-
公开(公告)号：US4572616A
公开(公告)日：1986-02-25
申请号：US406871
申请日：1982-08-10
IPC分类号： G02B26/06 , G02F1/1343 , G02F1/1347 , G02F1/29 , G02F1/133
CPC分类号： G02B26/06 , G02F1/13471 , G02F1/29 , G02F1/134309 , G02F2001/294 , G02F2203/28
摘要： A liquid crystal adaptive lens system wherein the index of refraction profile of the liquid crystal is controlled electrically to bring entering light to focus.
摘要翻译： 一种液晶自适应透镜系统，其中液晶的折射曲线被电子控制以使入射光聚焦。
-
公开(公告)号：US4099207A
公开(公告)日：1978-07-04
申请号：US760904
申请日：1977-01-21
IPC分类号： G02F1/11 , G06K9/20 , G06K9/36 , G06K9/52 , G06K9/60 , G08B13/18 , H04N3/10 , H04N3/14 , G06K9/02 , H01L31/08
CPC分类号： H04N3/10 , G02F1/11 , G06K9/2009 , G06K9/36 , G06K9/52 , G06K9/60 , G08B13/18 , G08B13/1961 , G08B13/19634
摘要： Method and apparatus for directly converting between optical images and the spatial Fourier transforms of optical images by interacting sound waves and light. Controlled sound waves couple with optical images, and electrical signals may be derived from this coupling which are functions of the spatial Fourier transforms of the entire optical images. In a reverse process, optical images are obtained directly by coupling controlled sound waves with electrical signals which are a function of the spatial Fourier transforms of the optical images and with light.
摘要翻译： 用于通过相互作用的声波和光直接转换光学图像和光学图像的空间傅里叶变换的方法和装置。 控制的声波与光学图像耦合，并且电信号可以从作为整个光学图像的空间傅里叶变换的函数的该耦合导出。 在相反的过程中，通过将受控声波与电信号相耦合来获得光学图像，电信号是光学图像和光的空间傅里叶变换的函数。
-
公开(公告)号：US4053934A
公开(公告)日：1977-10-11
申请号：US576433
申请日：1975-05-12
CPC分类号： G08B13/19626 , G02B27/40 , G02B7/365 , G08B13/1961 , G08B13/19634
摘要： Method and apparatus for measuring the quality and sharpness of images and for using the measurement results to control parameters such as camera and projector focusing, range finding, optical system modifications and the like. In one embodiment, an image is formed on a medium which has an electrical property that varies predictably with the sharpness of an image incident on it. The property is measured and the derived electrical signal controls automatic focusing of objective and projection lenses, range finder settings, and the like. The invention relies on the discovery of an interaction between images, strain waves and electrical properties in certain devices which allows deriving an electrical signal whose magnitude corresponds to high spatial frequency Fourier components of the image. In addition to other useful characteristics, the electrical signal is at a maximum when the overall sharpness of the image is high and drops off significantly as the image becomes blurred. Alternately, high frequency components of the spatial Fourier transform of images are found by other means, e.g., optically, and the magnitude of these components is used as an indication of the sharpness of the images, and of other parameters of optical systems.
摘要翻译： 用于测量图像的质量和清晰度以及使用测量结果来控制诸如照相机和投影仪聚焦，测距，光学系统修改等参数的方法和装置。 在一个实施例中，在具有随着入射到其上的图像的清晰度可预测地变化的电特性的介质上形成图像。 测量属性，导出的电信号控制物镜和投影镜头的自动聚焦，测距仪设置等。 本发明依赖于在某些设备中发现图像，应变波和电特性之间的相互作用，其允许导出其幅度对应于图像的高空间频率傅立叶分量的电信号。 除了其他有用的特征之外，当图像的整体清晰度高时，电信号是最大的，并且随着图像变得模糊而显着降低。 或者，图像的空间傅里叶变换的高频分量通过其它方式例如光学地找到，并且这些分量的大小用作图像的清晰度以及光学系统的其它参数的指示。
-
公开(公告)号：US4063281A
公开(公告)日：1977-12-13
申请号：US499606
申请日：1974-08-22
IPC分类号： G02F1/11 , G06K9/20 , G06K9/36 , G06K9/52 , G06K9/60 , G08B13/194 , H04N3/10 , G08B13/24 , H01L41/08 , H04N5/74
CPC分类号： G08B13/19602 , G02F1/11 , G06K9/2009 , G06K9/36 , G06K9/522 , G06K9/60 , G08B13/19634 , H04N3/10
摘要： Method and apparatus for directly converting between an image and the spatial or temporal Fourier transform thereof. To convert an image into its Fourier transform representation, the image interacts with strain waves in media that have electrical properties varying as a function of both the intensity pattern of the image and strain waves in the media. The electrical properties are measured to derive signals representing Fourier series terms defining the image. The derived signals are used to detect motion (including motion in the plane of the image), for image stabilization and scaling, and for pattern recognition. A new DEFT device (Direct Electronic Fourier Transform) obtains a Fourier transform representation of an image by utilizing photon assisted tunnelling current through an isolator film junction between two thin conductor films. Another new DEFT device provides spatial scanning similar to television raster scanning but utilizing completely different principles. Still another new DEFT device generates a two-dimensional spatial Fourier transform representation of an image without the need for two-dimensional scanning of the strain wave. An image is reconstructed from electrical signals obtained as described above by interacting uniform (but not necessarily coherent) light with strain waves that are a function of these electrical signals.
