公开(公告)号：US06507330B1

公开(公告)日：2003-01-14

申请号：US09809741

申请日：2001-03-14

申请人： Mark A. Handschy ,  Jiuzhi Xue ,  Lianhua Ji

发明人： Mark A. Handschy ,  Jiuzhi Xue ,  Lianhua Ji

IPC分类号： G09G336

CPC分类号： G09G3/3651 ,  G09G3/36 ,  G09G3/3614 ,  G09G3/3655 ,  G09G2310/0251 ,  G09G2310/06 ,  G09G2310/063 ,  G09G2320/02 ,  G09G2320/0204 ,  G09G2320/0257

摘要： A method of operating a liquid crystal cell includes DC-balancing by displaying an inverse image with electric fields of increased magnitude relative to the image producing electric fields. While the inverse image is displayed the image is prevented from being visible by either turning off the light source or re-directing or blocking the light from reaching the viewing area. The image producing electric fields and the inverse image producing electric fields are such that the cumulative time integral of the electric fields that are present in one direction across the liquid crystal material is substantially equal to the cumulative time integral of the electric fields that are present in the opposite direction during the given period of time during the operation of liquid crystal cell. The time duration of the inverse image portion is shorter than the time duration of the image portion by an amount proportional to the increased magnitude of the additional electric fields. Because of the shorter time period when no image is visible, the system brightness is increased.

摘要翻译： 操作液晶单元的方法包括通过相对于产生图像的电场显示具有增大幅度的电场的逆图像的DC平衡。 当显示逆图像时，通过关闭光源或重新引导或阻挡光线到达观看区域，防止图像可见。 图像产生电场和逆图像产生电场使得在液晶材料上沿一个方向存在的电场的累积时间积分基本上等于存在于电场中的电场的累积时间积分 在液晶单元操作期间的给定时间段内的相反方向。 逆图像部分的持续时间比图像部分的持续时间短，与附加电场的幅度增加成比例的量。 由于无图像可见时间较短，系统亮度增加。

公开(公告)号：US06636681B2

公开(公告)日：2003-10-21

申请号：US09851193

申请日：2001-05-07

申请人： Lianhua Ji ,  Jiuzhi Xue

发明人： Lianhua Ji ,  Jiuzhi Xue

IPC分类号： G02B600

CPC分类号： B82Y20/00 ,  G02B6/266 ,  G02F1/017 ,  G02F2203/48 ,  H01S3/0078 ,  H01S2301/04 ,  H01S2301/06 ,  H04B10/25073 ,  H04B2210/258

摘要： A variable optical attenuator having a multiple quantum well structure (MQWS), a feedback system that provides a feedback signal, and a current control that utilizes the feedback signal to regulate the attenuation of the MQWS. In one embodiment, the MQWS is part of a photo intrinsic diode, and in another embodiment it is part of a self-electro-optic effect device (SEED). Preferably, there are a plurality of MQWSs, which may be arranged in a serial stack or may be arranged in a plane parallel to the MQWS layers, with light passed from one MQWS to the next via prisms. Preferably, the beam is separated into component wavelengths by a demultiplexer, each wavelength is attenuated by one or more MQWSs designed to attenuate that wavelength, and the beam is then recombined with an optical multiplexer. In another embodiment, the attenuator is combined with an erbium-doped fiber amplifier (EDFA) to provide an amplifier having an essentially flat gain as a function of wavelength.

公开(公告)号：US20090219603A1

公开(公告)日：2009-09-03

申请号：US12152969

申请日：2008-05-19

申请人： Jiuzhi Xue

发明人： Jiuzhi Xue

IPC分类号： G02F1/1347 ,  G02F1/19 ,  B05D5/06 ,  G02B5/28

CPC分类号： G02B5/285 ,  G02B5/287 ,  G02B5/3016 ,  G02F1/0147 ,  G02F1/21

摘要： The present invention discloses a multilayer dielectric optical structure wherein one of the optical materials in the multilayer structure shows an optically isotropic state above and a birefringent state below a characteristic temperature Tc near the room temperature. The optical structure reflects a predetermined wavelength range of electromagnetic radiation above the Tc but allow the same to transmit through below the Tc. The predetermined wavelength can be the near infrared radiation from 700 nm to 2500 nm, and the optical structure rejects solar heat in warm summer days but admits the same to interior on a colder winter day.

