中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

53 records (took 0.021 seconds)

    Simultaneous 4-stokes parameter determination using a single digital image
    11.
    发明申请
    Simultaneous 4-stokes parameter determination using a single digital image 失效
    使用单个数字图像同时进行4-stokes参数确定

    公开(公告)号：US20050225761A1

    公开(公告)日：2005-10-13

    申请号：US10822355

    申请日：2004-04-13

    Applicant: Grant Gerhart ,  Roy Matchko

    Inventor： Grant Gerhart ,  Roy Matchko

    IPC: G01J4/00 ,  G01J4/04

    CPC classification number: G01J4/04 ,  G01J2004/005

    Abstract: A method and apparatus for determining and displaying polarization profiles of points in a scene from a single imaging detector array, which utilizes a filter system comprised of a retarder, four linear polarizers, four lenses, a color filter, camera lens and CCD video camera. Light from points in a scene are transmitted through the system and exits with attenuated intensities unique for each wavelength of the light. A narrowband color filter selects the wavelength of interest. The four lenses in the system produce four images of the scene, which are recorded as a single CCD-image. The attenuated intensities in each of the four scene-images are used to calculate the Stokes parameters for selected points in the scene for the selected wavelength. The inherent problem of the retarder introducing a different phase differential for each individual wavelength transmitted through the optical element is solved by expressing the Stokes parameters explicitly as a function of wavelength. A computer program separates the four scene-images in the CCD-image, crops, registers them and calculates the Stokes parameters for each point in the cropped scene. A unique pseudo-color scheme that utilizes the Poincarè sphere is used for encoding and displaying polarization parameters. This scheme associates the RGB values of an image with the normalized values of the Stokes parameters. The primary purpose of the method, apparatus and pseudo-color scheme is to obtain the four Stokes parameters simultaneously for each point in a scene and to be able to create video images of changing polarization parameters in real time.

    Abstract translation: 一种用于从单个成像检测器阵列确定和显示场景中的点的偏振分布的方法和装置，其利用由延迟器，四个线性偏振器，四个透镜，滤色器，照相机镜头和CCD摄像机组成的滤波器系统。 来自场景中的光线通过系统传输，并以每个波长的光线独特的衰减强度退出。 窄带滤色器选择感兴趣的波长。 系统中的四个镜头产生四个场景图像，它们被记录为单个CCD图像。 四个场景图像中的每一个中的衰减强度用于计算所选波长的场景中所选点的斯托克斯参数。 通过将通过光学元件传输的每个单独波长引入不同相位差的延迟器的固有问题通过将波斯函数明确表示为斯托克斯参数来解决。 计算机程序分离CCD图像中的四个场景图像，作物，注册它们，并计算裁剪场景中每个点的斯托克斯参数。 使用Poincarè球体的独特的伪彩色方案用于编码和显示偏振参数。 该方案将图像的RGB值与Stokes参数的归一化值相关联。 该方法，装置和伪彩色方案的主要目的是为场景中的每个点同时获得四个斯托克斯参数，并能够实时创建改变极化参数的视频图像。

    Optical beam monitoring device
    12.
    发明授权
    Optical beam monitoring device 失效
    光束监控装置

    公开(公告)号：US06445856B1

    公开(公告)日：2002-09-03

    申请号：US09871676

    申请日：2001-06-04

    Applicant: Long Yang

    Inventor： Long Yang

    IPC: G02B626

    CPC classification number: G02B6/2746 ,  G01J1/4257 ,  G01J2004/005 ,  G02B6/2937 ,  G02B6/327 ,  G02B6/4213 ,  G02B6/4215 ,  G02B6/4251 ,  G02B6/4259 ,  G02B6/4286

    Abstract: The most common method of testing the various aspects of light traveling in a waveguide includes tapping a portion of the light and directing the tapped portion at an appropriate sensor. Conventionally, the simplest method for tapping light utilized a fused fiber coupler; however, even this method requires additional fiber splicing and management steps that increase manufacturing costs. The present invention uses a beam splitter, positioned inside a centerpiece sleeve in the path of the light, to direct a portion of the beam through the wall of the centerpiece sleeve to a monitoring sensor, preferably a photodiode. The centerpiece sleeve includes a window, which is at least partially transparent to the light, enabling the tapped portion of the light to reach the monitoring sensor. Preferably, the centerpiece sleeve is manufactured entirely out of glass.

