公开(公告)号：US09297744B2

公开(公告)日：2016-03-29

申请号：US14455860

申请日：2014-08-08

Applicant: Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences

Inventor： Aijun Zeng ,  Longhai Liu ,  Linglin Zhu ,  Huijie Huang

IPC: G01J4/00 ,  G01N21/21 ,  G01M11/02 ,  G01J9/00

CPC classification number: G01N21/21 ,  G01J9/00 ,  G01J2004/005 ,  G01M11/02 ,  G01N21/23 ,  G01N2021/216

Abstract: Device and method for measuring phase retardation distribution and fast axis azimuth angle distribution of birefringence sample in real time. The device consists of a collimating light source, a circular polarizer, a diffractive beam-splitting component, a quarter-wave plate, an analyzer array, a charge coupled device (CCD) image sensor and a computer with an image acquisition card. The method can measure the phase retardation distribution and the fast axis azimuth angle distribution of the birefringence sample in real time and has large measurement range. The measurement result is immune to the light-intensity fluctuation of the light source.

Abstract translation: 用于实时测量双折射样品的相位延迟分布和快轴方位角分布的装置和方法。 该装置由准直光源，圆偏振器，衍射光束分离部件，四分之一波片，分析器阵列，电荷耦合器件（CCD）图像传感器和具有图像采集卡的计算机组成。 该方法可以实时测量双折射样品的相位延迟分布和快轴方位角分布，测量范围较大。 测量结果不受光源光强波动的影响。

公开(公告)号：US20140347665A1

公开(公告)日：2014-11-27

申请号：US14455860

申请日：2014-08-08

Applicant: Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

Inventor： Aijun ZENG ,  Longhai Liu ,  Linglin Zhu ,  Huijie Huang

IPC: G01N21/21 ,  G01J9/00

CPC classification number: G01N21/21 ,  G01J9/00 ,  G01J2004/005 ,  G01M11/02 ,  G01N21/23 ,  G01N2021/216

Abstract: Device and method for measuring phase retardation distribution and fast axis azimuth angle distribution of birefringence sample in real time. The device consists of a collimating light source, a circular polarizer, a diffractive beam-splitting component, a quarter-wave plate, an analyzer array, a charge coupled device (CCD) image sensor and a computer with an image acquisition card. The method can measure the phase retardation distribution and the fast axis azimuth angle distribution of the birefringence sample in real time and has large measurement range. The measurement result is immune to the light-intensity fluctuation of the light source.

Abstract translation: 用于实时测量双折射样品的相位延迟分布和快轴方位角分布的装置和方法。 该装置由准直光源，圆偏振器，衍射光束分离部件，四分之一波片，分析器阵列，电荷耦合器件（CCD）图像传感器和具有图像采集卡的计算机组成。 该方法可以实时测量双折射样品的相位延迟分布和快轴方位角分布，测量范围较大。 测量结果不受光源光强波动的影响。

公开(公告)号：US20120175496A1

公开(公告)日：2012-07-12

申请号：US13421530

申请日：2012-03-15

Applicant: Shlomo VOROVITCHIK

Inventor： Shlomo VOROVITCHIK

IPC: G01C21/02

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。

公开(公告)号：US07230700B2

公开(公告)日：2007-06-12

申请号：US11527655

申请日：2006-09-25

Applicant: Grant R. Gerhart ,  Roy M. Matchko

Inventor： Grant R. Gerhart ,  Roy M. 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 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.

公开(公告)号：US20170184449A1

公开(公告)日：2017-06-29

申请号：US15313173

申请日：2015-06-17

Applicant: Sony Corporation

Inventor： Ken Ozawa

IPC: G01J1/42 ,  G01J1/04

CPC classification number: G01J1/42 ,  A61B5/0075 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/14558 ,  A61B5/681 ,  G01J1/0411 ,  G01J1/0429 ,  G01J1/0488 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0224 ,  G01J3/027 ,  G01J3/2823 ,  G01J3/4531 ,  G01J4/04 ,  G01J2004/005 ,  G01N21/314 ,  G01N21/359 ,  G01N2021/3595

Abstract: An imaging device and method are provided. Light from an object is provided as a plurality of sets of light beams to a phase difference array having a plurality of elements. The phase difference array is configured to provide different optical paths for light included within at least some of a plurality of sets of light beams. The light from the phase difference array is received at an imaging element array. The imaging element array includes a plurality of imaging elements. Information obtained from hyperspectral imaging data based on output signals of the imaging element array can be displayed.