摘要翻译： 本发明公开了一种多层电介质光学结构，其中多层结构中的一种光学材料在室温附近的特征温度Tc以下显示出光学各向同性的状态和双折射状态。 光学结构反映了高于Tc的电磁辐射的预定波长范围，但允许其相同的透射通过低于Tc。 预定波长可以是从700nm到2500nm的近红外辐射，并且光学结构在温暖的夏天拒绝太阳热，但在较冷的冬天允许相同于内部。

公开(公告)号：US07379144B1

公开(公告)日：2008-05-27

申请号：US09591437

申请日：2000-06-09

申请人： Jiuzhi Xue ,  Beth L. Ellis ,  Stephen H. Perlmutter ,  Charles Crandall

发明人： Jiuzhi Xue ,  Beth L. Ellis ,  Stephen H. Perlmutter ,  Charles Crandall

IPC分类号： G02F1/141

CPC分类号： G02F1/141 ,  G02F1/133723 ,  G02F1/133784 ,  G02F2001/133773 ,  G02F2203/30

摘要： An optical device includes a ferroelectric liquid crystal material. This optical device has a first and a second substrate. A first alignment treatment is applied to a surface of the first substrate, the first alignment treatment being intended to induce an orientation of at least a portion of the ferroelectric liquid crystal material along a first alignment direction with a first pretilt angle α1 with respect to a plane parallel to the first substrate. A second alignment treatment is applied to a surface of the second substrate, the second alignment treatment being intended to induce an orientation of at least another portion of the ferroelectric liquid crystal material along a second alignment direction with a second pretilt angle α2 with respect to a plane parallel to the second substrate. The optical device further includes an arrangement for securing the first substrate with respect to the second substrate in such a way that the surfaces of the first and second substrates onto which the first and second alignment treatments were applied, respectively, are spaced apart, generally parallel and facing each other. In addition, a projection of the first alignment direction onto the treated surface of the first substrate makes a non-zero angle Ω with respect to a projection of the second alignment direction onto the treated surface of the first substrate such that, the ferroelectric liquid crystal material being injected between the first and second substrates, the optical device is free of chevron structures without a need to otherwise apply an additional treatment to the optical device.

摘要翻译： 光学器件包括铁电液晶材料。 该光学装置具有第一和第二基板。 对第一衬底的表面施加第一取向处理，第一取向处理旨在沿着第一校准方向诱导至少一部分铁电液晶材料的取向，其中第一预倾斜角α1 相对于平行于第一基板的平面。 第二取向处理被施加到第二基板的表面，第二取向处理旨在使第二预倾斜角α2沿着第二对准方向感应强电介质液晶材料的至少另一部分的取向 相对于平行于第二基板的平面。 该光学装置还包括用于相对于第二基板固定第一基板的装置，使得分别施加有第一和第二对准处理的第一和第二基板的表面间隔开，大致平行 并相互面对。 此外，将第一取向方向投影到第一基板的处理表面上，相对于第二取向方向的投影，在第一基板的处理表面上形成非零角度Ω，使得铁电液晶 材料被注入在第一和第二基底之间，光学装置不含人字纹结​​构，而不需要另外对光学装置施加额外的处理。

公开(公告)号：US20120002264A1

公开(公告)日：2012-01-05

申请号：US13175762

申请日：2011-07-01

申请人： Jiuzhi Xue

发明人： Jiuzhi Xue

IPC分类号： G02F1/1347 ,  G02F1/19

CPC分类号： G02B5/285 ,  G02B5/287 ,  G02B5/3016 ,  G02F1/0147 ,  G02F1/21

摘要： The present invention discloses a multilayer dielectric optical structure wherein one of the optical materials in the multilayer structure shows an optically isotropic state above and a birefringent state below a characteristic temperature Tc near the room temperature. The optical structure reflects a predetermined wavelength range of electromagnetic radiation above the Tc but allow the same to transmit through below the Tc. The predetermined wavelength can be the near infrared radiation from 700 nm to 2500 nm, and the optical structure rejects solar heat in warm summer days but admits the same to interior on a colder winter day.

