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1. 发明授权

US07206134B2 Compact electronic viewfinder 失效
标题翻译：紧凑型电子取景器
公开(公告)号：US07206134B2
公开(公告)日：2007-04-17
申请号：US11051966
申请日：2005-02-03
申请人： Paul Weissman , Mark A. Handschy
发明人： Paul Weissman , Mark A. Handschy
IPC分类号： G02B27/14 , G09G5/00
CPC分类号： G02B23/14 , G02B27/283 , G03B13/02 , H04N5/2254
摘要： An electronic viewfinder with a reflective microdisplay and associated optical elements in a design that utilizes one or more folded optical paths to achieve a compact size and volume that may have a dimension of less than 10 millimeters per side. Moreover, the optical design may have an effective focal length that is greater than the spacing of the optical elements from the microdisplay. Various embodiments include a pancake window arrangement with reflective surfaces that are spaced apart from each other and cube beamsplitter eyepieces with folded paths.
摘要翻译：具有反射式微显示器和相关联的光学元件的电子取景器，其设计利用一个或多个折叠光学路径来实现尺寸小于每毫米10毫米的紧凑尺寸和体积。此外，光学设计可以具有大于光学元件与微显示器的间隔的有效焦距。各种实施例包括具有彼此间隔开的反射表面的薄饼窗布置和具有折叠路径的立方体分束器目镜。

2. 发明授权

US07170483B2 Active matrix liquid crystal image generator 失效
标题翻译：有源矩阵液晶图像发生器
公开(公告)号：US07170483B2
公开(公告)日：2007-01-30
申请号：US10437131
申请日：2003-05-12
申请人： Mark A. Handschy , Michael R. Meadows
发明人： Mark A. Handschy , Michael R. Meadows
IPC分类号： G09G3/36
CPC分类号： G09G3/3651 , G02F1/133553 , G02F1/135 , G02F1/136277 , G02F1/141 , G02F2001/133622 , G02F2203/12 , G02F2203/30 , G09G3/2022 , G09G3/2025 , G09G3/2029 , G09G3/2081 , G09G3/3406 , G09G2310/0235 , G09G2310/0237 , G09G2310/0278 , G09G2310/061 , G09G2320/0633 , G09G2320/064
摘要： A system for producing spatially modulated monochrome or color light having gray scale includes an active matrix liquid crystal spatial light modulator having light modulating means including (i) a layer of ferroelectric liquid crystal material which is designed to switch between ON and OFF states and (ii) active matrix means including VLSI circuitry for dividing the layer of liquid crystal material into an array of individual liquid crystal pixels and for causing each of the pixels of liquid crystal material to modulate light individually by switching between the ON and OFF states in a way that depends upon the data which the VLSI circuitry is written. The system also includes illumination means having a light source for directing light from the source into the pixel-divided layer of ferroelectric liquid crystal material in a specific way. And finally, the system includes means for writing the VLSI circuitry with preselected data in accordance with a particular data ordering scheme such that the circuitry, in response to the written data, causes the pixels of liquid crystal material to individually switch between their ON and OFF states and therefore modulate light from the source in a way which, depending upon the data, produces a specific overall pattern of gray scale light.
摘要翻译：一种用于生产具有灰度级的空间调制单色或彩色光的系统包括有源矩阵液晶空间光调制器，其具有光调制装置，该调制装置包括：（i）被设计成在导通和截止状态之间切换的铁电液晶材料层，）有源矩阵装置，包括用于将液晶材料层分成单个液晶像素的阵列的VLSI电路，并且使得液晶材料的每个像素通过在ON和OFF状态之间切换来单独地调制光，取决于VLSI电路写入的数据。该系统还包括具有用于将光源以特定方式引导到铁电液晶材料的像素分割层的光源的照明装置。最后，该系统包括用于根据特定数据排序方案将VLSI电路写入预选数据的装置，使得电路响应于写入的数据使液晶材料的像素在其ON和OFF之间单独切换状态并且因此以取决于数据产生灰度光的特定总体图案的方式调制来自光源的光。

3. 发明授权

US07083832B2 Partially fluorinated liquid crystal material 失效
公开(公告)号：US07083832B2
公开(公告)日：2006-08-01
申请号：US09854181
申请日：2001-05-11
申请人： Michael Wand , Neil Gough , Xin Hua Chen
发明人： Michael Wand , Neil Gough , Xin Hua Chen
IPC分类号： C09K19/20 , C09K19/34 , C07C69/76 , C07C25/13 , C07D239/02
CPC分类号： C09K19/0266 , C09K19/126 , C09K19/2021 , C09K19/3444 , C09K19/3463 , C09K19/406 , Y10T428/10
摘要： The invention provides LC compositions that exhibit V-shaped switching when aligned in an analog device configuration and exhibit bistability when aligned in a bookshelf-type device configuration. The invention more specifically provides LC compositions of formula 1 and particularly chiral nonracemic compounds of formula 1 which exhibit bistable switching as well as V-shaped switching when aligned in appropriate device configurations. The invention also provides methods of using the compounds of the invention in making LC compositions and electooptical devices comprising an aligned layer of the compositions of this invention.