    Abstract translation: 测试在波导中行进的光的各个方面的最常见的方法包括敲击光的一部分并且将敲击的部分引导到适当的传感器。 通常，采用熔化光纤耦合器的最简单的轻击方法 然而，即使这种方法需要额外的光纤拼接和管理步骤来增加制造成本。 本发明使用位于光路径内的中心套筒内部的分束器，以将束的一部分穿过中心套筒的壁引导到监测传感器，优选光电二极管。 中心套筒包括至少部分地透光的窗户，使得轻敲的部分能够到达监视传感器。 优选地，中心套筒完全由玻璃制成。

    Apparatus and method for navigation
    14.
    发明授权
    Apparatus and method for navigation 有权
    导航装置及方法

    公开(公告)号：US09109947B2

    公开(公告)日：2015-08-18

    申请号：US13421530

    申请日：2012-03-15

    Applicant: Shlomo Vorovitchik

    Inventor： Shlomo Vorovitchik

    IPC: G01C21/02 ,  G01J4/04 ,  G01C17/34 ,  G01J4/00

    CPC classification number: G01J4/04 ,  G01C17/34 ,  G01C21/02 ,  G01J2004/005

    Abstract: An apparatus and system for use in determining location of a celestial body are presented. The apparatus comprises: a polarizer comprising an array of polarized light filter cells and a light sensor array. The array of polarized light filter cells comprises at least a first polarization direction and a second polarization direction different from said first polarization direction. And the polarizer thereby produces polarized light of at least first and second different polarizations. The light sensor array is configured to receive the polarized light from the polarizer and produce data indicative of a pattern of at least one of light polarization intensity and direction. The pattern is indicative of at least one of azimuth and elevation of the celestial body to be located.

    Abstract translation: 提出了一种用于确定天体位置的装置和系统。 该装置包括：偏振器，包括偏振光滤波器单元阵列和光传感器阵列。 偏振光滤波器单元的阵列至少包括与所述第一偏振方向不同的第一偏振方向和第二偏振方向。 并且偏振器由此产生至少第一和第二不同偏振的偏振光。 光传感器阵列被配置为接收来自偏振器的偏振光，并且产生指示光偏振强度和方向中的至少一个的图案的数据。 该图案表示要定位的天体的方位角和仰角中的至少一个。

    Simultaneous 4-stokes parameter determination using a single digital image
    15.
    发明授权
    Simultaneous 4-stokes parameter determination using a single digital image 失效
    使用单个数字图像同时进行4-stokes参数确定

    公开(公告)号：US07173698B2

    公开(公告)日：2007-02-06

    申请号：US10822355

    申请日：2004-04-13

    Applicant: Grant Gerhart ,  Roy Matchko

    Inventor： Grant Gerhart ,  Roy Matchko

    IPC: G01J4/00

    CPC classification number: G01J4/04 ,  G01J2004/005

    Abstract: A method for determining and displaying polarization profiles of points in a scene from a single imaging detector array, which utilizes a filter system comprised of a retarder, four linear polarizers, four lenses, a color filter, camera lens and CCD video camera. Light from points in a scene are transmitted through the system and exits with attenuated intensities unique for each wavelength of the light. A narrowband color filter selects the wavelength of interest. The four lenses in the system produce four images of the scene, which are recorded as a single CCD-image. The attenuated intensities in each of the four scene-images are used to calculate the Stokes parameters for selected points in the scene for the selected wavelength. A unique pseudo-color scheme that utilizes the Poincarè sphere is used for encoding and displaying polarization parameters.

    Abstract translation: 一种用于从单个成像检测器阵列确定和显示场景中的点的偏振轮廓的方法，该方法利用由延迟器，四个线性偏振器，四个透镜，滤色镜，照相机镜头和CCD摄像机组成的滤波器系统。 来自场景中的光线通过系统传输，并以每个波长的光线独特的衰减强度退出。 窄带滤色器选择感兴趣的波长。 系统中的四个镜头产生四个场景图像，它们被记录为单个CCD图像。 四个场景图像中的每一个中的衰减强度用于计算所选波长的场景中所选点的斯托克斯参数。 使用Poincarè球体的独特的伪彩色方案用于编码和显示偏振参数。

    SYSTEM FOR MEASURING OPTICAL PARAMETERS OF MATERIALS
    16.
    发明申请
    SYSTEM FOR MEASURING OPTICAL PARAMETERS OF MATERIALS 审中-公开
    测量材料光学参数的系统

    公开(公告)号：WO2017149397A1

    公开(公告)日：2017-09-08

    申请号：PCT/IB2017/050028

    申请日：2017-01-05

    Applicant: DASARI, Hanumesh Kumar ,  CHIYEDU, Nagaraja

    Inventor： DASARI, Hanumesh Kumar ,  CHIYEDU, Nagaraja

    IPC: G01N21/21

    CPC classification number: G01N21/21 ,  G01J4/04 ,  G01J2004/005 ,  G01N21/255

    Abstract: Aspects of the present disclosure relate to computer based compact optical measuring system for obtaining various optical properties including optical rotation, magnitude of optical rotation, optical absorption and transmittance of optically active organic and inorganic substances at several wavelengths, in which the need for electro optic modulation or magneto optic modulation is obviated. The disclosed system can be configured to accomplish non- destructive method of measuring both rotatory polarization and optical absorption (or transmittance) of chemical substances at several wavelengths. The disclosed system can be used as a spectropolarimeter as well as spectrophotometer by providing simple modifications to the components thereof.