摘要翻译： 本发明公开了一种多层电介质光学结构，其中多层结构中的一种光学材料在室温附近的特征温度Tc以下显示出光学各向同性的状态和双折射状态。 光学结构反映了高于Tc的电磁辐射的预定波长范围，但允许其相同的透射通过低于Tc。 预定波长可以是从700nm到2500nm的近红外辐射，并且光学结构在温暖的夏天拒绝太阳热，但在较冷的冬天允许相同于内部。

公开(公告)号：US20100118380A1

公开(公告)日：2010-05-13

申请号：US12688843

申请日：2010-01-15

申请人： Jiuzhi Xue

发明人： Jiuzhi Xue

IPC分类号： G02F1/19 ,  G02B5/30

CPC分类号： G02B5/285 ,  G02B5/287 ,  G02B5/3016 ,  G02F1/0147 ,  G02F1/21

摘要： The present invention discloses a multilayer dielectric optical structure wherein one of the optical materials in the multilayer structure shows an optically isotropic state above and a birefringent state below a characteristic temperature Tc near the room temperature. The optical structure reflects a predetermined wavelength range of electromagnetic radiation above the Tc but allow the same to transmit through below the Tc. The predetermined wavelength can be the near infrared radiation from 700 nm to 2500 nm, and the optical structure rejects solar heat in warm summer days but admits the same to interior on a colder winter day.

摘要翻译： 本发明公开了一种多层电介质光学结构，其中多层结构中的一种光学材料在室温附近的特征温度Tc以下显示出光学各向同性的状态和双折射状态。 光学结构反映了高于Tc的电磁辐射的预定波长范围，但允许其相同的透射通过低于Tc。 预定波长可以是从700nm到2500nm的近红外辐射，并且光学结构在温暖的夏天拒绝太阳热，但在较冷的冬天允许相同于内部。

公开(公告)号：US20060098290A1

公开(公告)日：2006-05-11

申请号：US11298047

申请日：2005-12-09

申请人： Primal Fernando ,  Noel Clark ,  Jiuzhi Xue

发明人： Primal Fernando ,  Noel Clark ,  Jiuzhi Xue

IPC分类号： G02B27/00

CPC分类号： G02B5/208 ,  B32B17/10036 ,  B32B17/10174 ,  B32B17/10339 ,  E06B9/24 ,  E06B2009/2464 ,  G02F1/133305 ,  Y02A30/257 ,  Y02B80/50

摘要： An adjustably opaque window including an external pane, an internal pane, a light transmission control layer and a shock-absorbing layer is provided. The external pane and the internal pane provide a cavity between them, and the light transmission control layer and the shock-absorbing layer are positioned in the cavity. The shock-absorbing layer is a flexible sheet that supports and protects the light transmission control layer. The light transmission layer consists of liquid crystal cells. The transmission ratio of the cells can be controlled variably.

摘要翻译： 提供了包括外部窗格，内部窗格，透光控制层和减震层的可调节的不透明窗口。 外部窗格和内部窗格在它们之间提供空腔，并且光传输控制层和减震层位于空腔中。 减震层是支撑和保护光传输控制层的柔性片。 透光层由液晶单元组成。 可以可变地控制电池的传输比。

公开(公告)号：US06870163B1

公开(公告)日：2005-03-22

申请号：US09653437

申请日：2000-09-01

申请人： Jiuzhi Xue ,  David M. Walba

发明人： Jiuzhi Xue ,  David M. Walba

IPC分类号： C09K19/02 ,  G01N21/19 ,  G01N21/35

CPC分类号： C09K19/0266 ,  C09K19/02 ,  G01N21/19 ,  G01N21/3563

摘要： Bistable and analog FLC devices employing chiral nonracemic liquid crystal materials exhibiting de Vries smectic A phases. The invention provides certain liquid crystal material that can be employed in both bistable and analog device configurations. The invention also provides a method for identifying liquid crystal materials that will exhibit both bookshelf structure in SSFLC cells and provide V-shaped switching in an analog device configuration.

