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公开(公告)号：US06288824B1
公开(公告)日：2001-09-11
申请号：US09270614
申请日：1999-03-17
申请人： Alex Kastalsky
发明人： Alex Kastalsky
IPC分类号： G02F107
CPC分类号： G02B5/1828 , G02B26/02
摘要： Electrostatic optical shutter is disclosed in which a resilient electrode in the shape of a membrane made from optically transparent and electrically insulating film is disposed over an optically transparent and electrically insulating substrate and supported by one or several flexible tether beams which are attached to the substrate through the conductive pillars. Both the membrane and the substrate contain a grating with periodically repeated parallel stripes made from electrically conductive and opaque material. The stripes are connected at one or both ends to form continuous electrodes, while the grating structures on the electrodes are shifted from each other by a half a period to block the light transmission through the shutter in the unbiased state. Under electrical bias, the membrane is moved both laterally and normally to the substrate, which results in a spatial alignment of the conductive stripes in both grating structures and formation of the openings in the shutter for the light transmission. A flat panel display having video and color capabilities and comprising two-dimensional matrix of such shutters is disclosed. To implement passive matrix driving architecture, each pixel of the display contains a thin-film diode and a thin-film resistor to eliminate cross talk between the pixels. Both the transmissive and reflective modes of the display operation are proposed. A sequential pulsed illumination with the light emitting diodes of three major colors is used to produce the color in the display. Another approach in making a flat panel display, capable of operating in both transmissive and reflective mode, is disclosed in which two-terminal electrical control of the pixels produces effect of bistability in positioning of the membrane relative to the substrate and thereby provides a memory effect, which allows one to hold the “on”-state of each pixel for almost the entire frame time and thus increase the display brightness.
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公开(公告)号：US06721077B2
公开(公告)日：2004-04-13
申请号：US09951086
申请日：2001-09-11
IPC分类号： G02F107
CPC分类号： G02F1/135
摘要： An optically addressed spatial light modulator may be formed with an integrated light emitting device display. The light emitting device display may be formed of a size and cost that optimizes the overall modulator design. In addition, by integrating the modulator and display devices, the overall size of the spatial light modulator may be reduced in some embodiments.
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公开(公告)号：US06661555B2
公开(公告)日：2003-12-09
申请号：US10166393
申请日：2002-06-11
申请人： Tomohiko Masuda , Ken Matsubara , Isao Doi , Yasuyuki Hiromoto
发明人： Tomohiko Masuda , Ken Matsubara , Isao Doi , Yasuyuki Hiromoto
IPC分类号： G02F107
CPC分类号： G02F1/0316 , G02F1/0322 , G02F1/0551
摘要： A light shutter device including a group of light shutter elements 31a, 31b 31c and 31d formed on a light shutter chip 30 made of PLZT has a construction in which an electrode gap is set wider in a element in which an electric field acts more strongly to equalize half wavelength voltages of elements almost to the same level since electric fields acting on the elements are different in strength from each other even under a prescribed voltage applied between a common electrode 32 and each of individual electrodes 33. An electrode gap of an element 31c having a weaker electric field is comparatively set narrower, whereas an electrode gap of an element 31d having a stronger electric field is set comparatively wider. Moreover, a shape of electrodes of each element are altered so as to make half wavelength voltages of elements almost equal.
摘要翻译： 包括形成在由PLZT制成的光快门芯片30上的一组光快门元件31a，31b 31c和31d的光快门装置具有这样的结构，其中，电场间隙在电场作用更强烈的元件中被设定得更宽， 即使在施加在公共电极32和各个电极33之间的规定电压下，作用在元件上的电场的强度彼此不同，元件的半波长电压几乎达到同一水平。均匀元件31c的电极间隙 具有较弱电场的电场相对较窄，而具有较强电场的元件31d的电极间隙设定得比较宽。 此外，改变每个元件的电极形状，使得元件的半波长电压几乎相等。
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4.发明授权公开(公告)号：US06317247B1
公开(公告)日：2001-11-13
申请号：US09204218
申请日：1998-12-02
申请人： Choong Reul Yang , Wol Yon Hwang , Hyun Hah Hong , Sun Gyu Han , Heuk Park
发明人： Choong Reul Yang , Wol Yon Hwang , Hyun Hah Hong , Sun Gyu Han , Heuk Park
IPC分类号： G02F107
CPC分类号： G02F1/0123 , G02F2001/212
摘要： A bias voltage stabilizing method for an electricity-optical modulator based on an off-level sampling is disclosed. The method includes the steps of a first step for detecting an electric signal by feed-back an output optical signal of a MZ optical modulator, performing a sample and hold for an OFF level and converting the signal into a digital data, a second step for receiving the sample and hold data with respect to the OFF level, controlling a bias value by performing an up and down count so that a minimum operation level is maintained at near a zero level of an output optical signal based on a binary data and a current data value, and adjusting a bias value, and a third step for outputting a bias control voltage of an optical modulator by converting the bias value controlled by the up and down count into an analog signal, for thereby controlling an adaptive bias voltage irrespective of a traffic characteristic of a signal by selectively extracting an OFF level of an output light, measuring the thusly extracted level and minimizing the value for thereby controlling a bias voltage.