4. 发明授权

US5900976A Display system including a polarizing beam splitter 失效
标题翻译：显示系统包括偏振分束器
公开(公告)号：US5900976A
公开(公告)日：1999-05-04
申请号：US26988
申请日：1998-02-20
申请人： Mark A. Handschy , Noel A. Clark
发明人： Mark A. Handschy , Noel A. Clark
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13357 , G03B21/14 , G03B21/28
CPC分类号： G02F1/13362 , G02B5/3033 , G02F1/133536 , G02F2001/13355
摘要： A virtual image display system includes a reflective mode spatial light modulator, a light source for illuminating the spatial light modulator, and an optics arrangement for directing a predetermined portion of the light from the light source into the spatial light modulator and for directing certain portions of the light reflected from the spatial light modulator to a desired viewing area. The optics arrangement includes an overall polarizing beam splitter. The polarizing beam splitter has three layers of materials. The first layer is a layer of polarizing beam splitting material configured to reflect light of a first polarization and transmit light of a second polarization. The second layer is another layer of polarizing beam splitting material. The third layer is a layer of material positioned between the first and second layers of polarizing beam splitting materials. The first, second, and third layers of materials act together to form the overall polarizing beam splitter.
摘要翻译：虚拟图像显示系统包括反射模式空间光调制器，用于照亮空间光调制器的光源和用于将来自光源的光的预定部分引导到空间光调制器中并用于将某些部分从空间光调制器反射到期望的观看区域的光。光学装置包括一个整体的偏振分束器。偏振分束器具有三层材料。第一层是被配置为反射第一偏振光并透射第二偏振光的偏振分束材料层。第二层是另一层偏振分束材料。第三层是位于第一和第二层偏振分束材料之间的材料层。第一，第二和第三层材料一起起作用以形成整个偏振分束器。

5. 发明授权

US5808800A Optics arrangements including light source arrangements for an active matrix liquid crystal image generator 失效
公开(公告)号：US5808800A
公开(公告)日：1998-09-15
申请号：US362234
申请日：1994-12-22
申请人： Mark A. Handschy , Michael R. Meadows , Holden Chase
发明人： Mark A. Handschy , Michael R. Meadows , Holden Chase
IPC分类号： G02B27/14 , G02F1/13357
CPC分类号： G02F1/1336 , G02B27/1033 , G02B27/1053 , G02B27/1086 , G02B27/123 , G02B27/145 , G02B27/283 , G02F1/133606 , G02B6/0033 , G02B6/0056 , G02F1/133526 , G02F1/133609 , G02F1/13362 , G02F1/136277 , G02F2001/133616 , G02F2001/133622 , Y10S362/80
摘要： A system for producing modulated light is disclosed. The system comprises a spatial light modulator including a light modulating medium switchable between different states so as to act on light in ways which form overall patterns of modulated light. The system also includes an arrangement for switching the modulating medium between the different states in a controlled way and an illumination arrangement for producing a source of light. The system further includes an optics arrangement for directing light from the source of light into the spatial light modulator and for directing light from the spatial light modulator through a predetermined source imaging area. The optics arrangement cooperates with the illumination arrangement and the spatial light modulator so as to produce a real image of the source of light within the source imaging area such that an individual is able to view a virtual image of the overall patterns of modulated light from the source imaging area. A variety of novel optics arrangements are disclosed including specific combinations of different light sources, diffusing plates, polarizers, beam splitters, analyzers, lenses, mirrors, and holographic optical elements which allow the overall optical arrangement to be miniaturized to the same degree and in coordination with the spatial light modulator. The different light sources include using a plurality of light sources, such as LEDs, to form an array of light sources, each of the light sources providing light to a corresponding portion of the spatial light modulator.

