公开(公告)号：US07151870B2

公开(公告)日：2006-12-19

申请号：US10948856

申请日：2004-09-23

申请人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

发明人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

IPC分类号： G02B6/27 ,  G02B6/42 ,  G02F1/295

CPC分类号： G02F1/292 ,  G02B6/32 ,  G02B6/351 ,  G02B6/3556 ,  G02F1/1392

摘要： An optical fiber coupling, for example, an optical switch, for coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face of the optical waveguide. An adaptive coupler positioned in the optical path is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide.

摘要翻译： 用于将光源与光波导的光接收端面耦合的光纤耦合器，例如光开关包括用于将从光源发射的光束聚焦在光接收点上的焦点处的透镜 光波导的端面。 位于光路中的自适应耦合器响应于光束转向控制信号，用于相对于光波导的光接收端面转向和对准焦点。

公开(公告)号：US06832028B2

公开(公告)日：2004-12-14

申请号：US10267282

申请日：2002-10-08

申请人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

发明人： Dong-Feng Gu ,  Donald B. Taber ,  Bruce K. Winker

IPC分类号： G02B626

CPC分类号： G02F1/292 ,  G02B6/32 ,  G02B6/351 ,  G02B6/3556 ,  G02F1/1392

摘要： An apparatus for optically coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face of the optical waveguide. An adaptive coupler, positioned in the optical path, is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide. In one form, the adaptive coupler comprises a pair of transparent substrates having confronting, parallel inner faces, the inner face of one of the pair of substrates carrying a beam intercepting, optically transparent, constant potential electrode and the inner face of the other of the pair of substrates carrying an electrically resistive, beam intercepting, optically transparent film. A pair of spaced apart electrodes in electrical contact with the film apply a linear voltage gradient along the film. An electro-optical phase shifting medium is disposed between the confronting inner faces of the substrates. The application of selected voltages to the electrodes creates a linear voltage gradient along the aforementioned film on the inner face of the one substrate resulting in a linearly varying electric field between that film and the constant potential electrode creating a corresponding linear variation in the refractive index of the liquid crystal medium and a linear wavefront tilt in the intercepting optical beam.

摘要翻译： 用于将光源与光波导的光接收端面光学耦合的装置包括用于将从光源发射的光束聚焦在光波导的光接收端面上的焦点处的透镜。 位于光路中的自适应耦合器响应于光束转向控制信号，用于相对于光波导的光接收端面转向和对准焦点。 在一种形式中，自适应耦合器包括一对具有相对的平行内表面的透明基板，一对基板中的一个基板的内表面承载光束拦截，光学透明的恒定电位电极，另一个的内表面 一对基板承载电阻，光束截取的光学透明膜。 与膜电接触的一对间隔开的电极沿膜施加线性电压梯度。 电光相移介质设置在基板的相对的内表面之间。 将选择的电压施加到电极在一个衬底的内表面上沿着上述膜产生线性电压梯度，导致该膜和恒电位电极之间线性变化的电场产生相应的线性变化 液晶介质和截取光束中的线性波前倾斜。

公开(公告)号：US5731886A

公开(公告)日：1998-03-24

申请号：US535799

申请日：1995-09-28

申请人： Donald B. Taber ,  William J. Gunning, III

发明人： Donald B. Taber ,  William J. Gunning, III

IPC分类号： G02B5/30 ,  G02F1/1335 ,  G02F1/13357

CPC分类号： G02F1/13362 ,  G02B5/3016 ,  G02F1/133536 ,  G02F2001/133543

摘要： An optical device for transforming light and an associated liquid crystal display is disclosed. The device includes a layer of cholesteric material of the type which transmits light having a first circular helicity and reflects light having a second circular helicity. A quarter-wave plate positioned on a first side of the layer of cholesteric material converts the transmitted light having the first circular helicity into linearly polarized light. A compensator including a positively birefringent C-plate layer is disposed between the layer of cholesteric material and the quarter-wave plate. The compensator reduces undesirable phase effects in the transmitted light introduced by the layer of cholesteric material. The disclosed LCD employs the optical device to increase backlighting efficiency while improving field of view and chromaticity of the display.

