公开(公告)号：US08425042B2

公开(公告)日：2013-04-23

申请号：US12851969

申请日：2010-08-06

申请人： Curtis R. Hruska ,  David M. Shemo ,  Kim Leong Tan

发明人： Curtis R. Hruska ,  David M. Shemo ,  Kim Leong Tan

IPC分类号： G03B21/00

CPC分类号： G02B27/26 ,  G02B26/008 ,  G02B27/286

摘要： A multi-segment optical retarder that can be used with or within a single projector for creating 3D images. The multi-segment optical retarder is coupled to an actuator used to effect some predetermined linear, rotary, or oscillating movement of the multi-segment optical retarder such that a fast axis orientation of each segment is substantially constant relative to itself over time and for a given area of incidence.

摘要翻译： 可以与单个投影机一起使用或用于创建3D图像的多段光学延迟器。 多段光学延迟器耦合到用于实现多段光学延迟器的某些预定的线性，旋转或振荡运动的致动器，使得每个段的快速轴取向在时间上相对于其自身基本恒定，并且对于 给定发病面积。

公开(公告)号：US20090009668A1

公开(公告)日：2009-01-08

申请号：US12166988

申请日：2008-07-02

申请人： Kim Leong Tan ,  David M. Shemo

发明人： Kim Leong Tan ,  David M. Shemo

IPC分类号： G02F1/13 ,  G03H1/02

CPC分类号： G02B5/3016 ,  G02B5/1871 ,  G02B5/32 ,  G02F1/13342 ,  G02F1/133753 ,  G02F2203/07 ,  G03H2240/11 ,  G03H2240/23 ,  G03H2250/38 ,  G11B7/1353 ,  G11B7/13925 ,  G11B2007/0006

摘要： A polarization-selective diffractive optical element includes a liquid crystal polymer film supported by a substrate. The liquid crystal polymer film includes an array of pixels, each pixel encoded with a fixed liquid crystal director such that each liquid crystal director is aligned in a common plane perpendicular to the liquid crystal polymer film and provides a predetermined pattern of out-of-plane tilts. A size of the pixels in the array and the predetermined pattern are selected such that the liquid crystal polymer film forms a phase hologram for diffracting light polarized parallel to said common plane and a zeroth order diffraction grating for light polarized perpendicular to the said common plane. The non-etched and flat phase hologram is suitable for a wide range of applications.

摘要翻译： 偏振选择性衍射光学元件包括由衬底支撑的液晶聚合物膜。 液晶聚合物膜包括像素阵列，每个像素用固定的液晶指示器编码，使得每个液晶指向矢在垂直于液晶聚合物膜的公共平面中排列，并提供预定的平面外的图案 倾斜 选择阵列中的像素和预定图案的大小，使得液晶聚合物膜形成用于衍射平行于所述公共平面的光的相位全息图和用于垂直于所述公共平面偏振的光的零级衍射光栅。 非蚀刻和平面相位全息图适用于广泛的应用。

公开(公告)号：US20110027494A1

公开(公告)日：2011-02-03

申请号：US12852105

申请日：2010-08-06

申请人： Kim Leong TAN ,  David M. Shemo

发明人： Kim Leong TAN ,  David M. Shemo

IPC分类号： C08F2/48

CPC分类号： G02B5/3016 ,  B29D11/0074 ,  G02B5/1871 ,  G02B5/32 ,  G02F1/13342 ,  G02F1/133753 ,  G02F2203/07 ,  G03H1/22 ,  G03H2001/2276 ,  G03H2240/11 ,  G03H2240/23 ,  G03H2250/38 ,  G11B7/1353 ,  G11B7/13925 ,  G11B2007/0006

摘要： A method of fabricating an optical element including a liquid crystal layer having a spatially-varying tilt angle includes coating a substrate with a linearly photopolymerizable polymer layer, irradiating the linearly photopolymerizable polymer layer with linearly polarized ultra-violet light at a oblique angle, and coating a layer of liquid crystal material on a surface of the irradiated linearly photopolymerizable polymer layer. The liquid crystal material has a predetermined relationship between its tilt angle and a total dose of the linearly polarized ultra-violet light. The linearly photopolymerizable polymer layer is irradiated with at least one dose of linearly polarized ultra-violet light that is sufficient to induce formation of a plurality of discrete regions within the liquid crystal layer having a larger in-plane birefringence than an adjacent or surrounding region.

