专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US06417892B1 Color filters, sequencers and displays using color selective light modulators 有权
标题翻译：使用颜色选择性光调制器的彩色滤光片，定序器和显示器
公开(公告)号：US06417892B1
公开(公告)日：2002-07-09
申请号：US09362497
申请日：1999-07-30
申请人： Gary D. Sharp , Kristina M. Johnson
发明人： Gary D. Sharp , Kristina M. Johnson
IPC分类号： H04N912
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 , G02F2413/08 , H04N5/66 , H04N5/7441 , H04N9/3111 , H04N9/3167
摘要： The present invention provides a high brightness color selective light modulator (CSLM) formed by a polarization modulator positioned between two retarder stacks. The modulator changes the apparent orientation of one retarder stack relative to the other so that, in a first switching state of the modulator the two retarder stacks cooperate in filtering the spectrum of input light, and in a second switching state the two retarder stacks complement each other, yielding a neutral transmission spectrum. Two or more CSLM stages can be used in series, each stage providing independent control of a primary color. One preferred embodiment eliminates internal polarizers between CSLM stages, thereby providing an additive common-path full-color display with only two neutral polarizers. Hybrid filters can be made using the CSLMs of this invention, in combination with other active or passive filters. The CSLMs of this invention can be used in many applications, particularly in the areas of recording and displaying color images. They can be arranged in a multi pixel array by pixelating the active elements, and can be implemented as color filter arrays, using patterned passive retarders rather than active polarization modulators.
摘要翻译：本发明提供一种通过位于两个延迟器叠层之间的偏振调制器形成的高亮度颜色选择光调制器（CSLM）。调制器改变一个延迟器堆叠相对于另一个延迟器堆叠的表面取向，使得在调制器的第一开关状态下，两个延迟器堆叠协调输入光的滤波，并且在第二开关状态下，两个延迟器堆叠互补另外，产生中性透射光谱。可以串联使用两个或更多个CSLM级，每个阶段提供对原色的独立控制。一个优选实施例消除CSLM级之间的内部偏振器，从而提供仅具有两个中性偏振器的附加公共路径全色显示器。可以使用本发明的CSLM与其它有源或无源滤波器组合来制作混合滤波器。本发明的CSLM可用于许多应用中，特别是在记录和显示彩色图像的领域中。它们可以通过对有源元件进行像素化而被布置在多像素阵列中，并且可以使用图案化的无源延迟器而不是主动偏振调制器来实现为滤色器阵列。

22. 发明授权

US6049367A Polarization manipulating device modulator with retarder stack which preconditions light for modulation and isotropic states 失效
标题翻译：具有缓变器堆的极化操纵装置调制器，其预调制光用于调制和各向同性状态
公开(公告)号：US6049367A
公开(公告)日：2000-04-11
申请号：US853909
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
CPC分类号： G02F1/1336 , G02B27/288 , G02B5/3083 , G02F1/0136 , G02F1/13363 , G02F1/13473 , G02F1/23 , H04N5/66 , H04N9/3111 , H04N9/3126 , H04N9/3167 , G02F1/0322 , G02F1/09 , G02F1/133533 , G02F1/133536 , G02F2001/133543 , G02F2001/133638 , G02F2413/04 , G02F2413/08 , H04N5/7441
摘要： The present invention provides a high brightness subtractive color filter formed by an electro-optic modulator positioned between two retarder stacks. The second retarder stack echoes the first retarder stack, having the same sequence of retardances but in reverse order and having an orientation rotated with respect to the first stack. The modulator changes the apparent orientation of the second stack so that, in a first switching state of the modulator the two stacks cooperate in filtering the spectrum of input light, and in a second switching state they vanish, leaving white light. Two or more stages can be used in series, each stage providing independent analog control of a primary color. One preferred embodiment eliminates internal polarizers between stages, thereby providing a full-color display with only two neutral polarizers. Hybrid filters can be made using the filter of this invention in combination with other active or passive filters. The color filters of this invention can be used in many applications, particularly in the areas of recording and displaying color images. They can be arranged in a multi pixel array and can be optically addressed.
摘要翻译：本发明提供了一种由位于两个延迟器叠层之间的电光调制器形成的高亮度减色滤光器。第二缓速器堆叠回收第一延迟器堆叠，具有相同的延迟序列，但是以相反的顺序并且具有相对于第一堆叠旋转的取向。调制器改变第二堆叠的表观取向，使得在调制器的第一开关状态下，两个叠层协调输入光的滤波，并且在第二切换状态下，它们消失，留下白光。可以串联使用两个或多个阶段，每个阶段提供原色的独立模拟控制。一个优选实施例消除了级之间的内部偏振器，从而提供了仅有两个中性偏振器的全色显示器。可以使用本发明的滤波器与其它有源或无源滤波器组合来制作混合滤波器。本发明的滤色器可用于许多应用中，特别是在记录和显示彩色图像的领域中。它们可以被布置在多像素阵列中并且可以被光学寻址。

