公开(公告)号：US6078374A

公开(公告)日：2000-06-20

申请号：US215208

申请日：1998-12-18

申请人： Gary D. Sharp ,  Kristina M. Johnson

发明人： Gary D. Sharp ,  Kristina M. Johnson

IPC分类号： C09K19/52 ,  G02F1/1335

CPC分类号： C09K19/52 ,  G02F1/1335

摘要： This invention provides achromatic compound retarders, achromatic polarization switches, and achromatic shutters using the liquid crystal compound retarders. It further provides achromatic variable retardance smectic liquid crystal retarders. The achromatic compound retarder of this invention comprises a central liquid crystal retarder unit and two outer retarders positioned in series with and on either side of the liquid crystal retarder unit. The liquid crystal retarder unit comprises either (1) a rotatable smectic liquid crystal half-wave retarder or (2) first and second liquid crystal variable retarders having retardance switchable between zero and half-wave. The outer retarders have substantially the same retardance and orientation. Design equations determine the retardance of the outer retarders and their orientation relative to the central retarder to obtain a particular achromatic retardance for the compound structure.

摘要翻译： 本发明提供了使用液晶复合阻滞剂的消色差化合物延迟剂，消色差极化开关和消色差百叶窗。 进一步提供消色差可延迟近晶型液晶延迟器。 本发明的消色差复合缓凝剂包括中央液晶延迟器单元和两个位于液晶延迟器单元两端串联连接的外缓速器。 液晶延迟器单元包括（1）可旋转的近晶液晶半波延迟器或（2）可在0和1/2波之间切换的第一和第二液晶可变延迟器。 外延迟器具有基本相同的延迟和取向。 设计方程式确定了外部缓凝剂的延迟性及其相对于中心缓凝剂的取向，以获得化合物结构的特定的消色差延迟。

公开(公告)号：US5999240A

公开(公告)日：1999-12-07

申请号：US853461

申请日：1997-05-09

申请人： Gary D. Sharp ,  Kristina M. Johnson

发明人： Gary D. Sharp ,  Kristina M. Johnson

IPC分类号： G02B5/30 ,  G02B27/28 ,  G02F1/01 ,  G02F1/03 ,  G02F1/09 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13363 ,  G02F1/1347 ,  G02F1/23 ,  H04N5/66 ,  H04N5/74 ,  H04N9/31 ,  G02F1/133

CPC分类号： H04N9/3111 ,  G02B27/288 ,  G02B5/3083 ,  G02F1/0136 ,  G02F1/1336 ,  G02F1/13363 ,  G02F1/13473 ,  G02F1/23 ,  H04N5/66 ,  H04N9/3126 ,  H04N9/3167 ,  G02F1/0322 ,  G02F1/09 ,  G02F1/133533 ,  G02F1/133536 ,  G02F2001/133543 ,  G02F2001/133638 ,  G02F2413/04 ,  G02F2413/08 ,  H04N5/7441

摘要： A retarder stack for transforming at least partially polarized light includes a first retarder and a second retarder. The first retarder has a first retardance and a first orientation and the second retarder has a second retardance and a second orientation both orientations with respect to the partially polarized light. The first retardance, first orientation, second retardance, and second orientation can be arranged to yield the desired polarization transformed light which includes a first spectrum and a second spectrum. The polarization of the first spectrum and the polarization of the second spectrum can be made orthogonal to each other. The polarizations can be linear or elliptical. If the polarization transformed light is linear, the directions of polarizations are different and in one case can be made perpendicular. If the polarization of the polarization transformed light is elliptical, then the polarizations are different and in on case can be made orthogonal in the general sense of orthogonality of polarization states.

摘要翻译： 用于变换至少部分偏振光的延迟器叠层包括第一延迟器和第二延迟器。 第一延迟器具有第一延迟和第一取向，并且第二延迟器具有相对于部分偏振光的取向的第二延迟和第二取向。 第一延迟，第一取向，第二延迟和第二取向可以被布置成产生包括第一光谱和第二光谱的期望的偏振变换光。 可以使第一光谱的极化和第二光谱的极化彼此正交。 极化可以是线性或椭圆形。 如果偏振变换的光线是线性的，则极化方向是不同的，在一种情况下可以是垂直的。 如果偏振变换光的极化是椭圆形的，那么极化是不同的，并且在极化状态的正交性的一般意义上可以使其正交。

公开(公告)号：US5528393A

公开(公告)日：1996-06-18

申请号：US275006

申请日：1994-07-12

申请人： Gary D. Sharp ,  Kristina M. Johnson

发明人： Gary D. Sharp ,  Kristina M. Johnson

IPC分类号： G02F1/13363 ,  G02F1/1337 ,  G02F1/1347 ,  G02F1/135 ,  G02F1/141 ,  G02F1/21 ,  G02F1/33 ,  G02F1/1335 ,  C09K19/02 ,  G02F1/03

CPC分类号： G02F1/141 ,  G02F1/13473 ,  G02F1/135 ,  G02F1/216 ,  G02F2001/133638 ,  G02F2001/133738 ,  G02F2001/133742 ,  G02F2203/05 ,  G02F2203/055 ,  G02F2203/50