公开(公告)号：US20150338308A1

公开(公告)日：2015-11-26

申请号：US14707431

申请日：2015-05-08

Applicant: Corning Incorporated

Inventor： Shenping Li ,  Rostislav Vatchev Roussev

IPC: G01M11/00 ,  G01B11/22 ,  G01L1/24

CPC classification number: G01M11/3181 ,  G01B11/22 ,  G01J4/04 ,  G01J2004/005 ,  G01L1/24 ,  G01N21/23 ,  G01N21/41 ,  G01N21/8422 ,  G01N2021/4126 ,  G02B5/04

Abstract: Prism-coupling systems and methods for characterizing large depth-of-layer waveguides are disclosed. The systems and methods utilize a coupling prism having a coupling angle α having a maximum coupling angle αmax at which total internal reflection occurs. The prism angle α is in the range 0.81αmax≦α≦0.99αmax. This configuration causes the more spaced-apart lower-order mode lines to move closer together and the more tightly spaced higher-order mode lines to separate. The adjusted mode-line spacing allows for proper sampling at the detector of the otherwise tightly spaced mode lines. The mode-line spacings of the detected mode spectra are then corrected via post-processing. The corrected mode spectra are then processed to obtain at least one characteristic of the waveguide.

Abstract translation: 公开了用于表征大深度深度波导的棱镜耦合系统和方法。 这些系统和方法利用具有耦合角度α的耦合棱镜，其具有发生全内反射的最大耦合角度αmax。 棱镜角α在0.81αmax＆nlE;α＆nlE;0.99αmax的范围内。 这种配置使更多间隔开的低阶模式线移动得更近，并且更紧密间隔的高阶模式线分离。 经调整的模式线间距允许在否则紧密间隔的模式线的检测器处进行适当的采样。 然后通过后处理校正检测模式谱的模式线间隔。 然后处理校正的模式光谱以获得波导的至少一个特性。

公开(公告)号：US20150116713A1

公开(公告)日：2015-04-30

申请号：US14523171

申请日：2014-10-24

Applicant: CORNING INCORPORATED

Inventor： Rostislav Vatchev Roussev ,  Vitor Marino Schneider

IPC: G01J4/02 ,  G02B5/06 ,  G02B5/04

CPC classification number: G01J4/02 ,  G01J2004/005 ,  G01N21/23 ,  G01N21/43 ,  G01N2021/4126 ,  G01N2021/434 ,  G02B5/04 ,  G02B5/06 ,  G02B6/34

Abstract: Apparatus and methods for measuring mode spectra for ion-exchanged glass substrates having a steep index region are disclosed. An interfacing fluid is provided between the coupling prism and the glass substrate. The interfacing fluid thickness is selected so that the variation in modal birefringence with fluid thickness is reduced to an acceptable level. The coupling prism can include a prism coating on the coupling surface so that the substrate-prism interface includes the prism coating. The coupling prism can also include stand-off members that serve to define the thickness of the interfacing fluid.

Abstract translation: 公开了用于测量具有陡峭折射率区域的离子交换玻璃基板的模式光谱的装置和方法。 在耦合棱镜和玻璃基板之间提供界面流体。 选择界面流体厚度，使得具有流体厚度的模态双折射的变化减小到可接受的水平。 耦合棱镜可以包括在耦合表面上的棱镜涂层，使得基板 - 棱镜界面包括棱镜涂层。 连接棱镜还可以包括用于限定界面流体的厚度的间隔构件。

公开(公告)号：US20070041014A1

公开(公告)日：2007-02-22

申请号：US11527655

申请日：2006-09-25

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 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.

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。 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。