Electro-optic waveguide deflector using a nonlinear optic film or
liquid-crystal overlay cell for use in an optical pickup head
    1.
    发明授权
    Electro-optic waveguide deflector using a nonlinear optic film or liquid-crystal overlay cell for use in an optical pickup head 失效
    电光波导偏转器,使用非线性光学膜或液晶覆盖单元,用于光学拾取头

    公开(公告)号:US5291567A

    公开(公告)日:1994-03-01

    申请号:US916422

    申请日:1992-07-21

    摘要: An electro-optic waveguide deflector appropriate for use in an optical pickup head uses any film exhibiting high second order susceptibility such as nonlinear optic organic Langmuir-Blodgett films or nonlinear optic organic poled polymer films, or a liquid-crystal overlay cell. The deflector comprises a base support, a planar electrode layer disposed on the base support, a first buffer layer atop the first electrode layer, and an optical waveguide layer overlying the first buffer layer and planar electrode. When nonlinear optic films are used to form the waveguide layer, a second buffer layer is disposed atop the waveguide layer, and a pair of spaced electrodes is disposed atop the second buffer layer. When a nematic-type liquid-crystal overlay cell is used, it is disposed atop a passive dielectric waveguide, and a pair of spaced electrodes is disposed on the under surface of the liquid-crystal cell cover plate. The spaced electrodes are shaped so that selectively applying an electric field causes deflection to vary with the applied voltage according to the geometrical configuration of the spaced electrodes.

    摘要翻译: 适用于光学拾取头的电光波导偏转器使用任何具有高二阶磁化率的膜,例如非线性光学有机Langmuir-Blodgett膜或非线性光学有机极化聚合物膜或液晶覆盖电池。 偏转器包括基座支撑件,设置在基座上的平面电极层,位于第一电极层顶部的第一缓冲层和覆盖第一缓冲层和平面电极的光波导层。 当使用非线性光学膜形成波导层时,第二缓冲层设置在波导层顶部,并且一对隔开的电极设置在第二缓冲层的顶部。 当使用向列型液晶覆盖单元时,将其设置在无源介质波导顶部,并且在液晶单元盖板的下表面上设置一对间隔开的电极。 间隔开的电极被成形为使得选择性地施加电场使得偏转根据所施加的电压根据间隔开的电极的几何构型而变化。

    Pulmonary nodule detection in a chest radiograph
    5.
    发明授权
    Pulmonary nodule detection in a chest radiograph 有权
    肺结核检测胸片

    公开(公告)号:US07623692B2

    公开(公告)日:2009-11-24

    申请号:US11187676

    申请日:2005-07-22

    IPC分类号: G06K9/00

    CPC分类号: G06T7/0012 G06T2207/30061

    摘要: A method of generating a pulmonary nodule image from a chest radiograph. The method includes the steps of: producing a map of a clear lung field; removing low frequency variation from the clear lung field to generate a level image; and performing at least one grayscale morphological operation on the level image to generate a nodule-bone image. Pulmonary nodules can be detected using the nodule-bone image by the further steps of: pulmonary nodules from a chest radiograph. The method includes the steps of: identifying candidate nodule locations in the nodule-bone image; segmenting a region around each candidate nodule location in the nodule-bone image; and using the features of the segmented region to determine if a candidate is a nodule.

    摘要翻译: 从胸部X光片产生肺结节图像的方法。 该方法包括以下步骤:产生清晰肺域的图; 从清除肺域去除低频变化以产生水平图像; 以及对所述水平图像执行至少一个灰度形态学运算以产生结节 - 骨图像。 肺结节可以使用结节 - 骨图像进一步检测:肺结核从胸部X光照片。 该方法包括以下步骤:识别结节 - 骨图像中的候选结节位置; 分割结节骨图像中每个候选结节位置周围的区域; 并使用分割区域的特征来确定候选者是否是结节。

    Stabilization of three-dimensional images in a scannerless range imaging system
    6.
    发明授权
    Stabilization of three-dimensional images in a scannerless range imaging system 有权
    在无扫描仪范围成像系统中稳定三维图像