摘要： This invention provides split-element liquid crystal polarization interference filters in wide-field, bandpass, cut-on, cut-off and notch filter embodiments. The split-element filters of this invention comprise a polarization interference stage defined by a pair of polarizers. Disposed within the stage are a center retarder, and first and a second split-element retarder, the split-element retarders having equal retardances and positioned in series with and on either side of the center retarder. The retarders can be liquid crystal variable retarders or can be fixed retarders used in combination with liquid crystal retarders. Double split-element filters in passive and tunable embodiments are provided comprising, within a polarization interference stage, a center retarder, an inside pair of split-element retarders and an outside pair of split-element retarders.

公开(公告)号：US5243455A

公开(公告)日：1993-09-07

申请号：US884644

申请日：1992-05-15

申请人： Kristina M. Johnson ,  Gary D. Sharp

发明人： Kristina M. Johnson ,  Gary D. Sharp

IPC分类号： G02F1/1347 ,  G02F1/141 ,  G02F1/21

CPC分类号： G02F1/141 ,  G02F1/13473 ,  G02F1/216 ,  G02F2203/055

摘要： Discretely and continuously tunable single and multiple-stage polarization interference filters employing chiral smectic liquid crystal cells as electronically rotatable retarders are provided. Discretely tunable filters of this invention include those which employ bistable surface-stabilized ferroelectric liquid crystal cells. Continuously tunable filters of this invention include those that employ chiral smectic A ferroelectric liquid crystal cells. Single stage filters include fixed birefringent elements in combination with chiral smectic liquid crystal cells and multiple stage filters can include only chiral smectic liquid crystal cells or can include chiral smectic liquid crystal cells in combination with fixed birefringent elements. Blocking filters useful for color generation and color displays are also provided. The FLC filters provided can be temporally multiplexed.

摘要翻译： 提供了使用手性近晶液晶单元作为电子可逆延迟器的离散且连续可调的单级和多级偏振干涉滤光片。 本发明的离散可调滤波器包括采用双稳态表面稳定铁电液晶单元的滤波器。 本发明的连续可调滤波器包括采用手性近晶A铁电液晶单元的滤波器。 单级过滤器包括与手性近晶液晶单元组合的固定双折射元件，并且多级过滤器可以仅包括手性近晶液晶单元，或者可以包括与固定双折射元件组合的手性近晶液晶单元。 还提供了用于颜色生成和彩色显示的阻挡滤光片。 提供的FLC滤波器可以进行时间复用。

公开(公告)号：US06707516B1

公开(公告)日：2004-03-16

申请号：US09165127

申请日：1998-10-02

申请人： Kristina M. Johnson ,  Gary D. Sharp

发明人： Kristina M. Johnson ,  Gary D. Sharp

IPC分类号： G02F11335

CPC分类号： H04N9/3126 ,  G02B27/288 ,  G02F1/0136 ,  G02F1/0322 ,  G02F1/09 ,  G02F1/133533 ,  G02F1/133536 ,  G02F1/13363 ,  G02F1/13473 ,  G02F1/23 ,  G02F2001/133543 ,  G02F2001/133638 ,  G02F2413/04 ,  H04N5/66 ,  H04N5/7441 ,  H04N9/3111 ,  H04N9/3167

摘要： The present invention provides a single-panel field-sequential full color display systems that are less complex, smaller in size and less costly than prior additive split-path color systems, while exhibiting higher light output, greater flexibility and greater reliability than prior single-panel field-sequential systems. In the first preferred embodiment, the display system includes a “frame buffer” style spatial light modulator, in which a frame buffer pixel circuit is integrated into the spatial light modulator. The display system of the present invention also preferably includes on opto-electronic color sequencer which allows for the electronic control of the transmission of additive primary colors.

摘要翻译： 本发明提供了一种比现有的添加剂分路通道彩色系统更复杂，尺寸更小，成本更低的单面现场全彩色显示系统，同时具有比现有单路彩色显示器更高的光输出，更大的灵活性和更高的可靠性， 面板现场顺序系统。 在第一优选实施例中，显示系统包括“帧缓冲”型空间光调制器，其中帧缓冲器像素电路被集成到空间光调制器中。 本发明的显示系统还优选地包括在允许电子控制添加剂原色的透射的光电色谱仪上。

公开(公告)号：US6141069A

公开(公告)日：2000-10-31

申请号：US851521

申请日：1997-05-05

申请人： Gary D. Sharp ,  Kristina M. Johnson ,  Jay E. Stockley

发明人： Gary D. Sharp ,  Kristina M. Johnson ,  Jay E. Stockley

IPC分类号： G02B5/30 ,  G02F1/1347 ,  G02F1/139 ,  G02F1/141 ,  G02F1/1335

CPC分类号： G02F1/1418 ,  G02B5/3016 ,  G02F1/13473 ,  G02F1/141 ,  G02F2201/343

摘要： This invention provides a phase modulator comprising an electro-optically rotatable smectic liquid crystal half-wave retarder in combination with a cholesteric liquid crystal circular polarizer. Rotation of the half-wave retarder varies the phase delay of the modulator. A polarizing interferometer is provided utilizing the phase modulator of this invention in combination with a second cholesteric circular polarizer and a linear polarizer. A tunable Fabry-Perot resonator which does not require ordinary mirrors is provided utilizing the phase modulator of this invention in combination with a second cholesteric circular polarizer.

