二表面彼此接触。

76. 发明申请

US20010000972A1 Optical device, and projection display device including the same 有权
公开(公告)号：US20010000972A1
公开(公告)日：2001-05-10
申请号：US09750710
申请日：2001-01-02
申请人： Seiko Epson Corporation
发明人： Shinji Haba , Takeshi Takizawa
IPC分类号： G03B021/26
CPC分类号： H04N5/7416 , G02B27/283 , G02B27/285 , G02F1/133308 , G02F1/133526 , G02F1/133536 , G02F2001/133548 , G02F2001/13355 , G02F2201/46 , G03B21/26 , H04N9/3102
摘要： To increase the usage efficiency of the light of optical elements used in a projection display device, a polarizing conversion unit is provided. This polarizing conversion unit consists of a unit frame, two polarizing conversion element arrays, a light-shielding plate, a lens array, and clips. From the side of one open surface of the unit frame, the two polarizing conversion element arrays are inserted, and the light-shielding plate and the lens array are inserted from the side of the other open surface in this order. These optical elements are clamped by four clips from the two directions of up and down in a state of being stored in the unit frame. Since the clips are formed of an elastic body, the clips can be easily attached and detached, and the respective parts of the polarizing conversion unit can also be easily attached and detached to and from the unit frame. In addition, these optical elements may be sequentially inserted from the side of one open surface.

77. 发明授权

US06199987B1 Optical device, and projection display device including the same 有权
标题翻译：光学装置和包括其的投影显示装置
公开(公告)号：US06199987B1
公开(公告)日：2001-03-13
申请号：US09247531
申请日：1999-02-10
申请人： Shinji Haba , Takeshi Takizawa
发明人： Shinji Haba , Takeshi Takizawa
IPC分类号： G03B2126
CPC分类号： H04N5/7416 , G02B27/283 , G02B27/285 , G02F1/133308 , G02F1/133526 , G02F1/133536 , G02F2001/133548 , G02F2001/13355 , G02F2201/46 , G03B21/26 , H04N9/3102
摘要： To increase the usage efficiency of the light of optical elements used in a projection display device, a polarizing conversion unit is provided. This polarizing conversion unit consists of a unit frame, two polarizing conversion element arrays, a light-shielding plate, a lens array, and clips. From the side of one open surface of the unit frame, the two polarizing conversion element arrays are inserted, and the light-shielding plate and the lens array are inserted from the side of the other open surface in this order. These optical elements are clamped by four clips from the two directions of up and down in a state of being stored in the unit frame. Since the clips are formed of an elastic body, the clips can be easily attached and detached, and the respective parts of the polarizing conversion unit can also be easily attached and detached to and from the unit frame. In addition, these optical elements may be sequentially inserted from the side of one open surface.
摘要翻译：为了提高投影显示装置中使用的光学元件的光的使用效率，提供了偏振转换单元。该偏振转换单元由单位框架，两个偏振转换元件阵列，遮光板，透镜阵列和夹子组成。从单元框架的一个开放表面的侧面插入两个偏振转换元件阵列，并且遮光板和透镜阵列依次从另一个开放面的侧面插入。这些光学元件在被存储在单元框架中的状态下被来自上下两个方向的四个夹子夹紧。由于夹子由弹性体形成，所以夹子可以容易地安装和拆卸，并且偏振转换单元的各个部分也可以容易地从单元框架拆卸。此外，这些光学元件可以从一个开放表面的一侧依次插入。

78. 发明授权

US6122028A Reflective liquid crystal device with polarizing beam splitter 失效
标题翻译：具有偏振分束器的反射型液晶装置
公开(公告)号：US6122028A
公开(公告)日：2000-09-19
申请号：US169769
申请日：1998-10-09
申请人： Sandra Gilmour , Martin David Tillin , Michael John Towler
发明人： Sandra Gilmour , Martin David Tillin , Michael John Towler
IPC分类号： G02F1/13 , G02B27/28 , G02F1/1335 , G02F1/13357 , G02F1/13363 , G02F1/139
CPC分类号： G02F1/13362 , G02F1/1393 , G02F1/13363 , G02F2001/13355 , G02F2203/02
摘要： A reflective liquid crystal device includes a polarising beam splitter, a polarisation preserving reflector and a retarder arrangement including at least two retarders. A first of the retarders is disposed between the beam splitter and the reflector, and a second of the retarders is disposed between the first retarder and the reflector, and at least one of the first and second retarder including a liquid crystal layer which is switchable between a dark device state and a bright device state. In the dark state, the retarder arrangement rotates the plane of polarisation of plane-polarised light directed by the beam splitter towards the reflector by substantially n.times.180.degree., where n is an integer, and in a bright device state the first retarder has a retardation of substantially .lambda./2 and the second retarder has a retardation of substantially .lambda./4.
摘要翻译：反射型液晶装置包括偏振分束器，偏振保留反射器和包括至少两个延迟器的延迟器装置。第一延迟器设置在分束器和反射器之间，第二缓速器设置在第一延迟器和反射器之间，并且第一和第二延迟器中的至少一个包括液晶层，其可在暗装置状态和亮装置状态。在黑暗状态下，延迟器装置将由分束器引导的平面偏振光的偏振平面向反射器旋转大致n×180°，其中n是整数，并且在明亮的器件状态下，第一延迟器具有基本上为λ/ 2，第二延迟器具有基本上λ/ 4的延迟。

