中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

67 records (took 0.011 seconds)

    PHOTON ENTANGLEMENT ROUTER
    41.
    发明申请
    PHOTON ENTANGLEMENT ROUTER 有权

    公开(公告)号：US20170146407A1

    公开(公告)日：2017-05-25

    申请号：US15426364

    申请日：2017-02-07

    Applicant: GOVERNMENT OF THE UNITED STATES AS REPRESETNED BY THE SECRETARY OF THE AIR FORCE

    Inventor： DAVID H. HUGHES ,  REINHARD ERDMANN

    IPC: G01J4/02 ,  G02B27/28 ,  G02B5/30

    CPC classification number: G01J4/02 ,  G01J4/04 ,  G02B5/3083 ,  G02B27/283 ,  G02B27/286 ,  G02B27/288 ,  G02B2207/114

    Abstract: A photon entanglement router comprises a modified birefringent spectral filter followed by a polarization beam splitter (PBS). Frequency degenerate or non-degenerate entangled photons, generated by a collinear laser source and incident on one input port of the photon entanglement router, are comprised of congruent photons and/or incongruent photons. The invention adds a plurality of additional filter stacks at each output port such that they invert the action of the first birefringent stack at the input port. Intermediate output photons from the invention is input to two ports of an additional PBS where they are spatially projected according to their frequencies and polarizations. Two congruent photons of an entangled photon pair exit as an entangled pair in one direction, while two incongruent photons exit as an entangled pair in the orthogonal direction. If one photon is congruent and the other photon incongruent, the photons remain entangled but are spectrally divided into orthogonal directions. The invention's birefringent spectral filter accepts specific input frequencies from the ITU optical C-band grid for proper operation.

    Polarization information acquisition unit, image pickup apparatus including the same, polarization information acquisition method, and non-transitory computer-readable storage medium
    42.
    发明授权
    Polarization information acquisition unit, image pickup apparatus including the same, polarization information acquisition method, and non-transitory computer-readable storage medium 有权
    极化信息获取单元，包括该偏振信息获取单元的偏振信息获取方法和非暂时计算机可读存储介质

    公开(公告)号：US09506806B2

    公开(公告)日：2016-11-29

    申请号：US14643926

    申请日：2015-03-10

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Daisuke Sano

    IPC: G01J4/00 ,  G01J4/04 ,  G02B5/30 ,  G01J4/02

    CPC classification number: G01J4/04 ,  G01J4/02 ,  G01J2004/002 ,  G02B5/3083

    Abstract: An polarization information acquisition unit includes a phase adjuster configured to adjust phases of two linearly polarized components of incident light, which oscillate in directions orthogonal to each other, a detector configured to transmit a polarized component oscillating in one direction and not to transmit a polarized component oscillating in a direction orthogonal to the one direction, the polarized components being included in light emitted from the phase adjuster, and a photoelectric convertor configured to photoelectrically convert a polarized component transmitted through the detector. The phase adjuster has at least three areas. The at least three areas include at least two areas having phase adjusting amounts different from each other, and at least two areas having an identical phase adjusting amounts and having slow axes whose directions are different from each other by 20 to 90 degrees inclusive.

    Abstract translation: 偏振信息获取单元包括：相位调整器，被配置为调节在彼此正交的方向上振荡的入射光的两个线偏振分量的相位;检测器，被配置为传输在一个方向上振荡的偏振分量，而不透射偏振分量 在与所述一个方向正交的方向上振荡，所述偏振分量包括在从所述相位调制器发出的光中，以及光电转换器，被配置为对透过所述检测器的偏振分量进行光电转换。 相位调节器至少有三个区域。 所述至少三个区域包括具有彼此不同的相位调整量的至少两个区域，以及具有相同相位调整量的至少两个区域，并且具有方向彼此相差20到90度的慢轴。

    Method for determining the adhesion of material layers on ceramic elements
    43.
    发明授权
    Method for determining the adhesion of material layers on ceramic elements 失效
    确定材料层对陶瓷元件的附着力的方法

    公开(公告)号：US6070459A

    公开(公告)日：2000-06-06

    申请号：US40102

    申请日：1998-03-17

    Applicant: Siegfried Nees ,  Harald Neumann ,  Frank Stanglmeier

    Inventor： Siegfried Nees ,  Harald Neumann ,  Frank Stanglmeier

    IPC: G01N27/409 ,  G01N17/00 ,  G01N19/04 ,  G01N27/26 ,  G01J4/02

    CPC classification number: G01N19/04

    Abstract: A method for determining the adhesion of material layers of any composition on sintered ceramic elements, in particular of material layers on sensor elements for determining gas constituents in gas mixtures. The coated ceramic elements are immersed in an immersion bath consisting of a protic acid, and then subjected to a shock-type heat treatment. Adhesion is then assessed.