摘要翻译： 公开了一种用于变换光的光学装置和相关联的液晶显示器。 该装置包括透过具有第一圆形螺旋度的光并且反射具有第二圆形螺旋度的光的类型的胆甾型材料层。 位于胆甾型材料层的第一侧上的四分之一波片将具有第一圆形螺旋度的透射光转换成线偏振光。 包括正双折射C板层的补偿器设置在胆甾型材料层和四分之一波片之间。 补偿器减少由胆甾型材料层引入的透射光中的不期望的相位效应。 所公开的LCD采用光学装置来提高背光效率，同时改善显示器的视野和色度。

公开(公告)号：US5638197A

公开(公告)日：1997-06-10

申请号：US313510

申请日：1994-09-30

申请人： William J. Gunning, III ,  Bruce K. Winker ,  Donald B. Taber ,  Paul H. Kobrin ,  James C. Beedy ,  John P. Eblen, Jr.

发明人： William J. Gunning, III ,  Bruce K. Winker ,  Donald B. Taber ,  Paul H. Kobrin ,  James C. Beedy ,  John P. Eblen, Jr.

IPC分类号： G02F1/1333 ,  C23C14/22 ,  G02B5/30 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337

CPC分类号： C23C14/226 ,  G02B5/3083 ,  G02F1/133632 ,  G02F1/133636 ,  G02F1/133634 ,  G02F2413/105

摘要： An optical O-plate compensation device, in accordance with the invention, uses an inorganic thin film which is grown by physical vapor deposition at oblique incidence. The resulting thin film exhibits a biaxial form birefringence and performs, in a liquid crystal display (LCD), in a similar manner to uniaxial films with its extraordinary axis oriented obliquely at about 45.degree. with respect to the surface of the film. The invention makes possible a significant improvement in the gray scale properties and contrast ratios of liquid crystal displays (LCDs) over a wide range of viewing angles.

摘要翻译： 根据本发明的光学O板补偿装置使用以倾斜入射物理气相沉积生长的无机薄膜。 所得到的薄膜呈现双轴形式的双折射，并且在液晶显示器（LCD）中以与其相对于膜表面倾斜约45°的非常轴的单轴膜相似的方式进行。 本发明使得可以在宽范围的视角上显着提高液晶显示器（LCD）的灰度特性和对比度。

公开(公告)号：US08081291B2

公开(公告)日：2011-12-20

申请号：US11653000

申请日：2007-01-12

申请人： Scott P. Campbell ,  Bing Wen ,  Milind Mahajan ,  Bruce K. Winker ,  Donald B. Taber

发明人： Scott P. Campbell ,  Bing Wen ,  Milind Mahajan ,  Bruce K. Winker ,  Donald B. Taber

IPC分类号： G02F1/13

CPC分类号： G02B27/288 ,  G02B5/3083 ,  G02B15/14

摘要： A fast, electro-optically switched zoom lens system operates across a broad spectral and thermal range while correcting for birefringent aberrations by means of a polarizing system that preferably includes polarizing reticles.

摘要翻译： 快速的电光转换变焦透镜系统在宽的光谱和热范围内操作，同时通过优选包括偏振光栅的偏振系统来校正双折射像差。

公开(公告)号：US06671019B1

公开(公告)日：2003-12-30

申请号：US09439039

申请日：1999-11-12

申请人： Rolfe G. Petschek ,  Donald B. Taber

发明人： Rolfe G. Petschek ,  Donald B. Taber

IPC分类号： G02F11337

CPC分类号： G02F1/134336 ,  G02F1/133707 ,  G02F2001/134345

摘要： A liquid crystal cell in which the electrodes are patterned with small scale non-conducting gaps so as to efficiently control the number, size and location of liquid crystal domains within which the liquid crystal exhibits an azimuthal orientation with predominantly the same sign and direction in a field-on condition. By patterning one or both of the electrodes with small scale non-conducting gaps, having widths less than about 2.5 times the cell gap t, that are disposed predominantly within the liquid crystal domains, or a combination of such gaps with gaps disposed primarily along the domain boundaries, one not only can obtain excellent control of the nature of the liquid crystal domains, but also the responsiveness of the cell.