6. 发明授权

US5748164A Active matrix liquid crystal image generator 失效
公开(公告)号：US5748164A
公开(公告)日：1998-05-05
申请号：US362665
申请日：1994-12-22
申请人： Mark A. Handschy , Michael R. Meadows
发明人： Mark A. Handschy , Michael R. Meadows
IPC分类号： G09G3/20 , G09G3/34 , G09G3/36
CPC分类号： G09G3/3651 , G09G3/3406 , G02F1/133553 , G02F1/135 , G02F1/136277 , G02F1/141 , G02F2001/133622 , G02F2203/12 , G02F2203/30 , G09G2310/0235 , G09G2310/0237 , G09G2310/0278 , G09G2310/061 , G09G2320/0633 , G09G2320/064 , G09G3/2022 , G09G3/2025 , G09G3/2029 , G09G3/2081
摘要： A system for producing spatially modulated monochrome or color light having gray scale includes an active matrix liquid crystal spatial light modulator having light modulating means including (i) a layer of ferroelectric liquid crystal material which is designed to switch between ON and OFF states and (ii) active matrix means including VLSI circuitry for dividing the layer of liquid crystal material into an array of individual liquid crystal pixels and for causing each of the pixels of liquid crystal material to modulate light individually by switching between the ON and OFF states in a way that depends upon the data which the VLSI circuitry is written. The system also includes illumination means having a light source for directing light from the source into the pixel-divided layer of ferroelectric liquid crystal material in a specific way. And finally, the system includes means for writing the VLSI circuitry with preselected data in accordance with a particular data ordering scheme such that the circuitry, in response to the written data, causes the pixels of liquid crystal material to individually switch between their ON and OFF states and therefore modulate light from the source in a way which, depending upon the data, produces a specific overall pattern of gray scale light.

7. 发明授权

US5626792A High birefringence liquid crystal compounds 失效
标题翻译：高双折射液晶化合物
公开(公告)号：US5626792A
公开(公告)日：1997-05-06
申请号：US301121
申请日：1994-09-06
申请人： Michael Wand , William N. Thurmes , Kundalika Mor e , Rohini T. Vohra
发明人： Michael Wand , William N. Thurmes , Kundalika Mor e , Rohini T. Vohra
IPC分类号： C09K19/02 , C09K19/58 , C09K19/52 , C09K19/06 , C09K19/32 , C09K19/34
CPC分类号： C09K19/0225 , C09K19/582
摘要： High birefringence liquid crystal dopants having the formula:R.sub.1 X--C--.tbd.--D--Twherein C and D, independently of one another, are aromatic ring systems each of which has one or two 5-member or 6-member carbon rings wherein one or two carbons of any ring in C or D can be substituted with a nitrogen, oxygen or sulfur atom and wherein any ring in C or D can be substituted with one or two halogen atoms; T is a halogen, haloalkyl, haloalkoxy, vinylhalide or a group YR.sub.2 where Y is a single bond, double bond, triple bond, --COS--, --CS.sub.2 --, --CH.dbd.CH--CO--S--, --CH.dbd.CH--CS--S-- or --CH.dbd.CH--CO--O-- group; X is a single bond, double bond, triple bond, O or S atoms or a cyclohexane or cyclohexene group, Z--Q--W, where Q is a cyclohexane or cyclohexene ring in which one or two of the ring carbons can be replaced with an O atom or in which one or more of the ring carbons can be substituted with a halogen atom or a cyano group, Z is a single bond or an O or S atom and W is a single bond, a --CH.sub.2 -- group, a --CH2--CH.sub.2 -- group, or a --CH.sub.2 --O-- group; and R.sub.l and R.sub.2 are, independently of one another, alkyl groups having from about 3 to about 20 carbon atoms in which one or more --CH.sub.2 -- groups can be halogenated, two neighboring --CH.sub.2 -- groups can be substituted with an epoxide, or one or more non-neighboring --CH.sub.2 -- groups can be substituted with a double bond, triple bond, an O atom, a S atom, or a silyl group SiR.sub.A R.sub.B wherein R.sub.A and R.sub.B, independently of one another, can be alkyl or alkenyl groups having 1 to about 6 carbon atoms are provided. More specifically, high birefringence dopants that are alkynyl tolanes dialkynyl tolanes and tolanes having cinnamate ester tails and derivatives of those tails are provided. High birefringence dopants also possess UV stability, IR clarity and other properties that affect LC properties.
摘要翻译：具有下式的高双折射液晶掺杂剂：R1X-C-3BOND-D-Twherein C和D彼此独立地为芳族环系，其中每一个具有一个或两个5-构件或6-构成的碳环，其中一个或 C或D中的任何环的两个碳可以被氮，氧或硫原子取代，并且其中C或D中的任何环可以被一个或两个卤素原子取代; T是卤素，卤代烷基，卤代烷氧基，乙烯基卤或YR2，Y是单键，双键，三键，-COS-，-CS2-，-CH = CH-CO-S-，-CH = CH- CS-S-或-CH = CH-CO-O-基; X是单键，双键，三键，O或S原子或环己烷或环己烯基，ZQW，其中Q是环或环己烯环，其中一个或两个环碳原子可被O原子取代或其中一个或多个环碳可以被卤素原子或氰基取代，Z是单键或O或S原子，W是单键，-CH 2 - 基，-CH 2 -CH 2 - 基团或-CH 2 -O-基团; 并且R 1和R 2彼此独立地为具有约3至约20个碳原子的烷基，其中一个或多个-CH 2 - 基可以被卤化，两个相邻的-CH 2 - 基团可被环氧化物取代，或一个或更多不相邻的-CH 2 - 基团可以被双键，三键，O原子，S原子或甲硅烷基SiRARB取代，其中RA和RB彼此独立地可以是具有提供1至约6个碳原子。更具体地，提供了作为炔基甲苯二炔基甲苯的高双折射掺杂剂和具有肉桂酸酯尾部和那些尾部的衍生物的甲苯。高双折射掺杂剂还具有影响LC性能的UV稳定性，IR透明度和其他性能。