    Abstract translation: 确定任何组合物的材料层在烧结陶瓷元件上，特别是用于确定气体混合物中的气体成分的传感器元件上的材料层的粘附性的方法。 将涂覆的陶瓷元件浸入由质子酸组成的浸渍浴中，然后进行冲击型热处理。 然后对附着力进行评估。

    Ceramic testing method
    44.
    发明授权
    Ceramic testing method 失效
    陶瓷测试方法

    公开(公告)号：US4559824A

    公开(公告)日：1985-12-24

    申请号：US613534

    申请日：1984-05-24

    Applicant: Takao Soma ,  Minoru Matsui

    Inventor： Takao Soma ,  Minoru Matsui

    IPC: C04B35/48 ,  G01N17/00 ,  G01N25/02 ,  G01N33/38 ,  G01J4/02

    CPC classification number: G01N33/388 ,  G01N17/00

    Abstract: A method for determining an amount of non-stabilized zirconia in a ceramic specimen involves subjecting the ceramic specimen to an environment having a controlled temperature and humidity and measuring mechanical and/or chemical properties of the specimen to determine if any deterioration of the specimen has occurred.

    Abstract translation: 用于确定陶瓷样品中的非稳定化氧化锆的量的方法包括将陶瓷样品经受温度和湿度受控的环境，并测量样品的机械和/或化学性质，以确定样品是否发生变质 。

    Navigation aid
    45.
    发明授权
    Navigation aid 失效
    导航辅助

    公开(公告)号：US3917408A

    公开(公告)日：1975-11-04

    申请号：US33417473

    申请日：1973-02-12

    Applicant: US NAVY

    Inventor： STACHNIK WILLIAM J

    IPC: G01C17/34 ,  G01N21/21 ,  G01J4/02

    CPC classification number: G01C17/34 ,  G01N21/21

    Abstract: An apparatus for monitoring the underwater luminous field with an underwater vehicle, to determine, while submerged, the conditions of sea surface and cloud cover and locate the vehicle''s position by solar navigating techniques. The apparatus measures underwater polarization of solar light in magnitude and its spatial distribution as a function of time and thus determines the condition of sea surface and cloud cover, while submerged at operational depths.

    Abstract translation: 一种用水下航行器监测水下发光场的装置，通过太阳能导航技术来确定海面和云层的状况，并确定其位置。 该装置测量太阳光的水中极化及其空间分布作为时间的函数，从而确定了海面和云层的状况，同时淹没在操作深度。

    MATRIX-BASED CHARACTERIZATION AND MEASUREMENTS FOR SEMICONDUCTOR THIN-FILM MATERIAL
    47.
    发明公开
    MATRIX-BASED CHARACTERIZATION AND MEASUREMENTS FOR SEMICONDUCTOR THIN-FILM MATERIAL 审中-公开

    公开(公告)号：US20240003819A1

    公开(公告)日：2024-01-04

    申请号：US18034875

    申请日：2021-10-29

    Applicant: The Board of Trustees of the Leland Stanford Junior University

    Inventor： Thaibao Phan ,  Evan W. Wang ,  Jonathan A. Fan

    IPC: G01N21/84 ,  G01N21/21 ,  G01N21/95 ,  G01J4/02

    CPC classification number: G01N21/8422 ,  G01J4/02 ,  G01N21/95 ,  G01N21/21

    Abstract: Certain examples are directed to methods for detection of anomalies in semiconductor thin-film materials, such as strains, defects and the like, that may precipitate defects in semiconductor processing steps and may adversely impact device and system-level functionality, processing, and yields. Certain methods use filtering optics to provide a set of filter-separated light beams respectively associated with different polarization states of polarized light directed towards a semiconductor-related material sample, and providing a set of sample-characterizing response data based on factors such as sets of polarization-state values, different wavelengths associated with the polarization states, and/or light-incidence angles characterizing separation of the different polarization states. Based on these factors, the types and severities of such anomalies may be analyzed and the related defects remedied.

    Polarization decorrelation time imaging
    50.
    发明授权
    Polarization decorrelation time imaging 有权

    公开(公告)号：US10794767B1

    公开(公告)日：2020-10-06

    申请号：US16518571

    申请日：2019-07-22

    Applicant: BAE Systems Information and Electronic Systems Integration Inc.

    Inventor： Andrew N. Acker

    IPC: G01J4/02 ,  G06K9/00 ,  G06K9/46 ,  H01S3/13 ,  G01J4/00

    Abstract: An object detection system uses a change in a linear polarization statistic between a first image at a first time and a second image at a second time to determine the presence or the likelihood of an object beneath a surface. The presence of the object may be determined by regions of anomalously high changes in the polarization statistic. The system may use a polarization change detection detector which may simultaneously capture images in multiple polarization channels. Further, the polarization change detection detector may be coupled with a laser interferometry system. Further, the polarization change detection detector may be used to capture a time series of images to determine the polarization decorrelation time for each pixel in the field of view to provide additional detail regarding an object detected beneath the surface.

Patent Agency Ranking