摘要翻译： 一种液晶单元，其中电极用小规模非导电间隙图案化，以便有效地控制液晶畴的数量，尺寸和位置，其中液晶呈现方位角取向，主要具有相同的符号和方向 场上条件。 通过将具有小于电池间隙t的宽度小于电池间隙t的宽度的小规模非导电间隙图案化一个或两个电极，主要位于液晶畴内，或者这些间隙与主要沿着 域边界，不仅可以获得对液晶畴性质的良好控制，而且可以获得细胞的响应性。

公开(公告)号：US5557434A

公开(公告)日：1996-09-17

申请号：US313477

申请日：1994-09-30

申请人： Bruce K. Winker ,  Ragini Saxena ,  Donald B. Taber ,  Leonard G. Hale

发明人： Bruce K. Winker ,  Ragini Saxena ,  Donald B. Taber ,  Leonard G. Hale

IPC分类号： G02B5/30 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13363 ,  C09K19/02

CPC分类号： G02F1/133632

摘要： An improved normally white super-twist nematic (OMI) liquid crystal display exhibits a dramatically improved horizontal viewing angle as compared to conventional OMI displays. The display's liquid crystal cell has a twist angle greater than about 180.degree. and less than about 270.degree., preferably between 220.degree. and 250.degree., and a phase retardation of between 500 nanometers (nm) and 850 nm. The improved display includes a novel compensator which incorporates, as one of its compensation elements, a positively birefringent oblique compensator layer (referred to as an O-plate compensator layer). Additionally, a positively birefringent A-plate compensator layer and one or more negatively birefringent C-plate compensator layers may be used in the display.

摘要翻译： 与传统的OMI显示器相比，改进的通常白色超扭曲向列（OMI）液晶显示器显示出显着改善的水平视角。 显示器的液晶单元的扭转角大于约180度且小于约270度，优选在220度至250度之间，相位延迟在500纳米（nm）和850nm之间。 改进的显示器包括一种新的补偿器，其包括作为其补偿元件之一的正双折射斜补偿器层（称为O板补偿器层）。 另外，在显示器中可以使用正双折射A板补偿层和一个或多个负双折射C板补偿层。

公开(公告)号：US5986733A

公开(公告)日：1999-11-16

申请号：US56265

申请日：1993-04-30

申请人： Bruce K. Winker ,  William J. Gunning, III ,  Donald B. Taber

发明人： Bruce K. Winker ,  William J. Gunning, III ,  Donald B. Taber

IPC分类号： G02F1/1335 ,  G02F1/13363 ,  G02F1/139

CPC分类号： G02F1/133632 ,  G02F1/1396 ,  G02F1/1397 ,  G02F2413/14

摘要： A normally white liquid crystal display includes polarizer and analyzer layers having perpendicular absorbing axes. A liquid crystal layer is disposed between the polarizer layer and the analyzer layer, with its director exhibiting an azimuthal twist through the layer. First and second electrodes are proximate to first and second major surfaces of the liquid crystal layer. A first negatively birefringent compensator layer, oriented with its optical axis substantially parallel to the average direction of the optical axis within a central, nominally homeotropic region of the liquid crystal layer in its driven state, is disposed between the polarizer layer and the liquid crystal layer. A second negatively birefringent compensator layer, with a birefringence substantially the same as the birefringence of the first compensator layer and oriented with its optical axis substantially parallel to the optical axis of the first compensator layer, is disposed between the analyzer layer and the liquid crystal layer.

摘要翻译： 正常白色液晶显示器包括具有垂直吸收轴的偏振器和分析器层。 液晶层设置在偏振器层和分析器层之间，其导向器表现出通过该层的方位角扭转。 第一和第二电极靠近液晶层的第一和第二主表面。 第一负双折射补偿层，其光轴基本上平行于处于其驱动状态的液晶层的中心名义上的垂直方向的光轴的平均方向定向在偏振器层和液晶层之间 。 第二负双折射补偿层具有基本上与第一补偿层的双折射基本相同并且其光轴基本上平行于第一补偿层的光轴的双折射补偿层设置在分析器层和液晶层之间 。