    公开(公告)号:US06925195B2

    公开(公告)日:2005-08-02

    申请号:US10156530

    申请日:2002-05-28

    摘要: A method for generating a stabilized three-dimensional image from a scannerless range imaging system comprises the steps of acquiring a bundle of three or more phase offset images corresponding to modulated illumination reflected from a scene, whereby one or more of the phase offset images includes image motion relative to another phase offset image; searching for a stable chain of phase offset images in the image bundle, wherein a stable chain is a collection of images that is obtained by testing the phase offset images against a confidence measure that separates less severe correctable image motion from more severe image motion and then populating the stable chain only with those phase offset images that meet the confidence measure for correctable image motion; correcting for the image motion in the stable chain of images if a stable chain of at least three phase offset images is found to exist; and computing a stabilized three-dimensional image using the phase offset images from the stable chain of phase offset images.

    摘要翻译: 一种用于从无扫描仪范围成像系统生成稳定三维图像的方法包括以下步骤:获取与从场景反射的调制照明相对应的三个或更多个相位偏移图像的束,由此相位偏移图像中的一个或多个包括图像 相对于另一相位偏移图像的运动; 在图像束中搜索稳定的相位偏移图像链,其中稳定链是通过相对于将较不严格的可校正图像运动与更严重的图像运动分离的可信度测量来测量相位偏移图像获得的图像的集合,然后 仅使用满足可校正图像运动的置信度的相位偏移图像来填充稳定链; 如果存在至少三个相位偏移图像的稳定链,则校正图像的稳定链中的图像运动; 以及使用来自稳定的相位偏移图像链的相位偏移图像来计算稳定的三维图像。

    Method and apparatus for aligning a color scannerless range imaging system
    7.
    发明授权
    Method and apparatus for aligning a color scannerless range imaging system 有权
    用于对准彩色无扫描仪范围成像系统的方法和装置

    公开(公告)号:US06410930B1

    公开(公告)日:2002-06-25

    申请号:US09645752

    申请日:2000-08-24

    IPC分类号: G01J350

    CPC分类号: G01S7/481 G01S17/89

    摘要: An alignment method is provided for a color scannerless range imaging system whereby the separate optical paths of colored texture and monochromatic range images may be precisely aligned. The range imaging system includes an illumination system for illuminating a scene with modulated infrared illumination, image forming optics for forming an image of the scene, optical means for forming first and second optical paths between the image forming optics and an image sensor, a transponder subject to modulation located in the first optical path for amplifying and converting infrared light to visible light to form a range image on the image sensor. The alignment method includes the steps of providing a target having alignment indicia that can be imaged in both infrared and visible regions of the spectrum, capturing an infrared image of the target using the first optical path, capturing a color image of the target using the second optical path, and adjusting at least one of the optical paths so that the captured images are coincident.

    摘要翻译: 提供了一种用于彩色无扫描范围成像系统的对准方法,由此可以精确对准彩色纹理和单色范围图像的单独光路。 范围成像系统包括用调制红外照明照明场景的照明系统,用于形成场景图像的图像形成光学器件,用于在成像光学器件和图像传感器之间形成第一和第二光路的光学装置,应答器对象 到位于第一光路中的调制,用于将红外光放大并转换成可见光,以在图像传感器上形成范围图像。 对准方法包括以下步骤:提供具有可以在光谱的红外和可见区域中成像的对准标记的目标,使用第一光路捕获目标的红外图像,使用第二光学捕获目标的彩色图像 光路,并且调整光路中的至少一个,使得所捕获的图像一致。

    Apparatus and method for inserting an updateable hidden image into an optical path
    8.
    发明授权
    Apparatus and method for inserting an updateable hidden image into an optical path 失效
    将可更新的隐藏图像插入到光路中的装置和方法

    公开(公告)号:US06624874B2

    公开(公告)日:2003-09-23

    申请号:US10027293

    申请日:2001-12-21

    IPC分类号: G03B2132

    摘要: An apparatus for optically embedding hidden data in a source image, wherein the hidden data is updateable in real-time, the apparatus includes (a) optical masks bearing a data image and an encoding carrier image either or both of which may be updated in real-time; (b) optical components for convolving, the data image with the encoding carrier image to produce a spatially dispersed data image; and (c) optical beam combiner for combining the spatially dispersed data image with the source image to produce a source image containing embedded hidden data.