摘要翻译： 用于在图像与其空间或时间傅立叶变换之间直接转换的方法和装置。 为了将图像转换成其傅里叶变换表示，图像与介质中的应变波相互作用，其具有随介质中的图像的强度图案和应变波两者而变化的电特性。 测量电性能以导出表示定义图像的傅立叶级数项的信号。 导出的信号用于检测运动（包括图像平面中的运动），用于图像稳定和缩放以及模式识别。 新的DEFT器件（直接电子傅里叶变换）通过利用通过两个薄导体膜之间的隔离膜结的光子辅助隧穿电流获得图像的傅立叶变换表示。 另一种新的DEFT设备提供类似于电视光栅扫描的空间扫描，但是使用完全不同的原理。 另一个新的DEFT装置产生图像的二维空间傅里叶变换表示，而不需要对应变波进行二维扫描。 通过与作为这些电信号的函数的应变波相互作用均匀（但不一定相干）光，由如上所述获得的电信号重构图像。
-
公开(公告)号：US4040112A
公开(公告)日：1977-08-02
申请号：US684002
申请日：1976-05-07
CPC分类号： G08B13/1961 , G02F1/11 , G08B13/19634 , H04N3/10
摘要： Method and apparatus for directly converting between optical images and the spatial Fourier transforms of optical images by interacting sound waves and light. Controlled sound waves couple with optical images, and electrical signals may be derived from this coupling which are functions of the spatial Fourier transforms of the entire optical images. In a reverse process, optical images are obtained directly by coupling controlled sound waves with electrical signals which are a function of the spatial Fourier transforms of the optical images and with light.
-
公开(公告)号：US4040091A
公开(公告)日：1977-08-02
申请号：US493990
申请日：1974-08-01
IPC分类号： G02F1/11 , G06K9/20 , G06K9/36 , G06K9/52 , G06K9/60 , G08B13/18 , H04N3/10 , H04N3/14 , H01V7/00
CPC分类号： H04N3/10 , G02F1/11 , G06K9/2009 , G06K9/36 , G06K9/52 , G06K9/60 , G08B13/18 , G08B13/1961 , G08B13/19634
摘要： Method and apparatus for directly converting between optical images and the spatial Fourier transforms of optical images by interacting sound waves and light. Controlled sound waves couple with optical images, and electrical signals may be derived from this coupling which are functions of the spatial Fourier transforms of the entire optical images. In a reverse process, optical images are obtained directly by coupling controlled sound waves with electrical signals which are a function of the spatial Fourier transforms of the optical images and with light.
-
公开(公告)号：US5757522A
公开(公告)日：1998-05-26
申请号：US758901
申请日：1996-12-02
CPC分类号： G09G3/003 , G02F1/136277 , G02F1/292 , G03H1/08 , G03H1/26 , G09G3/3611 , G03H2225/23 , Y10S345/903 , Y10S359/90
摘要： A display method for producing a plurality of different views of an object scene simultaneously is provided. A series of two-dimensional projections of an object is produced for the plane of a display device. Wavefront interference information, independent of the two-dimensional projections is produced for an intermediate plane. The two-dimensional projections and the wavefront interference information are combined to create a diffraction grating in the display device to provide a holographic image of the object scene from a number of positions relative to the display device.