摘要翻译： 制造包括具有空间变化倾斜角的液晶层的光学元件的方法包括用线性可光聚合的聚合物层涂覆基板，以线性偏振的紫外线以倾斜的角度照射线性可光聚合的聚合物层， 在被照射线性可光聚合聚合物层的表面上的一层液晶材料。 液晶材料的倾斜角与线偏振紫外光的总剂量之间具有预定的关系。 线性可光聚合聚合物层被照射至少一种线性偏振紫外光，其量足以引起在相邻或周围区域内具有较大面内双折射的液晶层内形成多个离散区域。

公开(公告)号：US08643822B2

公开(公告)日：2014-02-04

申请号：US12852105

申请日：2010-08-06

申请人： Kim Leong Tan ,  David M. Shemo

发明人： Kim Leong Tan ,  David M. Shemo

IPC分类号： G02F1/13 ,  G02F1/1337

CPC分类号： G02B5/3016 ,  B29D11/0074 ,  G02B5/1871 ,  G02B5/32 ,  G02F1/13342 ,  G02F1/133753 ,  G02F2203/07 ,  G03H1/22 ,  G03H2001/2276 ,  G03H2240/11 ,  G03H2240/23 ,  G03H2250/38 ,  G11B7/1353 ,  G11B7/13925 ,  G11B2007/0006

摘要： A method of fabricating an optical element including a liquid crystal layer having a spatially-varying tilt angle includes coating a substrate with a linearly photopolymerizable polymer layer, irradiating the linearly photopolymerizable polymer layer with linearly polarized ultra-violet light at a oblique angle, and coating a layer of liquid crystal material on a surface of the irradiated linearly photopolymerizable polymer layer. The liquid crystal material has a predetermined relationship between its tilt angle and a total dose of the linearly polarized ultra-violet light. The linearly photopolymerizable polymer layer is irradiated with at least one dose of linearly polarized ultra-violet light that is sufficient to induce formation of a plurality of discrete regions within the liquid crystal layer having a larger in-plane birefringence than an adjacent or surrounding region.

摘要翻译： 制造包括具有空间变化倾斜角的液晶层的光学元件的方法包括用线性可光聚合的聚合物层涂覆基板，以线性偏振的紫外线以倾斜的角度照射线性可光聚合的聚合物层， 在被照射线性可光聚合聚合物层的表面上的一层液晶材料。 液晶材料的倾斜角与线偏振紫外光的总剂量之间具有预定的关系。 线性可光聚合聚合物层被照射至少一种线性偏振紫外光，其量足以引起在相邻或周围区域内具有较大面内双折射的液晶层内形成多个离散区域。

公开(公告)号：US08237876B2

公开(公告)日：2012-08-07

申请号：US11419872

申请日：2006-05-23

申请人： Kim Leong Tan ,  Brett J. Bryars ,  Karen Denise Hendrix ,  David M. Shemo ,  Thomas Mayer

发明人： Kim Leong Tan ,  Brett J. Bryars ,  Karen Denise Hendrix ,  David M. Shemo ,  Thomas Mayer

IPC分类号： G02F1/1335

CPC分类号： H04N9/3167 ,  G02B5/3083 ,  G02F1/133632 ,  G02F1/133634 ,  G02F1/136277 ,  G02F1/1393 ,  G02F2203/02 ,  H04N9/3105

摘要： A C-plate compensator is disclosed for compensating the residual A-plate and C-plate retardance of a reflective liquid crystal on silicon (LCoS) display or a transmissive liquid crystal (LC) display in a projection display system. The C-plate incorporates a form-birefringent coating, whose retardance magnitude can be adjusted by tilting with respect to the display panel (X-Y) plane. The tilted plate is rotated about the Z-axis by a prescribed amount from the slow axis of the display panel. Criteria are described for choosing the tilt and rotation angles such that the contrast of the display system produced by the compensated panel is optimized.

摘要翻译： 公开了用于补偿投影显示系统中的硅（LCoS）显示器或透射型液晶（LC）显示器上的反射液晶的残留A板和C板延迟的C板补偿器。 C板包含双折射形式的涂层，其延迟大小可以通过相对于显示面板（X-Y）平面倾斜来调节。 倾斜板从显示面板的慢轴绕Z轴旋转规定量。 描述了用于选择倾斜和旋转角度的标准，使得由补偿面板产生的显示系统的对比度被优化。

公开(公告)号：US07626661B2

公开(公告)日：2009-12-01

申请号：US11006379

申请日：2004-12-07

申请人： Jerry Zieba ,  Thomas Mayer ,  David M. Shemo ,  Markus Duelli ,  Kim Leong Tan ,  Karen Denise Hendrix ,  Klaus Schmitt

发明人： Jerry Zieba ,  Thomas Mayer ,  David M. Shemo ,  Markus Duelli ,  Kim Leong Tan ,  Karen Denise Hendrix ,  Klaus Schmitt

IPC分类号： G02F1/1335

CPC分类号： G02B5/3083 ,  G02B5/3016 ,  G02F1/133634 ,  G02F2201/38

摘要： The invention relates to a polarization compensating element (PCE) for a liquid crystal, e.g. liquid crystal on silicon (LCoS), display system manufactured using a linearly photo-polymerizable polymer (LPP) for orienting a photo-polymerizable liquid crystal polymer (LCP) film. To decrease the reflection, polarization conversion, and interference events in an LPP/LCP assembly the ΔN birefringence value of the LCP material is minimized. Dielectric coatings are added at various locations throughout the assembly for minimizing the amount of reflection, polarization conversion, and interference effects and for suppressing spatial retardance ripples.