    Abstract translation: 本公开的方面涉及用于获得各种光学性质的基于计算机的小型光学测量系统，所述光学性质包括光旋转，光学旋转的大小，光学活性的有机和无机物质在多个波长处的光学吸收和透射率， 其中不需要电光调制或磁光调制。 所公开的系统可以被配置为实现测量多个波长处的化学物质的旋光偏振和光吸收（或透射比）的非破坏性方法。 所公开的系统可以通过对其组分进行简单的改变而用作分光偏振计以及分光光度计。

    VORRICHTUNG UND VERFAHREN ZUR BESTIMMUNG EINES POLARISATIONSZUSTANDES EINER ELEKTROMAGNETISCHEN WELLE
    17.
    发明申请
    VORRICHTUNG UND VERFAHREN ZUR BESTIMMUNG EINES POLARISATIONSZUSTANDES EINER ELEKTROMAGNETISCHEN WELLE 审中-公开

    公开(公告)号：WO2019053207A1

    公开(公告)日：2019-03-21

    申请号：PCT/EP2018/074923

    申请日：2018-09-14

    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

    Inventor： BAIER, Moritz

    IPC: G01J4/04 ,  G01J4/00

    CPC classification number: G01J4/04 ,  G01J2004/005

    Abstract: Die Erfindung betrifft eine Vorrichtung zur Bestimmung eines Polarisationszustandes einer elektromagnetischen Welle, mit einem Leistungsteiler (11), der eine elektromagnetische Eingangswelle in mindestens drei Teilwellen aufteilt; und mindestens drei Polarisationskonverter (31-33) zum Verändern des Polarisationszustandes der Teilwellen, wobei jeweils einer der Polarisationskonverter (31-33) einer der drei Teilwellen zugeordnet ist. Erfindungsgemäß umfasst die Vorrichtung einen Ausgangskoppler (12), dem die Teilwellen nach Durchlaufen des jeweiligen Polarisationskonverters (31-33) zugeführt werden und der mindestens drei Ausgänge (141, 142, 143) aufweist, wobei der Ausgangskoppler (12) so ausgebildet und die Polarisationskonverter (31-33) derart angeordnet und konfiguriert sind, dass aus den Ausgängen (141, 142, 143) des Ausgangskopplers (12) austretende Ausgangswellen eine Intensität aufweisen, die jeweils abhängig von einem der Stokes-Parameter (S1, S2, S3) der Eingangswelle sind. Die Erfindung betrifft auch ein Verfahren zur Bestimmung eines Polarisationszustandes einer elektromagnetischen Welle.

    APPARATUS AND METHOD FOR NAVIGATION
    18.
    发明申请
    APPARATUS AND METHOD FOR NAVIGATION 审中-公开
    装置和导航方法

    公开(公告)号：WO2011036662A1

    公开(公告)日：2011-03-31

    申请号：PCT/IL2010/000780

    申请日：2010-09-21

    Applicant: VOROVITCHIK, Shlomo

    Inventor： VOROVITCHIK, Shlomo

    IPC: G01J4/00

    CPC classification number: G01J4/04 ,  G01C17/34 ,  G01C21/02 ,  G01J2004/005

    Abstract: An apparatus comprising an array of polarized light filter cells, each cell has a first polarized filter having a first polarization direction and a second polarized filter having a second polarization direction, the second polarization direction different from the first polarization direction; an optical system to direct light onto the array of polarized light filters; and a first and second light sensors to produce data from light received through the first and second polarized filters respectively. Additionally, a method of directing light onto an array of polarized light filter cells, each cell having a first polarized filter having a first polarization direction and a second polarized filter having a second polarization direction different from the first polarization direction; producing data from light received through the first and second polarized filters by respective first and second light sensors; and deriving polarization pattern based on the data.

    Abstract translation: 一种包括偏振光滤波器单元阵列的装置，每个单元具有第一偏振方向的第一偏振滤光器和具有第二偏振方向的第二偏振方向，第二偏振方向与第一偏振方向不同; 将光引导到偏振光滤光器阵列上的光学系统; 以及分别通过第一和第二偏振滤光器接收的光产生数据的第一和第二光传感器。 另外，将光引导到偏振光滤波器单元的阵列上的方法，每个单元具有具有第一偏振方向的第一偏振滤光器和具有不同于第一偏振方向的第二偏振方向的第二偏振滤光器; 通过第一和第二光传感器从通过第一和第二偏振滤光器接收的光产生数据; 并基于该数据导出极化图案。

Patent Agency Ranking