8. 发明授权

US5347378A Fast switching color filters for frame-sequential video using ferroelectric liquid crystal color-selective filters 失效
标题翻译：用于使用铁电液晶色选择滤光片的帧顺序视频快速切换彩色滤光片
公开(公告)号：US5347378A
公开(公告)日：1994-09-13
申请号：US47348
申请日：1993-04-19
申请人： Mark A. Handschy , Linden Stuart, III , Hugh Masterson
发明人： Mark A. Handschy , Linden Stuart, III , Hugh Masterson
IPC分类号： G02F1/1347 , G02F1/141 , G02F1/13 , G02F1/133 , G02F1/1335
CPC分类号： G02F1/13473 , G02F1/141
摘要： A frame-sequential color video system and color-selective filters for use in the same. The color-selective filters of the invention have fast response, and can be switched between the three primary colors of red, green, and blue. Switching between the three primary colors is achieved by selective absorption, or by selective interference, which is controlled by the switching of specific device combinations. A frame-sequential color display system is achieved by combining such a color-selective filter with a fast-switching black and white video display, which can be either emissive or reflective. A frame-sequential color camera system is achieved by combining such a color-selective filter with a fast-responding black and white video camera.
摘要翻译：一种帧顺序彩色视频系统和彩色选择滤光片，用于其中。本发明的颜色选择性滤光片具有快速响应，可以在红，绿，蓝三原色之间进行切换。三原色之间的切换是通过选择性吸收或通过选择性干扰来实现的，其通过特定装置组合的切换来控制。通过将这种颜色选择性滤光器与快速切换黑白视频显示器组合来实现帧顺序彩色显示系统，其可以是发射的或反射的。通过将这种颜色选择性滤波器与快速响应的黑白摄像机组合来实现帧序彩色摄像机系统。