摘要翻译： 提供了一种用于同时产生对象场景的多个不同视图的显示方法。 为显示装置的平面产生一系列对象的二维投影。 针对中间平面产生与二维投影无关的波前干涉信息。 二维投影和波前干涉信息被组合以在显示装置中产生衍射光栅，以从相对于显示装置的多个位置提供对象场景的全息图像。
-
公开(公告)号：US5581378A
公开(公告)日：1996-12-03
申请号：US011782
申请日：1993-02-01
IPC分类号： G02F1/1362 , G02F1/29 , G03H1/08 , G03H1/26 , G09G3/00 , G09G3/36 , G06F19/00 , H04N13/00 , H04N15/00
CPC分类号： G09G3/003 , G02F1/136277 , G02F1/292 , G03H1/08 , G03H1/26 , G09G3/3611 , G03H2225/23 , Y10S345/903 , Y10S359/90
摘要： A display device which is capable of producing a plurality of different views of an image simultaneously is provided. The display includes an array of semiconductor devices with an electro-optical material disposed over the array of semiconductor devices. The semiconductor devices include electrodes which are selectively activated to form refraction gratings in the electro-optical material. Each of the semiconductor devices also includes a processor layer which can determine a refraction grating which is necessary for generating a predetermined number of discrete images which are visible from a predetermined number of different vantage points or viewer positions. Since a different image is provided to each eye, the viewer is provided with a perception of depth such that a three-dimensional image is provided. In addition, since different images or at least different image perspectives are provided to different points, horizontal and/or vertical parallax of the display is attained.
摘要翻译： 提供能够同时产生图像的多个不同视图的显示装置。 显示器包括具有设置在半导体器件阵列上的电光材料的半导体器件的阵列。 半导体器件包括选择性地激活以在电光材料中形成折射光栅的电极。 每个半导体器件还包括处理器层，其可以确定对于从预定数量的不同有利位置或观察者位置可见的产生预定数量的离散图像所必需的折射光栅。 由于向每只眼睛提供了不同的图像，所以向观察者提供了深度的感知，使得提供三维图像。 此外，由于不同的图像或至少不同的图像透视被提供给不同的点，因此获得了显示器的水平和/或垂直视差。
-
公开(公告)号：US4813772A
公开(公告)日：1989-03-21
申请号：US94110
申请日：1987-09-08
CPC分类号： G06E1/00
摘要： Two electro-optical computer interface embodiments provide for one-way read only and two-way optical read and write. The two-way embodiment includes a main module having a shared memory, and a processor/controller and a main bus. A plurality of local processor modules each includes a local memory, a local processor, and a local bus. The processors are electrically joined by control conductors which provide for coordination and timing between local processors and the main processor. Each memory array has a film deposited on it by the Langmuir/Blodgett technique. The memory arrays are each illuminated by a pulsed laser or Q-switched laser. The film is responsive to the electric fields in the memory array cells for modulating the illumination light. The image is then read onto other memory arrays which are responsive to the illumination for transferring the data between memories.
摘要翻译： 两个电光计算机接口实施例提供单向只读和双向光学读写。 双向实施例包括具有共享存储器的主模块，以及处理器/控制器和主总线。 多个本地处理器模块各自包括本地存储器，本地处理器和本地总线。 处理器由控制导体电连接，控制导体提供本地处理器和主处理器之间的协调和定时。 每个存储器阵列具有通过Langmuir / Blodgett技术沉积在其上的膜。 存储器阵列都被脉冲激光器或Q开关激光器照亮。 该膜响应于存储器阵列单元中的电场来调制照明光。 然后将图像读取到响应于用于在存储器之间传送数据的照明的其他存储器阵列。
-
10.发明授权Liquid crystal adaptive lens with closed-loop electrodes and related fabrication methods and control methods 失效具有闭环电极的液晶自适应透镜及相关制造方法和控制方法公开(公告)号：US06778246B2
公开(公告)日：2004-08-17
申请号：US10053940
申请日：2002-01-22
申请人： Yi Sun , Stephen T. Kowel , Gregory P. Nordin
发明人： Yi Sun , Stephen T. Kowel , Gregory P. Nordin
IPC分类号： G02F11343
CPC分类号： G02F1/29 , G02F1/134309 , G02F2001/294 , G02F2203/18
摘要： A liquid crystal adaptive lens (LCAL) includes a reference plate, a liquid crystal layer disposed in electrical communication with the reference plate, and a plurality of closed-loop electrodes disposed in electrical communication with the liquid crystal layer. The closed-loop electrodes are adapted to receive a variable control voltage such that the refractive index of at least a portion of the liquid crystal layer is adjustable such that light passing through the liquid crystal layer is capable of being redirected. By including closed-loop electrodes, the liquid crystal layer of the LCAL is capable of having a radially varying refractive index.
摘要翻译： 液晶自适应透镜（LCAL）包括参考板，与参考板电连通的液晶层和与液晶层电连通的多个闭环电极。 闭环电极适于接收可变控制电压，使得液晶层的至少一部分的折射率可调节，使得通过液晶层的光能够被重定向。 通过包括闭环电极，LCAL的液晶层能够具有径向变化的折射率。
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.019 秒)