公开(公告)号：US5504603A

公开(公告)日：1996-04-02

申请号：US223251

申请日：1994-04-04

申请人： Bruce K. Winker ,  William J. Gunning, III ,  Donald B. Taber ,  Leonard G. Hale

发明人： Bruce K. Winker ,  William J. Gunning, III ,  Donald B. Taber ,  Leonard G. Hale

IPC分类号： G02F1/1333 ,  C23C14/22 ,  G02B5/30 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337

CPC分类号： C23C14/226 ,  G02B5/3083 ,  G02F1/133632 ,  G02F1/133636 ,  G02F1/133634 ,  G02F2413/105

摘要： A liquid crystal display for viewing at various angles with respect to a normal axis perpendicular to the display includes a polarizer layer having an absorbing axis, an analyzer layer having an absorbing axis substantially perpendicular to the absorbing axis of the polarizer layer, a liquid crystal layer disposed between the polarizer layer and the analyzer layer and having a director exhibiting an azimuthal twist through the layer with respect to the normal axis, a first electrode proximate to a first major surface of the liquid crystal layer, a second electrode proximate to a second major surface of the liquid crystal layer, the first and second electrodes being adapted to apply a voltage across the liquid crystal layer when the electrodes are connected to a source of electrical potential, and a compensator, including a positively birefringent O-plate compensator layer disposed between the polarizer layer and the analyzer layer with its principal symmetry axis oriented at a substantially oblique angle with respect to the normal axis.

摘要翻译： 相对于垂直于显示器的法线轴以各种角度观看的液晶显示器包括具有吸收轴的偏振层，具有基本上垂直于偏振层的吸收轴的吸收轴的分析器层，液晶层 设置在所述偏振器层和所述分析器层之间并且具有相对于所述法线轴通过所述层的方位角扭曲的导向件，靠近所述液晶层的第一主表面的第一电极，靠近所述第二主体的第二电极 所述第一和第二电极适于在所述电极连接到电位源时在所述液晶层上施加电压;以及补偿器，所述补偿器包括位于所述液晶层之间的正双折射O板补偿层 偏振器层和分析器层，其主对称轴定向为实心 相对于法线的倾斜角度。

公开(公告)号：US06239853B1

公开(公告)日：2001-05-29

申请号：US09410824

申请日：1999-10-01

申请人： Bruce K. Winker ,  Donald B. Taber

发明人： Bruce K. Winker ,  Donald B. Taber

IPC分类号： G02F11337

CPC分类号： G02F1/1323 ,  G02F1/13363 ,  G02F2001/133638 ,  G02F2413/02 ,  G02F2413/09

摘要： An assembly for restricting the angle of vision of an image emitted from an LCD screen comprising a linearly parallel arrangement of two polarizing films with at least two waveplates there between. The transmission planes of the polarizing films are at an angle, preferrably 90° to each other. At least two parallel waveplates are positioned between, the polarizing films. Each waveplate has parallel transmitting regions alternating between birefringent and isotropic regions. The waveplates are positioned in a spaced apart relationship to each other such that substantially orthogonal light passing through the first polarizing screen and one of the birefringent or isotropic alternating transmitting regions of the first waveplate will pass through the other of the alternating striped transmitting regions of the second waveplate. Light so transmitted will then pass through the second polarizing film and be viewable. At least a portion of the horizontal components of non-orthogonal light incident on the waveplate assembly will not pass through the second polarizing film This assembly results in a angle of vision narrower than from the LCD screen.

摘要翻译： 一种用于限制从LCD屏幕发射的图像的视角的组件，包括两个偏振膜的线性平行布置，其间具有至少两个波片。 偏振膜的透射平面成一角度，最好彼此成90°。 至少两个平行的波片位于偏振膜之间。 每个波片具有在双折射和各向同性区域之间交替的平行透射区域。 波片彼此间隔开地定位，使得通过第一偏振屏幕的基本上正交的光和第一波片的双折射或各向同性交替透射区域中的一个将穿过第一波片的交替条纹透射区域中的另一个， 第二波片。 然后透过的光将通过第二偏光膜并且是可见的。 入射在波片组件上的非正交光的水平分量的至少一部分将不会通过第二偏光膜。该组件导致视角比液晶显示屏窄。