摘要翻译： 本发明提供了一种相位调制器，其包括与胆甾型液晶圆偏振器组合的电光可旋转的近晶液晶半波延迟器。 半波延迟器的旋转会改变调制器的相位延迟。 使用本发明的相位调制器与第二胆甾型圆偏振器和线性偏振器组合来提供偏振干涉仪。 利用本发明的相位调制器与第二胆甾型圆偏振器组合，提供了不需要普通反射镜的可调法布里 - 珀罗谐振器。

公开(公告)号：US5132826A

公开(公告)日：1992-07-21

申请号：US522215

申请日：1990-05-11

申请人： Kristina M. Johnson ,  Gary D. Sharp

发明人： Kristina M. Johnson ,  Gary D. Sharp

IPC分类号： G02F1/1347 ,  G02F1/141

CPC分类号： G02F1/141 ,  G02F1/13473 ,  G02F2203/055

摘要： Discretely and continuously tunable filers emplying FLC cells are provided. Exemplary discretely tunable filters employ bistable smectic C* FLC cells. Exemplary continuously tunable filters employ smectic A* FLC cells. Single or multiple stage filters are provided. Blocking filters useful for color generation are also provided. The FLC filters provided can be temporally multiplexed.

摘要翻译： 提供了应用FLC细胞的离散和连续的可调文件。 示例性离散可调滤波器采用双稳态近晶C * FLC电池。 示例性的连续可调滤波器使用近晶A * FLC细胞。 提供单级或多级过滤器。 还提供了用于颜色生成的阻塞滤波器。 提供的FLC滤波器可以进行时间复用。

公开(公告)号：US11269123B2

公开(公告)日：2022-03-08

申请号：US16260903

申请日：2019-01-29

申请人： Gary D. Sharp ,  Anthony D. McGettigan

发明人： Gary D. Sharp ,  Anthony D. McGettigan

IPC分类号： G02B5/30 ,  G02B27/09 ,  G02B3/00 ,  G02B27/28

摘要： Hollow optical elements that derive optical power from compound-curved reflective surfaces to produce a desired composite optical power. The reflective surfaces in combination with polarization control, can produce a triple-pass arrangement that determines the optical power. Two functional films, one or both of which are formed (e.g., thermoformed), can be joined at the perimeter to form units that are mechanically robust and therefore preserve optical performance under mechanical load. The air-spaced cavity formed between the two layers is free of birefringence concerns, where polarization control is crucial to contrast. These optical elements can be installed in frames or headsets to form lightweight wearable magnifiers, wide-angle collimators, tele-photo lenses, or for any application requiring optical power. They may be most appropriate for applications where light efficiency is not critical, such as well-lit environments, where the insertion-loss of 1 to 2 stops is not problematic.

公开(公告)号：US10895675B2

公开(公告)日：2021-01-19

申请号：US15952336

申请日：2018-04-13

申请人： Gary D. Sharp ,  Anthony D. McGettigan

发明人： Gary D. Sharp ,  Anthony D. McGettigan

IPC分类号： G02B5/30 ,  G02B5/28 ,  G03B11/00 ,  G02C7/10 ,  G02C7/12

摘要： Optical filters that enhance image quality by exploiting differences in the wavelength dependence of the spectral power distribution (SPD) and the degree of polarization between elements in a scene in order to preserve, and more preferably enhance, color-contrast between one or more salient objects in the scene and/or a salient object and a background. The higher degree of polarization may be associated with the background or the one or more salient objects. Color contrast is associated with one or more of a difference in saturation, a difference in hue, and a difference in lightness.

公开(公告)号：US08760760B2

公开(公告)日：2014-06-24

申请号：US13250638

申请日：2011-09-30

申请人： David A. Coleman ,  Gary D. Sharp

发明人： David A. Coleman ,  Gary D. Sharp

IPC分类号： G03B21/60 ,  G03B21/56

CPC分类号： G03B21/60 ,  G03B21/56 ,  G03B21/602 ,  G03B21/604 ,  G03B21/625 ,  Y10T428/24355

摘要： A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.

摘要翻译： 用于提供用于接收立体图像的投影屏幕的方法可以包括向基板提供具有轮廓的反射表面，其中从基板反射的光基本上可以经历不超过单个反射，并且还可以包括在基板上涂覆第一层， 一个轮廓，反光的表面。 第一层可以基本上保持与没有第一层的衬底相同的光学性质。 第一层可以基本上与衬底的表面共形，并且还可以是自组装的单层涂层，其可以包括至少一个疏水性的官能团。