23. 发明授权

US06046786A Switchable achromatic compound retarder 失效
标题翻译：可切换消色差合成缓凝剂
公开(公告)号：US06046786A
公开(公告)日：2000-04-04
申请号：US901837
申请日：1997-07-28
申请人： Gary D. Sharp , Kristina M. Johnson
发明人： Gary D. Sharp , Kristina M. Johnson
IPC分类号： G02F1/13 , G02F1/13363 , G02F1/1347 , G02F1/139 , G02F1/141 , G02F1/1335
CPC分类号： G02F1/13471 , G02F1/13363 , G02F1/1393 , G02F1/141 , G02F1/1418 , G02F2001/133638 , G02F2203/02 , G02F2413/02
摘要： This invention provides achromatic liquid crystal 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 compound retarder of this invention comprises a central liquid crystal retarder unit and two external passive 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 external passive retarders are equal in retardance and orientation to each other. Design equations determine the retardance of the external elements 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液晶化合物缓凝剂，消色差极化开关和消色差快门。进一步提供消色差可延迟近晶型液晶延迟器。本发明的复合缓凝剂包括中央液晶延迟器单元和两个与液晶延迟器单元的任一侧串联设置的外部无源延迟器。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。外部无源延迟器的延迟和取向彼此相等。设计方程式确定了外部元件的延迟性及其相对于中心延迟器的取向，以获得化合物结构的特定的消色差延迟。

24. 发明授权

US5552912A Chiral smectic liquid crystal optical modulators 失效
标题翻译：手性近晶液晶光学调制器
公开(公告)号：US5552912A
公开(公告)日：1996-09-03
申请号：US244017
申请日：1994-05-13
申请人： Gary D. Sharp , Kristina M. Johnson
发明人： Gary D. Sharp , Kristina M. Johnson
IPC分类号： G02F1/13 , G02F1/1335 , G02F1/13363 , G02F1/1337 , G02F1/1343 , G02F1/1347 , G02F1/135 , G02F1/137 , G02F1/139 , G02F1/141 , G02F1/21 , C09K19/02
CPC分类号： G02F1/13471 , G02F1/135 , G02F1/141 , G02F1/1418 , G02F1/216 , G02F1/134309 , G02F1/134363 , G02F1/13439 , G02F2001/133638 , G02F2001/133738 , G02F2001/133742 , G02F2203/05 , G02F2203/055 , G02F2203/06 , G02F2203/50
摘要： The present invention provides optical modulators which comprise aligned chiral smectic liquid crystal cells within an optical resonance cavity. The cavity configurations include symmetric and asymmetric Fabry-Perot etalons. The liquid crystal cells can be planar- or homeotropically-aligned and can be discrete state or analog cells. The device configurations of the present invention provide discrete or continuous optical modulation of the phase, intensity, and wavelength of elliptically polarized light, without requiring polarization analyzers. The modulators are optically or electronically addressable in single pixels or arrays of multiple pixels. Certain homeotropically-aligned cells are provided as an aspect of this invention, as are certain variable retarders comprised of planar-aligned cells in combination with birefringent elements.
摘要翻译： PCT No.PCT / US92 / 09707 Sec。 371日期1994年5月13日 102（e）日期1994年5月13日PCT提交于1992年11月5日PCT公布。出版物WO93 / 10477 日期：1993年5月27日本发明提供在光学共振腔内包含对准的手性近晶液晶单元的光学调制器。腔配置包括对称和不对称法布里 - 珀罗标准具。液晶单元可以是平面的或垂直取向的，并且可以是离散的状态或模拟单元。本发明的器件配置提供了不需要偏振分析器的椭圆偏振光的相位，强度和波长的离散或连续光学调制。调制器可以在单个像素或多个像素阵列中光学或电子寻址。作为本发明的一个方面提供了一些垂直取向的单元，以及由双折射元件组合的平面排列单元组成的某些可变延迟器。

