公开(公告)号：US09846080B2

公开(公告)日：2017-12-19

申请号：US15119489

申请日：2015-02-11

Applicant: Harbin Institute of Technology

Inventor： Peng Jin ,  Shuaishuai Zhu ,  Yu Zhang ,  Jie Lin

IPC: G01J3/45 ,  G01J3/453 ,  G01J3/447 ,  G01J3/28 ,  G01J3/02

CPC classification number: G01J3/453 ,  G01J3/0208 ,  G01J3/2823 ,  G01J3/447

Abstract: A real-time birefringent imaging spectrometer based on differential structure is provided. A polarization beam splitter to add an imaging branch is set. Meanwhile, the structure alters the conventional optical structure to the differential structure by setting another polarization beam splitter. Taking the difference between these two interferogram obtained by two branches of differential structure as the final interferogram and performing the required post-processing calculations produces the spectrum at each pixel. Common-mode error is intensively restrained due to the differential structure, and 50% of the optical loss is avoided because of casting off the analyzer; a high spatial resolution, high spectral resolution image is acquired by combining the high spatial resolution, colorful image with the low spatial resolution, high spectral resolution image.

公开(公告)号：US20170336263A1

公开(公告)日：2017-11-23

申请号：US15597544

申请日：2017-05-17

Applicant: AOI ELECTRONICS CO., Ltd. ,  NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY

Inventor： Hiroki HAYASHI ,  Ichiro ISHIMARU

IPC: G01J3/447 ,  G01J3/45 ,  G01J3/02

CPC classification number: G01J3/447 ,  G01J3/0224 ,  G01J3/0289 ,  G01J3/45 ,  G01J3/50 ,  G01N21/21 ,  G01N21/255 ,  G01N21/55 ,  G01N2021/217 ,  G01N2021/559 ,  G01N2201/0642

Abstract: Reflected light detecting device and method with surface reflected light components collectively be extracted/removed when detecting reflected light arising in casting light onto target-object range having non-planar surface. The device includes: a first illuminating device causing first-measurement light in predetermined polarization direction to enter target-object first region from first direction; polarization optical system position part of first-surface reflected light enters the polarization optical system, the first-surface reflected light being the first-measurement in the first region surface; a second illuminating device causing second-measurement light in the same first-measurement light polarization direction to enter second region from second direction, the second region being on the target-object surface, different from the first region; adjusting direction of the second-measurement light optical axis so part of second-surface reflected light enters the polarization optical system, the second-surface reflected light being the second-measurement in second region surface; and detecting light having passed through the polarization optical system.

公开(公告)号：US20170211978A1

公开(公告)日：2017-07-27

申请号：US15409826

申请日：2017-01-19

Applicant: Tsinghua University ,  HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： LING ZHANG ,  LEI DENG ,  YANG WU ,  CHANG-HONG LIU ,  KAI-LI JIANG ,  SHOU-SHAN FAN

IPC: G01J3/447 ,  E05B15/16 ,  E05B15/08 ,  E05B47/00 ,  E05B49/00 ,  E05B41/00 ,  E05B63/00 ,  E05B65/06 ,  E05B17/00 ,  E05B19/26

CPC classification number: G01J3/447 ,  B82Y15/00 ,  E05B15/08 ,  E05B15/16 ,  E05B17/00 ,  E05B19/26 ,  E05B41/00 ,  E05B47/0001 ,  E05B49/00 ,  E05B63/0065 ,  E05B65/06 ,  E05B2047/0048 ,  E05B2047/0067 ,  E05B2047/0072 ,  E05B2047/0088 ,  G02B5/3025 ,  G02B5/3058 ,  G07C9/00182 ,  G07C2009/00785 ,  Y10S977/742 ,  Y10S977/954

Abstract: An optical locking system comprises a light emitter, an optical wavelength identifying system, and a locking unit. The optical wavelength identifying system comprises an optical wavelength detecting device, a memory, a modulator, a comparison module, and an instruction module. The optical wavelength detecting device comprises a polarizer, a detecting element, a measuring device, and a data processor. The detecting element configured to form a temperature difference or a potential difference between two points of the detecting element when exposed to the polarized light, wherein the detecting element comprises a carbon nanotube structure comprising a plurality of carbon nanotubes oriented along the same direction, and angles between a polarizing direction of the polarized light and an oriented direction of the plurality of carbon nanotubes is adjustable.

公开(公告)号：US09709441B2

公开(公告)日：2017-07-18

申请号：US14649065

申请日：2013-11-29

Applicant: HORIBA JOBIN YVON SAS

Inventor： Olivier Acher ,  Simon Richard

IPC: G01J3/447 ,  G01J3/02

CPC classification number: G01J3/0224 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/1804 ,  G01J3/447 ,  G01J2003/1208

Abstract: A spectrometer (100) for analyzing the spectrum of an upstream light beam (1) includes an entrance slit (101) and angular dispersing elements (130). The angular dispersing elements include at least one polarization-dependent diffraction grating that is suitable for, at the plurality of wavelengths (1, 2, 3), diffracting a corrected light beam (20) into diffracted light beams (31, 32, 33) in a given particular diffraction order of the polarization-dependent diffraction grating, which is either the +1 diffraction order or the −1 diffraction order, when the corrected light beam has a preset corrected polarization state that is circular; and the spectrometer includes elements for modifying polarization (1100) placed between the entrance slit and the angular dispersion elements, which are suitable for modifying the polarization state of the upstream light beam in order to generate the corrected light beam with a preset corrected polarization state.