9. 发明授权

US06838128B1 High polarization dopants for ferroelectric liquid crystal compositions 失效
标题翻译：铁电液晶组合物的高极化掺杂剂
公开(公告)号：US06838128B1
公开(公告)日：2005-01-04
申请号：US10068557
申请日：2002-02-05
申请人： Michael Wand , Xin Hua Chen
发明人： Michael Wand , Xin Hua Chen
IPC分类号： C07D213/65 , C07D239/26 , C07D307/33 , C07D405/12 , C09K19/02 , C09K19/34 , C09K19/58 , C07D239/24 , C07D307/56 , C07D405/02 , C09K19/42
CPC分类号： C07D239/26 , C07D213/65 , C07D307/33 , C07D405/12 , C09K19/0225 , C09K19/3405 , C09K19/588 , Y10T428/10
摘要： The invention relates to chiral nonracemic liquid crystal compounds which are useful as components in liquid crystal compositions to impart high polarization to the mixture. The materials of this invention can be combined with liquid crystal host materials to impart improved properties to mixtures. Chiral nonracemic compounds of this invention can function as additives or dopants in host materials to impart chirality into an LC material. Most generally the invention provides mixtures containing one or more chiral nonracemic dopants which have a chiral nonracemic tail that is an optionally substituted α-ester γ-lactone of the formula: where * indicates a chiral carbon; R1 is a straight-chain or branched alkyl or alkenyl group wherein one or more non-neighboring carbon atoms can be replaced with an oxygen atom and wherein one or more carbons can be substituted with one or more halogens; R2 and R3, independently of one another, can be hydrogen, a halogen or a lower alkyl or alkenyl group; and X is hydrogen or a lower alkyl group. LC compounds having a chiral nonracemic tail of this general formula have large dipoles (and large spontaneous polarization (Ps)) and when doped into hosts such as achiral smectic C FLC hosts, lead to improved switching speeds of the FLC materials.
摘要翻译：本发明涉及手性非水性液晶化合物，其可用作液晶组合物中的组分以赋予混合物高的极化。本发明的材料可以与液晶主体材料组合以赋予混合物改进的性能。本发明的手性非芳香化合物可用作宿主材料中的添加剂或掺杂剂，以将手性赋予LC材料。最普遍地，本发明提供了含有一种或多种手性非线性掺杂剂的混合物，其具有手性非线性尾部，其是任选取代的下式的α-酯γ-内酯：其中*表示手性碳; R1是直链或支链的烷基或烯基，其中一个或多个非相邻碳原子可以被氧原子代替，并且其中一个或多个碳可被一个或多个卤素取代; R2和R3彼此独立地可以是氢，卤素或低级烷基或烯基; X为氢或低级烷基。具有该通式的手性非线性尾的LC化合物具有大的偶极（和大的自发极化（Ps）），并且当掺杂到诸如非手性近晶C FLC主体的主体中时，导致FLC材料的切换速度提高。

10. 发明授权

US6144421A Continuously viewable, DC-field balanced, reflective, ferroelectric liquid crystal image generator 失效
标题翻译：连续可见的直流场平衡，反射，铁电液晶影像发生器
公开(公告)号：US6144421A
公开(公告)日：2000-11-07
申请号：US507450
申请日：2000-02-19
申请人： Charles M. Crandall
发明人： Charles M. Crandall
IPC分类号： G02F1/137 , C09K19/02 , G02F1/1335 , G02F1/13357 , G02F1/13363 , G02F1/1347 , G02F1/135 , G02F1/141
CPC分类号： G02F1/141 , G02F1/13471 , G02F1/13363 , G02F2001/133616 , G02F2001/133638 , G02F2203/02 , G02F2203/12
摘要： A reflection mode, ferroelectric liquid crystal spatial light modulating system, includes a light reflecting type spatial light modulator. The spatial light modulator has a light reflecting surface cooperating with a layer of ferroelectric liquid crystal light modulating medium switchable between first and second states so as to act on light in different first and second ways, respectively. A switching arrangement switches the liquid crystal light modulating medium between the first and second states and an illumination arrangement produces a source of light. An optics arrangement is optically coupled the spatial light modulator and the illumination arrangement such that light is directed from the source of light into the spatial light modulator for reflection back out of the modulator and such that reflected light is directed from the spatial light modulator into a predetermined viewing area. The optics arrangement includes a passive quarter wave plate positioned in the optical path between the light source and the spatial light modulator and in the optical path between the spatial light modulator and the viewing area. A compensator cell is also positioned in the optical path between the light source and the spatial light modulator and in the optical path between the spatial light modulator and the viewing area. The compensator cell has a layer of ferroelectric liquid crystal light modulating medium switchable between a primary and a secondary state so as to act on light in different primary and secondary ways, respectively.
摘要翻译：反射模式，铁电液晶空间光调制系统，包括光反射型空间光调制器。空间光调制器具有与第一和第二状态之间可切换的铁电液晶光调制介质层配合的光反射表面，以分别以不同的第一和第二方式作用于光。开关装置在第一和第二状态之间切换液晶光调制介质，并且照明装置产生光源。光学装置将空间光调制器和照明装置光耦合，使得光从光源引导到空间光调制器中，用于反射回调制器，并使得反射光从空间光调制器被引导到预定的观看区域。光学装置包括位于光源和空间光调制器之间的光路中以及在空间光调制器和观看区域之间的光路中的无源四分之一波片。补偿单元也位于光源和空间光调制器之间的光路中，并且位于空间光调制器和观看区域之间的光路中。补偿单元具有一层铁电液晶光调制介质，其可在初级和次级状态之间切换，以分别以不同的一次和二次方式作用于光。

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