公开(公告)号：US09261429B2

公开(公告)日：2016-02-16

申请号：US14707431

申请日：2015-05-08

Applicant: Corning Incorporated

Inventor： Shenping Li ,  Rostislav Vatchev Roussev

IPC: G01B11/16 ,  G01M11/00 ,  G01L1/24 ,  G01B11/22 ,  G01J4/04 ,  G01N21/41 ,  G01N21/84 ,  G01N21/23 ,  G02B5/04 ,  G01J4/00

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：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。

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。

公开(公告)号：US20180252586A1

公开(公告)日：2018-09-06

申请号：US15971455

申请日：2018-05-04

Applicant: CORNING INCORPORATED

Inventor： Rostislav Vatchev Roussev

IPC: G01J4/02 ,  G01N21/23 ,  G02B5/04 ,  G02B5/06 ,  G02B6/34 ,  G01N21/43 ,  G01N21/41 ,  G01J4/00

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.

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。

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。

公开(公告)号：US20180308217A1

公开(公告)日：2018-10-25

申请号：US15765086

申请日：2016-09-09

Applicant: SONY CORPORATION

Inventor： Teppei KURITA ,  Shun KAIZU ,  Yuhi KONDO ,  Yasutaka HIRASAWA ,  Ying LU

IPC: G06T3/40 ,  G06T7/90 ,  H04N9/083 ,  H04N9/31 ,  H04N5/30

CPC classification number: G06T3/4015 ,  B60R11/02 ,  G01J3/513 ,  G01J4/02 ,  G01J2004/005 ,  G06T3/40 ,  G06T7/90 ,  H04N5/232 ,  H04N5/30 ,  H04N9/045 ,  H04N9/04515 ,  H04N9/04551 ,  H04N9/083 ,  H04N9/3182

Abstract: The polarization imaging unit generates a polarized image including pixels for each of a plurality of polarization components. The demosaicing unit calculates a pixel signal for each polarization component by using the pixel signal of the target pixel of the polarized image and the pixel signal of the pixel for each of the identical polarization components located near the target pixel. In one example, a low frequency component is calculated for each polarization component using the pixel signal of the pixel located near the target pixel for each of the identical polarization components. In addition, component information indicating relationship between the low frequency component of the polarization component of the polarized image and the pixel signal of the target pixel is acquired. Furthermore, the pixel signal for each polarization component in the target pixel is calculated based on the low frequency component and the component information for each polarization component.

公开(公告)号：US09983064B2

公开(公告)日：2018-05-29

申请号：US14523171

申请日：2014-10-24

Applicant: CORNING INCORPORATED

Inventor： Rostislav Vatchev Roussev ,  Vitor Marino Schneider

IPC: G01N21/00 ,  G01J4/02 ,  G02B5/04 ,  G02B5/06 ,  G02B6/34 ,  G01N21/23 ,  G01J4/00 ,  G01N21/43 ,  G01N21/41

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.

公开(公告)号：US09612157B2

公开(公告)日：2017-04-04

申请号：US14811398

申请日：2015-07-28

Applicant: Shlomo Vorovitchik

Inventor： Shlomo Vorovitchik

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

公开(公告)号：US20150330789A1

公开(公告)日：2015-11-19

申请号：US14811398

申请日：2015-07-28

Applicant: Shlomo VOROVITCHIK

Inventor： Shlomo VOROVITCHIK

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

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。