79. 发明授权

US06078363A Image display apparatus 失效
标题翻译：图像显示装置
公开(公告)号：US06078363A
公开(公告)日：2000-06-20
申请号：US962277
申请日：1997-10-31
申请人： Takeshi Masuda , Takuji Yamatani
发明人： Takeshi Masuda , Takuji Yamatani
IPC分类号： G02F1/13 , G02B27/28 , G02F1/1335 , G02F1/13357 , G03B21/00 , H04N5/74 , G02F1/00
CPC分类号： G02F1/13362 , H04N5/7441 , G02F2001/133543 , G02F2001/13355
摘要： A projection-type image display apparatus, includes: an illumination unit; a polarization selecting and reflecting element which splits a light beam from the illumination unit into a first light beam and a second light beam having polarization states different from each other, reflects the first light beam to the illumination unit, and outputs the second light beam as linearly polarized light; a transmission-type liquid crystal display panel which controls a polarization state of the linearly polarized light and displays an image; a first polarization selecting element and a second polarization selecting element respectively provided on a light beam input side and a light beam output side of the transmission-type liquid crystal display panel; a projection element which projects the image displayed by the transmission-type liquid crystal display panel. A combination of the polarization selecting and reflecting element and the first polarization selecting element has a degree of polarization of at least about 99%, and at least one of the polarization selecting and reflecting element and the first polarization selecting element has a degree of polarization of less than about 99%.
摘要翻译：一种投影型图像显示装置，包括：照明单元; 将来自照明单元的光束分裂为具有彼此不同的偏振态的第一光束和第二光束的偏振选择和反射元件将第一光束反射到照明单元，并将第二光束作为线偏振光; 透射型液晶显示面板，其控制线偏振光的偏振状态并显示图像; 分别设置在透射型液晶显示面板的光束输入侧和光束输出侧的第一偏振选择元件和第二偏振选择元件; 投射由透射型液晶显示面板显示的图像的投影元件。偏振选择和反射元件和第一偏振选择元件的组合具有至少约99％的偏振度，并且偏振选择和反射元件和第一偏振选择元件中的至少一个具有至少约99％的偏振度小于约99％。

80. 发明授权

US6020944A Illumination device and liquid crystal apparatus including same 失效
标题翻译：照明装置和包括其的液晶装置
公开(公告)号：US6020944A
公开(公告)日：2000-02-01
申请号：US763631
申请日：1996-12-04
申请人： Hiroaki Hoshi
发明人： Hiroaki Hoshi
IPC分类号： G02B6/00 , F21V8/00 , G02B5/18 , G02B27/28 , G02F1/1335 , G02F1/13357
CPC分类号： G02B6/0038 , G02B27/28 , G02B6/0056 , G02B6/0055 , G02B6/0068 , G02F1/133536 , G02F1/13362 , G02F2001/13355
摘要： An illumination device is formed from a light-transmissive light guide member, and a light source disposed on a side of the light guide member to emit light to the light guide member. The light guide member is formed to include an anisotropic grating preferably at a boundary between an anisotropic member having a refractive index anisotropy and a substantially non-anisotropic member laminated on the anisotropic member. The anisotropic grating may be formed as a one-dimensionally arranged grating for causing selective diffraction of, e.g., an ordinary ray. As a result, the illumination device is caused to function as a planar light source emitting linearly polarized light of a uniform luminance distribution suitably used in combination with a transmission-type or reflection-type liquid crystal device to form a small-sized and thin liquid crystal apparatus.
摘要翻译：照明装置由透光导光构件形成，光源设置在导光构件的一侧以向导光构件发光。导光构件形成为包括各向异性光栅，优选地位于具有折射率各向异性的各向异性构件和层叠在各向异性构件上的基本上非各向异性构件之间的边界处。各向异性光栅可以形成为用于引起例如普通光线的选择性衍射的一维布置的光栅。结果，照明装置被用作发射与透射型或反射型液晶装置组合适当使用的均匀亮度分布的线性偏振光的平面光源，以形成小而薄的液体水晶仪器。

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