25. 发明授权

US5231521A Chiral smectic liquid crystal polarization interference filters 失效
标题翻译： CHIRAL SMECTIC液晶晶体偏振干涉滤光片
公开(公告)号：US5231521A
公开(公告)日：1993-07-27
申请号：US883537
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 , G02F1/133
CPC分类号： G02F1/141 , G02F1/13473 , G02F2203/055
摘要： The present invention provides optical polarization interference filters which employ chiral smectic liquid crystal (CSLC) cells as electronically rotatable retarders. The filters of the present invention are improved in that they are optimized for increased spectral discrimination, uniqueness of spectral outputs and efficient use of CSLC elements. The filters of the present invention include improved single and multiple stage filters. Improved discretely tunable and continuously tunable filters are provided. With respect to filters having one or more stages that contain a series of birefringent elements which are either fixed birefringent elements or active CSLC cells, this invention provides designs which optimize the number of pure spectral outputs which are unique. This optimization relates to the relative order of elements in a stage, the pattern of switching of the active CSLC cells, and the retardations of the CSLC cells in a stage. In a specific embodiment, this invention provides an improved tunable filter that substantially retains the transmissions of a Lyot-type multiple stage filter without requiring the thicknesses of the active CSLC cells to increase geometrically. Continuously tunable filters of this invention include those having a stage which has an analog variable retarder which is the combination of an achromatic quarter-waveplate and one or more analog CSLC cells in series.
摘要翻译：本发明提供了使用手性近晶液晶（CSLC）电池作为电子可旋转延迟器的光学偏振干涉滤光器。改进了本发明的滤波器，因为它们被优化用于增加频谱辨别，频谱输出的唯一性和CSLC元件的有效使用。本发明的滤波器包括改进的单级和多级滤波器。提供了改进的离散可调谐和连续可调滤波器。对于具有包含固定双折射元件或有源CSLC单元的一系列双折射元件的一个或多个级的滤波器，本发明提供了优化独特的纯谱输出数量的设计。该优化涉及阶段中的元素的相对顺序，活性CSLC细胞的切换模式以及阶段中CSLC细胞的延迟。在具体实施例中，本发明提供了一种改进的可调滤波器，其基本上保持Lyot型多级滤波器的传输，而不需要活性CSLC单元的厚度在几何上增加。本发明的连续可调谐滤波器包括那些具有级联的级，其具有串联的无色四分之一波片和一个或多个模拟CSLC单元的组合的模拟可变延迟器。

26. 发明授权

US06183091B2 Color imaging systems and methods 有权
公开(公告)号：US06183091B2
公开(公告)日：2001-02-06
申请号：US09311587
申请日：1999-05-14
申请人： Kristina M. Johnson , Gary D. Sharp
发明人： Kristina M. Johnson , Gary D. Sharp
IPC分类号： G03B2114
CPC分类号： H04N9/3105 , G02B27/283 , G03B21/2073 , G03B33/12 , H04N9/3167
摘要： A system for separating light into different spectrums and for recombining the light includes at least one polarizing beamsplitter and at least one retarder stack configured to condition the polarization of input light differently for different spectrums. A device embodying the invention could utilize multiple polarizing beamsplitters and multiple retarder stacks. Alternatively, a system could utilize a single polarizing beamsplitter and a single retarder stack in combination with one or more dichroic beamsplitters. In preferred embodiments, one or more reflective modulator panels are included to separately modulate each separated spectrum of light. Such an embodiment can be used for a color projection system. In each of the embodiments that utilize modulators, distances between the modulators and the focusing optics is essentially the same.

27. 发明授权

US6078374A Spatially switched achromatic compound retarder 有权
标题翻译：空间切换消色差复合缓凝剂
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。

28. 发明授权

US5999240A Optical retarder stack pair for transforming input light into polarization states having saturated color spectra 失效
标题翻译：用于将输入光转换成具有饱和色谱的极化状态的光学延迟器堆叠对
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。

29. 发明授权

US5528393A Split-element liquid crystal tunable optical filter 失效
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.

30. 发明授权

US5243455A Chiral smectic liquid crystal polarization interference filters 失效
标题翻译：手性近晶液晶偏振干涉滤光片
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式