摘要翻译： 本发明涉及一种用于液晶的偏振补偿元件（PCE），例如， 硅液晶（LCoS），使用用于取向光聚合性液晶聚合物（LCP）膜的线性光聚合性聚合物（LPP）制造的显示系统。 为了减少LPP / LCP组件中的反射，偏振转换和干涉事件，LCP材料的DeltaN双折射值被最小化。 在整个组件中的各个位置添加介电涂层，以最小化反射量，极化转换和干涉效应以及抑制空间延迟波纹。

公开(公告)号：US20100066929A1

公开(公告)日：2010-03-18

申请号：US12556694

申请日：2009-09-10

申请人： David M. Shemo ,  Scott McEldowney

发明人： David M. Shemo ,  Scott McEldowney

IPC分类号： G02F1/1335 ,  G03F7/20

CPC分类号： G02B5/3083

摘要： A micro-array of optical vortex retarders is provided by forming an alignment layer having a plurality of discrete alignment patches with different orientations. A layer of birefringent material, including one of a liquid crystal and a liquid crystal polymer precursor material, is provided adjacent to the alignment layer. The aligning orientation and position of each discrete alignment patch in the plurality of discrete alignment patches is selected to induce the layer of birefringent material to form at least one optical vortex retarder adjacent to a substantially non-oriented region of the alignment layer.

摘要翻译： 通过形成具有不同取向的多个离散对准贴片的取向层来提供光学涡旋延迟器的微阵列。 在取向层附近设置包括液晶和液晶聚合物前体材料之一的双折射材料层。 选择多个离散对准贴片中的每个离散对准贴片的对准方向和位置以诱导双折射材料层，以形成与取向层的基本上非取向区域相邻的至少一个光学涡旋延迟器。

公开(公告)号：US06355075B1

公开(公告)日：2002-03-12

申请号：US09502336

申请日：2000-02-11

申请人： Katsuyoshi Ina ,  W. Scott Rader ,  David M. Shemo ,  Tetsuji Hori

发明人： Katsuyoshi Ina ,  W. Scott Rader ,  David M. Shemo ,  Tetsuji Hori

IPC分类号： C09K314

CPC分类号： C09G1/02

摘要： A polishing composition comprising an abrasive, an anticorrosive, an oxidizing agent, an acid, a pH regulator and water and having a pH within a range of from 2 to 5, wherein the abrasive is colloidal silica or fumed silica, and its primary particle size is at most 20 nm.

摘要翻译： 一种抛光组合物，其包含研磨剂，防腐蚀剂，氧化剂，酸，pH调节剂和水，并且pH在2至5的范围内，其中所述研磨剂是胶体二氧化硅或热解法二氧化硅，其初级粒度 至多为20nm。

公开(公告)号：US08373810B2

公开(公告)日：2013-02-12

申请号：US12556694

申请日：2009-09-10

申请人： David M. Shemo ,  Scott McEldowney

发明人： David M. Shemo ,  Scott McEldowney

IPC分类号： G02F1/1335 ,  G02F1/135 ,  G02F1/1337 ,  G02F1/13 ,  H01L21/00

CPC分类号： G02B5/3083

摘要： A micro-array of optical vortex retarders is provided by forming an alignment layer having a plurality of discrete alignment patches with different orientations. A layer of birefringent material, including one of a liquid crystal and a liquid crystal polymer precursor material, is provided adjacent to the alignment layer. The aligning orientation and position of each discrete alignment patch in the plurality of discrete alignment patches is selected to induce the layer of birefringent material to form at least one optical vortex retarder adjacent to a substantially non-oriented region of the alignment layer.

摘要翻译： 通过形成具有不同取向的多个离散对准贴片的取向层来提供光学涡旋延迟器的微阵列。 在取向层附近设置包括液晶和液晶聚合物前体材料之一的双折射材料层。 选择多个离散对准贴片中的每个离散对准贴片的对准方向和位置以诱导双折射材料层，以形成与取向层的基本上非取向区域相邻的至少一个光学涡旋延迟器。

公开(公告)号：US20090122402A1

公开(公告)日：2009-05-14

申请号：US12260840

申请日：2008-10-29

申请人： David M. Shemo ,  Jerry M. Zieba

发明人： David M. Shemo ,  Jerry M. Zieba

IPC分类号： G02B5/30 ,  G02B1/08

CPC分类号： G02B27/28 ,  G02B5/3025 ,  G02B5/3083 ,  G02F2413/09

摘要： An achromatic converter of spatial distribution of polarization from a first to a second pre-defined distribution of polarization is described. The converter comprises a plurality of photo-aligned quarter-wave or half-wave liquid crystal polymer layers, wherein the patterns of alignment of the layers are correlated with each other so as to make polarization conversion achromatic. Achromatic polarization vortices can be formed. The polarization conversion efficiencies over 97% have been demonstrated over most of the visible spectrum of light. The polarization converters can be used in imaging, photolithography, optical tweezers, micromachining, and other applications.

摘要翻译： 描述了从第一至第二预定极化分布的偏振空间分布的消色差转换器。 该转换器包括多个光取向四分之一波长或半波长的液晶聚合物层，其中层的排列图案彼此相关，以便使偏振变换无色。 消色差极化旋涡可以形成。 在大多数可见光谱中已经证实了超过97％的偏振转换效率。 偏振转换器可用于成像，光刻，光学镊子，微加工和其他应用。