摘要翻译： 采用手性非线性液晶材料的双稳态和模拟FLC器件，显示出de Vries近晶A相。 本发明提供了可用于双稳态和模拟器件配置的某些液晶材料。 本发明还提供了一种识别在SSFLC单元中展现书架结构并在模拟装置配置中提供V形切换的液晶材料的方法。

公开(公告)号：US20110249226A1

公开(公告)日：2011-10-13

申请号：US13164592

申请日：2011-06-20

申请人： Terry J. Scheffer ,  Jiuzhi Xue

发明人： Terry J. Scheffer ,  Jiuzhi Xue

IPC分类号： G02F1/1335

CPC分类号： G02F1/133753 ,  G02F2001/133761 ,  G02F2001/134372 ,  G02F2001/1398

摘要： Self-compensating, quasi-homeotropic liquid crystal devices overcome the contrast reducing effects of smaller pretilt angles. The devices exhibit extremely high contrast ratio but at the same time suppress fringe field-induced disclination lines in high pixel density and small pixel size quasi-homeotropic displays. The surface pretilt and cell twist angles are set at values that, in combination, contribute to establishing a cuspate singularity in the contrast ratio for normally incident light in response to a drive signal switching the liquid crystal device to the OFF director field state that provides nearly 0% optical efficiency. The OFF director field state corresponds to a subthreshold drive level that provides for the liquid crystal device self-compensation for in-plane optical retardation. Setting the cell gap (“d”) to provide substantially 100% optical efficiency in response to a value of the drive signal switching the liquid crystal device to the ON director field state achieves optimal dynamic range for the liquid crystal device.

摘要翻译： 自补偿准准垂直液晶装置克服了较小预倾斜角的对比度降低效果。 器件表现出非常高的对比度，同时抑制高像素密度和小像素大小准垂直显示器中的条纹场引发的旋错线。 表面预倾斜和单元扭曲角被设定为这样的值，其组合有助于响应于将液晶装置切换到提供近似的OFF导向器场状态的驱动信号，在正常入射光的对比度中建立尖点奇点 0％光学效率。 OFF导向器场状态对应于提供液晶装置对面内光学延迟的自补偿的亚阈值驱动电平。 设置单元间隙（“d”）以响应于将液晶装置切换到导通器磁场状态的驱动信号的值来提供基本上100％的光学效率，从而实现了液晶装置的最佳动态范围。

公开(公告)号：US20090284670A1

公开(公告)日：2009-11-19

申请号：US12430868

申请日：2009-04-27

申请人： Jiuzhi Xue

发明人： Jiuzhi Xue

IPC分类号： G02F1/1335 ,  G02F1/19

CPC分类号： G02F1/133536 ,  G02F2001/133543 ,  G02F2001/133545 ,  G02F2001/133548

摘要： A window having electrically controllable transmission and reflection includes a layer of liquid crystal material and polarizers on either side thereof. Different combinations of absorptive and reflective polarizers are disclosed. These different combinations can be used in different applications to achieve the desired results. Transparent, conductive layers are provided to apply an electrical field to the liquid crystal material so as to selectively control the rotation of the polarization of light passing therethrough.

摘要翻译： 具有电可控制透射和反射的窗口包括在其两侧的液晶材料层和偏振器。 公开了吸收和反射偏振器的不同组合。 这些不同的组合可以用于不同的应用中以获得期望的结果。 提供透明导电层以向液晶材料施加电场，以便选择性地控制通过其中的光的偏振的旋转。