    摘要翻译: 一种用于将隐藏数据光学地嵌入源图像中的装置,其中隐藏数据可实时更新,该装置包括(a)具有数据图像的光掩模和编码载体图像,其中一个或两个可以实际更新 -时间; (b)用于卷积的光学部件,具有编码载体图像的数据图像以产生空间分散的数据图像; 和(c)用于将空间分散的数据图像与源图像组合以产生包含嵌入的隐藏数据的源图像的光束组合器。

    Waveguide optical pick-up head using mach-zehnder interferometer
wavefront sensor apparatus and method
    9.
    发明授权
    Waveguide optical pick-up head using mach-zehnder interferometer wavefront sensor apparatus and method 失效
    波导光学拾波头采用Mach-Zehnder干涉仪波前传感器装置及方法

    公开(公告)号:US5390157A

    公开(公告)日:1995-02-14

    申请号:US913579

    申请日:1992-07-15

    IPC分类号: G02B7/00 G11B7/12 G11B7/135

    CPC分类号: G11B7/1245

    摘要: An integrated optic head contains a planar and a channel waveguide, a waveguide condensing lens, and integrated waveguide photodetectors. The main portion of the beam returning from the disk is focused by the lens onto an integrated waveguide photodetector to provide the data signal. A smaller portion of the beam is sampled by channel waveguide Mach-Zehnder (MZ) interferometers that measure the beam wavefront curvature to provide the focus error signal (FES). Additional channel waveguides provide reference signals for the interferometers and provide a means of measuring the tracking error signal (TES). The TES method includes subtracting light detected by one channel waveguide detector from light detected by another, which difference is the tracking error. The FES method includes obtaining the difference in the ratios of the light emanating from two interferometers divided by the light emanating from their respective channel waveguides, which difference in ratios is the focus error.

    摘要翻译: 集成光学头包含平面和沟道波导,波导聚焦透镜和集成波导光电探测器。 从光盘返回的光束的主要部分被透镜聚焦到集成波导光电检测器上以提供数据信号。 光束的较小部分由测量光束波前曲率以提供聚焦误差信号(FES)的通道波导马赫 - 曾德(MZ)干涉仪采样。 附加通道波导为干涉仪提供参考信号,并提供测量跟踪误差信号(TES)的方法。 TES方法包括从由一个波导检测器检测的光中减去由另一个波导检测的光,该差是跟踪误差。 FES方法包括获得从两个干涉仪发出的光的比值除以它们各自的通道波导发出的光的差异,该比率的差是焦点误差。

    OLED device having improved light output
    10.
    发明授权
    OLED device having improved light output 有权
    具有改善的光输出的OLED器件

    公开(公告)号:US07548021B2

    公开(公告)日:2009-06-16

    申请号:US11232559

    申请日:2005-09-22

    IPC分类号: H01J1/62 H01J63/04

    摘要: An organic light-emitting diode (OLED) device, comprising: first and second transparent electrodes, and one or more layers of organic material formed between the first and second transparent electrodes, the layers of organic material including one or more light-emitting layers; a reflective layer having a surface plasmon-polariton-supporting reflective surface located on a side of either of the first or second transparent electrodes opposite to the organic material layers; and a scattering layer in optical contact with the organic material layers and the electrodes. In certain embodiments, layer spacing is preferably designed such that the distance between the reflective surface and at least one of the one or more light-emitting layers is equal to or greater than 60 nm. Additionally, a low-index layer is preferably employed in various embodiments to improve device sharpness.

    摘要翻译: 一种有机发光二极管(OLED)器件,包括:第一和第二透明电极,以及形成在第一和第二透明电极之间的一层或多层有机材料,有机材料层包括一个或多个发光层; 反射层,其具有位于与所述有机材料层相对的所述第一或第二透明电极中的任一个的一侧的表面等离子体 - 极化子支撑反射表面; 以及与有机材料层和电极光学接触的散射层。 在某些实施例中,层间距优选地设计成使得反射表面与一个或多个发光层中的至少一个之间的距离等于或大于60nm。 此外,在各种实施例中优选使用低折射率层以提高器件清晰度。