摘要翻译： 公开了一种基于离线采样的电光调制器的偏压稳定方法。 该方法包括以下步骤：第一步骤，用于通过反馈MZ光调制器的输出光信号来检测电信号，执行采样并保持OFF电平并将该信号转换成数字数据;第二步骤 接收采样并保持相对于OFF电平的数据，通过执行上下计数来控制偏置值，使得基于二进制数据和电流的最小操作电平保持在输出光信号的零电平附近 数据值和调整偏置值，以及第三步骤，用于通过将由上升和下调计数控制的偏置值转换为模拟信号来输出光调制器的偏置控制电压，从而控制自适应偏置电压，而不管 通过选择性地提取输出光的OFF电平，测量由此提取的电平并使该值最小化从而控制偏置电压，来产生信号的交通特性。
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5.发明授权公开(公告)号：US06804037B1
公开(公告)日：2004-10-12
申请号：US09711651
申请日：2000-11-13
申请人： Keiichi Nito , Toru Udaka
发明人： Keiichi Nito , Toru Udaka
IPC分类号： G02F107
CPC分类号： G02F1/13725 , G02F1/13318 , G02F1/133528 , G02F2001/13312 , G02F2001/13712 , G09G2320/041
摘要： Disclosed are a light modulation apparatus including a liquid crystal device; and a polarizing plate disposed in an optical path of light made incident on said liquid crystal device; wherein said liquid crystal device is of a guest-host type using a negative type liquid crystal as a host material, an image pickup apparatus using the light modulation apparatus, and methods of driving the light modulation apparatus and image pickup apparatus.
摘要翻译： 公开了一种包括液晶装置的光调制装置; 以及设置在入射在所述液晶装置上的光的光路中的偏振片; 其中所述液晶装置是使用负型液晶作为主体材料的客体主体型，使用该光调制装置的图像拾取装置，以及驱动光调制装置和图像拾取装置的方法。
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公开(公告)号：US06717710B2
公开(公告)日：2004-04-06
申请号：US10046349
申请日：2002-01-14
IPC分类号： G02F107
CPC分类号： G02F1/025
摘要： An electro-modulating device for modulating light from a light source, as part of an opto-electronic communication network has a modulating medium for modulating light passing therethrough by varying an electric field applied across the modulating medium, an optical input-output surface, a light reflector, and electrodes for applying the varying electric field across the modulating medium. The input-output surface, the medium and the reflector are arranged so that light enters the medium through the input-output surface, travels through the medium towards the reflector, is reflected by the reflector to travel back through the medium towards the input-output surface, and exits the medium through the input-output surface. The electric field is transverse to light traversing the medium between the input-out surface and the reflector, to make it easier to couple an optic fiber to the input-output surface of the modulating medium.
摘要翻译： 用于调制来自光源的光作为光电通信网络的一部分的电调制装置具有用于通过改变施加在调制介质上的电场来调制通过其中的光的调制介质，光输入输出表面， 光反射器和用于在调制介质上施加变化的电场的电极。 输入输出表面，介质和反射器被布置成使得光通过输入 - 输出表面进入介质，穿过介质朝着反射器行进，被反射器反射回到通过介质朝向输入 - 输出 表面，并通过输入 - 输出表面离开介质。 电场横穿于穿过输入表面和反射器之间的介质的光，使得更容易将光纤耦合到调制介质的输入 - 输出表面。
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公开(公告)号：US06504642B1
公开(公告)日：2003-01-07
申请号：US09663103
申请日：2000-09-15
IPC分类号： G02F107
CPC分类号： G02F1/31 , G02F1/1326 , G02F1/13363 , G02F1/13471 , G02F1/1393 , G02F2201/16 , G02F2203/06
摘要： A polarization independent optical device is provided wherein the device has two optical paths that include one or more birefringent crystals, a electrically controllable rotator, and a fixed waveplate. The device may operate as a switch, attenuator, coupler, or polarization mode dispersion compensator. The device may also include several folded path embodiments, a multifunctional embodiment, and a temperature insensitive embodiment.