公开(公告)号：US09621760B2

公开(公告)日：2017-04-11

申请号：US14298747

申请日：2014-06-06

Applicant: Digimarc Corporation

Inventor： Geoffrey B. Rhoads ,  Alastair M. Reed

IPC: G06K9/00 ,  H04N1/32 ,  G01J3/51 ,  G01J3/28 ,  G01J3/36 ,  G01J3/447 ,  H04N5/225 ,  H04N5/235 ,  H04N9/04 ,  G01J3/02 ,  H05B33/08 ,  H05B37/02 ,  G06T1/00 ,  H04N21/8358 ,  A61B5/00

CPC classification number: H04N1/32309 ,  A61B5/0075 ,  G01J3/0272 ,  G01J3/2823 ,  G01J3/36 ,  G01J3/447 ,  G01J3/51 ,  G01J3/513 ,  G06T1/0028 ,  G06T2201/0051 ,  H04N1/32144 ,  H04N5/2254 ,  H04N5/2256 ,  H04N5/2354 ,  H04N9/045 ,  H04N21/8358 ,  H04N2201/3233 ,  H05B33/0869 ,  H05B37/0272

Abstract: Information is encoded in an image signal by exploiting spectral differences between colors that appear the same when rendered. These spectral differences are detected using image sensing that discerns the spectral differences. Spectral difference detection methods include using sensor-synchronized spectrally-structured-light imaging, 3D sensors, imaging spectrophotometers, and higher resolution Bayer pattern capture relative to resolution of patches used to convey a spectral difference signal.

公开(公告)号：US09593982B2

公开(公告)日：2017-03-14

申请号：US14201852

申请日：2014-03-08

Applicant: Digimarc Corporation

Inventor： Geoffrey B. Rhoads ,  Hugh L. Brunk ,  John D. Lord

IPC: G01J3/28 ,  H04N9/73 ,  H04N5/225 ,  G01J3/02 ,  G01J3/447 ,  G01J3/51 ,  H04N5/235 ,  G01J3/36 ,  H04N9/04 ,  A61B5/00

CPC classification number: H04N5/2256 ,  A61B5/0075 ,  A61B5/6898 ,  G01J3/0229 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/2823 ,  G01J3/36 ,  G01J3/447 ,  G01J3/51 ,  G01J3/513 ,  G06K9/4652 ,  G06K9/481 ,  G06K9/6256 ,  G06K9/628 ,  H04N5/2254 ,  H04N5/2354 ,  H04N9/045 ,  H04N9/69 ,  H04N9/73

Abstract: A smartphone is adapted for use as an imaging spectrometer, by synchronized pulsing of different LED light sources as different image frames are captured by the phone's CMOS image sensor. A particular implementation employs the CIE color matching functions, and/or their orthogonally transformed functions, to enable direct chromaticity capture. A great variety of other features and arrangements are also detailed.

Abstract translation: 智能手机适合用作成像光谱仪，通过不同的LED光源的同步脉冲，因为手机的CMOS图像传感器捕获不同的图像帧。 特定的实施方案采用CIE色彩匹配功能和/或其正交变换的功能来实现直接色度捕获。 还详细介绍了各种各样的其他功能和安排。

公开(公告)号：US09535200B2

公开(公告)日：2017-01-03

申请号：US13720697

申请日：2012-12-19

Applicant: The Aerospace Corporation

Inventor： John D Perreault

IPC: G02B5/30 ,  G02B27/28 ,  G01J4/00 ,  G01J3/28 ,  G01J3/447

CPC classification number: G02B5/3083 ,  G01J3/2803 ,  G01J3/447 ,  G01J4/00 ,  G02B27/283

Abstract: An apparatus for simultaneously measuring linear and circular polarization components of light is provided, and contains no moving parts. The apparatus may include a prism assembly configured to receive collimated light and splits the light into different directions according to its polarization state. The apparatus may also include lenses configured to collimate light from an image plane to be analyzed by the prism assembly, or direct the light that is split by the prism assembly to different detectors or locations on an image plane.