摘要翻译： 提供了一种偏振无关光学器件，其中该器件具有包括一个或多个双折射晶体，电可控旋转器和固定波片的两个光路。 该器件可以作为开关，衰减器，耦合器或偏振模色散补偿器工作。 该装置还可以包括多个折叠路径实施例，多功能实施例和不敏感的实施例。
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公开(公告)号：US06330100B2
公开(公告)日：2001-12-11
申请号：US09778059
申请日：2001-02-06
IPC分类号： G02F107
CPC分类号： G02F1/133555 , G02F1/133621 , G02F1/13363 , G02F1/13439 , G02F2001/133638 , G02F2203/09
摘要： A transflective color display having apertures in reflective electrodes through which light from a backlight (9) passes in the transmissive mode. The switching behavior for both the reflective and the transmissive mode is made identical by introducing a retardation plate (11). The transmission efficiency is further increased by using only a monochrome green mode in transmission.
摘要翻译： 一种透反射彩色显示器，其具有在反射电极中的孔径，来自背光源（9）的光以透射模式通过。 通过引入相位差板（11）使反射和透射模式的切换行为相同。 通过在传输中仅使用单色绿色模式来进一步提高传输效率。
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9.发明授权公开(公告)号：US06594064B2
公开(公告)日：2003-07-15
申请号：US09832198
申请日：2001-04-11
申请人： Yukiya Hirabayashi
发明人： Yukiya Hirabayashi
IPC分类号： G02F107
CPC分类号： G02F1/136209 , G02F1/136213 , G02F2001/13613 , G02F2202/105
摘要： To prevent the substrate floating effect that is caused when a transistor channel region fabricated of a monocrystal silicon layer covered with an insulator is in a floating state, and to stabilize the electrical characteristics of the transistor. A channel region of a semiconductor layer includes an extension portion. The end of the extension portion is connected to a contact hole. The contact hole is in turn connected to an interconnect line. The interconnect line is configured with one end thereof connected to the contact hole and with the other end connected to a contact hole leading to a light-shielding layer.
摘要翻译： 为了防止在由绝缘体覆盖的单晶硅层制造的晶体管沟道区域处于浮置状态时产生的衬底浮置效应，并且稳定晶体管的电特性。 半导体层的沟道区域包括延伸部分。 延伸部分的端部连接到接触孔。 接触孔又连接到互连线。 互连线被构造成其一端连接到接触孔，另一端连接到通向遮光层的接触孔。
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公开(公告)号：US06535321B2
公开(公告)日：2003-03-18
申请号：US10053862
申请日：2002-01-22
申请人： Feiling Wang , Gene H. Haertling
发明人： Feiling Wang , Gene H. Haertling
IPC分类号： G02F107
CPC分类号： G02F1/21 , G02F1/055 , G02F1/19 , Y10T428/24942
摘要： A solid state device used to modulate the intensity of reflected or transmitted light by modulating with an external voltage the optical thickness of a thin film ferroelectric placed in an etalon cavity is disclosed. The device is constructed by selecting a generally planar supporting substrate, preferably silicon or sapphire in order to be compatible with silicon integrated circuits. A dielectric stack consisting of alternating layers of different index of refraction materials, also specifically selected to be compatible with later growth of the thin film ferroelectric, is deposited thereon to form a partially reflective and partially transmitting mirror, followed by a transparent electrically conductive layer. The thin film ferroelectric is deposited on the conductive layer, followed by a second transparent conductive layer and a second dielectric stack. Leads are connected to the conductive layers and in turn to a voltage generator. In one version of the invention, the functions of both the second (top) electrically conductive layer and dielectric stack are fulfilled by using a semi-transparent conducting film. In another version, the functions of both the first (bottom) electrically conductive layer and dielectric stack are also fulfilled by using a, preferably, highly reflective conducting film.
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