Abstract translation: 提供一种用于同时测量光的线性和圆偏振分量的装置，并且不包含移动部件。 该装置可以包括被配置为接收准直光并根据其偏振状态将光分解成不同方向的棱镜组件。 该装置还可以包括被配置为准直来自由棱镜组件分析的图像平面的光的透镜，或者将由棱镜组件分裂的光引导到图像平面上的不同检测器或位置。

公开(公告)号：US09442015B2

公开(公告)日：2016-09-13

申请号：US14091190

申请日：2013-11-26

Applicant: Michael W. Kudenov ,  Michael J. Escuti

Inventor： Michael W. Kudenov ,  Michael J. Escuti

IPC: G01J4/00 ,  G02F1/01 ,  G02F2/00 ,  G01J3/28 ,  G01J3/447 ,  G01J3/453 ,  G01J3/02 ,  G01J4/04 ,  G01J3/45

CPC classification number: G01J4/00 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/2803 ,  G01J3/447 ,  G01J3/4531 ,  G01J4/04 ,  G01J2003/452 ,  G02F1/01 ,  G02F2/00

Abstract: Polarization based channeled images are optically demodulated to produce directly viewable images. A channeled image flux is converted to an unpolarized flux by a phosphor or other sensor, and the resulting converted flux is demodulated by modulating at a spatial frequency corresponding to a modulating frequency of the channeled image flux. After modulation, the converted flux is spatially filtered to remove or attenuate portions associated with the modulation frequency and harmonics thereof. The resulting baseband flux is then imaged by direct viewing, projection, or using an image sensor and a display.

Abstract translation: 基于偏振的信道图像被光学解调以产生直接可见的图像。 通过荧光体或其它传感器将通道图像通量转换成非极化通量，并且通过在对应于通道图像通量的调制频率的空间频率下进行调制来解调所得到的转换通量。 在调制之后，转换的通量被空间滤波以去除或衰减与其调制频率和谐波相关的部分。 然后通过直接观看，投影或使用图像传感器和显示器对所得到的基带通量进行成像。

公开(公告)号：US20160097678A1

公开(公告)日：2016-04-07

申请号：US14966896

申请日：2015-12-11

Applicant: ADOM, Advanced Optical Technologies Ltd.

Inventor： Yoel Arieli ,  Yosef Weitzman

IPC: G01J3/447 ,  G01J3/28 ,  G01J3/45

CPC classification number: G01J3/447 ,  G01B9/02 ,  G01B11/02 ,  G01J3/0224 ,  G01J3/027 ,  G01J3/12 ,  G01J3/2823 ,  G01J3/32 ,  G01J3/45 ,  G01J3/453 ,  G01N21/211 ,  G01N21/31 ,  G01N21/4795 ,  G02F1/13336

Abstract: There is provided a method for analyzing optical properties of an object, including utilizing a light illumination having a plurality of amplitudes, phases and polarizations of a plurality of wavelengths impinging from the object, obtaining modified illuminations corresponding to the light illumination, applying a modification to the light illumination thereby obtaining a modified light illumination, analyzing the modified light illumination, obtaining a plurality of amplitudes, phases and polarizations maps of the plurality of wavelengths, and employing the plurality of amplitudes, phases and polarizations maps for obtaining output representing the object's optical properties. An apparatus for analyzing optical properties of an object is also provided.

Abstract translation: 提供了一种用于分析物体的光学特性的方法，包括利用具有从物体入射的多个波长的多个振幅，相位和极化的光照，获得对应于光照射的修改照明，对 光照明，从而获得修改的光照明，分析修改的光照明，获得多个波长的多个振幅，相位和极化图，并采用多个幅度，相位和极化映射，以获得表示物体的光学 属性。 还提供了一种用于分析物体的光学特性的装置。

公开(公告)号：US20160076942A1

公开(公告)日：2016-03-17

申请号：US14121491

申请日：2014-09-11

Applicant: Mazen Zawaideh ,  Chris Claypool ,  Emad Zawaideh

Inventor： Mazen Zawaideh ,  Chris Claypool ,  Emad Zawaideh

IPC: G01J4/04 ,  G01J3/447 ,  G01J3/28

CPC classification number: G01J4/04 ,  A61B5/0075 ,  A61B5/725 ,  A61B5/7257 ,  G01J3/0224 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/447 ,  G01J2003/2826 ,  G01N2021/213

Abstract: An imaging spectropolarimeter for examining targets with polarized light, the spectropolarimeter including a light source adapted to produce polarized light directed at a target. Embodiments also include a three-camera camera system defining a three-camera camera axis with a first camera unit comprising a first analyzer set at 0°, a lens and a first multi-pixel sensor, a second camera unit comprising a second analyzer set at 45°, a lens and a second multi-pixel sensor, and a third camera unit comprising a third analyzer set at 90°, a lens and a third multi-pixel sensor. At least two beam splitters adapted to direct a portion of polarized light reflected from the target to each of the first, second and third camera units. Preferred systems include a processor adapted to produce polarimetric images of the target utilizing intensity information collected by the multi-pixel sensors.

Abstract translation: 用于用偏振光检查目标的成像分光偏振计，分光偏振计包括适于产生指向目标的偏振光的光源。 实施例还包括定义三相机相机轴的三相机相机系统，第一相机单元包括设置为0°的第一分析器，透镜和第一多像素传感器，第二相机单元，包括第二分析器 45°，透镜和第二多像素传感器，以及第三相机单元，包括设置在90°的第三分析器，透镜和第三多像素传感器。 至少两个分束器，其适于将从目标反射的偏振光的一部分引导到第一，第二和第三相机单元中的每一个。 优选的系统包括适于使用由多像素传感器收集的强度信息产生目标的偏振图像的处理器。