公开(公告)号：CN106989822A

公开(公告)日：2017-07-28

申请号：CN201710216330.8

申请日：2017-04-05

Applicant: 长春理工大学

Inventor： 刘智颖 ,  朱启凡 ,  付跃刚 ,  丁秋伟

IPC: G01J4/04

CPC classification number: G01J4/04 ,  G01J2004/004

Abstract: 仿虾蛄眼谱段可选偏振态探测装置与方法属于目标的光学探测技术领域。现有技术获得的仅仅是偏振度图像信息，并未获得偏振态信息。本发明之探测装置由成像物镜、偏振通道、光电探测器各4个以相同排布方式，并以以下4种形式依次构成45°、‑45°、0°、90°偏振态探测通道：成像物镜、45°偏振片、光电探测器依次同轴排列；成像物镜、‑45°偏振片、光电探测器依次同轴排列；成像物镜、45°1/4波片、0°偏振片、光电探测器依次同轴排列；成像物镜、45°1/4波片、90°偏振片、光电探测器依次同轴排列。本发明之探测方法由可切换滤光片组确定探测谱段λi，根据45°、‑45°、0°、90°偏振态探测通道探测到的目标光强I1、I2、I3、I4判断目标光的偏振态，包括左旋圆偏振、右旋圆偏振、线偏振和椭圆偏振。

公开(公告)号：CN106662485A

公开(公告)日：2017-05-10

申请号：CN201580046292.5

申请日：2015-06-26

Applicant: 索尔福德大学企业有限公司

Inventor： 沈铁汉 ,  P.J.库克

IPC: G01J4/04

CPC classification number: G01J4/04 ,  G01J2004/004 ,  G02F1/0136

Abstract: 公开了一种用于测量电磁照明的偏振的方法和装置。该方法包括以下步骤：调制从目标对象接收到的照明的偏振状态以生成经过调制的强度照明；通过以第一选通频率周期性地选通成像设备对经过调制的强度照明的曝光来选择性地测量经过调制的强度照明的强度；响应于所测得的强度，确定所接收到的照明的偏振参数；以及利用多个偏振参数生成与目标对象相对应的图像数据，其中根据第一频率来调制来自目标对象的照明并且第一选通频率至少与第一频率相关联且同步。

公开(公告)号：US5452089A

公开(公告)日：1995-09-19

申请号：US94275

申请日：1993-07-05

Applicant: Boyd B. Bushman

Inventor： Boyd B. Bushman

IPC: G01J4/00 ,  G01N21/21 ,  G01N21/35 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28

CPC classification number: G01J4/00 ,  G01N21/21 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28 ,  G06K9/3241 ,  G01J2004/004 ,  G01N2021/1765 ,  G01N21/35

Abstract: A search light employs variable polarization angles to enhance target identification. The search light shines a beam of light which may be directed across terrain. The beam of light is alternated in polarization angles at a rate of about five to twelve cycles per second. The alternating contrast in polarization angles produces flashing to an observer viewing certain targets struck by the beam of light. The flashing appears when striking man-made objects which tend to have a differential in polarized light between horizontal and vertical polarization. Natural objects do not appear to provide the flashing to the observer. The rotating polarization angles are accomplished in one instance by using a stationary polarizer and a liquid crystal retarder mounted in front of a light source. In another instance, the change in polarization angles is accomplished by rotating a polarizer in front of a light source. The light source may be infrared, visible or ultraviolet.

Abstract translation: 搜索光采用可变偏振角来增强目标识别。 搜索光照射可能被引导穿过地形的光束。 光束以约5至12个循环/秒的速率以偏振角交替。 偏振角的交替对比产生了观察者观察到被光束撞击的某些目标的闪烁。 当打击在水平和垂直极化之间有偏振光的差异的人造物体时，会出现闪烁。 自然对象似乎不会向观察者提供闪烁。 通过使用安装在光源前面的静止偏振器和液晶延迟器，一次实现旋转偏振角。 在另一个实例中，偏振角的变化是通过在光源的前方旋转偏振器来实现的。 光源可以是红外线，可见光或紫外线。

公开(公告)号：US5264916A

公开(公告)日：1993-11-23

申请号：US851281

申请日：1992-02-07

Applicant: Boyd B. Bushman

Inventor： Boyd B. Bushman

IPC: G01J4/00 ,  G01N21/21 ,  G01N21/35 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28 ,  G01J1/01

CPC classification number: G01J4/00 ,  G01N21/21 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28 ,  G06K9/3241 ,  G01J2004/004 ,  G01N2021/1765 ,  G01N21/35

Abstract: A device will detect man-made objects by using a polarizer. The polarizer rotates about an axis in front of a lens array. The rotation of the polarizer alternately polarizes light received in proportion to the speed of rotation. This produces flashing in intensity for detecting the object as well as background rejection due to its lack of polarization. A man-made object having both horizontal and vertical surfaces of a type that will reflect light that can be polarized will provide flashing through the lens array as the polarizer passes through horizontal and vertical position. On the other hand, backgrounds don't have polarized components and won't flash. Attention is drawn to the man-made target. The background can also be electronically eliminated from the observed scene, permitting precise lock-on to the target.

Abstract translation: 设备将通过使用偏光片检测人造物体。 偏光镜绕透镜阵列前方的轴旋转。 偏振器的旋转使得与旋转速度成比例地接收的光交替偏振。 由于其缺乏极化，这样会产生用于检测物体的强度闪烁以及背景抑制。 具有水平和垂直表面的人造物体，当反射器通过水平和垂直位置时，具有反射可以被偏振的光的类型将提供通过透镜阵列的闪烁。 另一方面，背景没有偏振分量，不会闪烁。 注意人造目标。 背景也可以从观察到的场景中被电子消除，从而允许对目标的精确锁定。

公开(公告)号：US5404225A

公开(公告)日：1995-04-04

申请号：US093223

申请日：1993-07-14

Applicant: Boyd B. Bushman

Inventor： Boyd B. Bushman

IPC: G01J4/00 ,  G01N21/21 ,  G01N21/35 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28 ,  G02F1/01

CPC classification number: G01J4/00 ,  G01N21/21 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28 ,  G01J2004/004 ,  G01N2021/1765 ,  G01N21/35

Abstract: A device will assist in detecting man-made objects by using a liquid crystal retarder and a stationary polarizer. The liquid crystal retarder shifts impinging light 90 degrees between a nonrotated and a rotated mode. In the nonrotated mode, the retarder is essentially transparent, with the light passing through the retarder and through the polarizer. In the rotated mode, the impinging light will be rotated 90 degrees. An observer viewing the light passing through the polarizer will detect a difference or a flashing, with the rate depending upon the speed of oscillation between the rotated and nonrotated modes. The system can be employed with visible light optical systems such as binoculars, or with an infrared detector or video camera.

Abstract translation: 装置将通过使用液晶延迟器和静止偏振器来辅助检测人造物体。 液晶延迟器在非旋转模式和旋转模式之间偏移90度。 在非旋转模式中，延迟器基本上是透明的，其中光通过延迟器并通过偏振器。 在旋转模式下，入射光将旋转90度。 观察通过偏振器的光的观察者将检测差异或闪烁，其速率取决于旋转和非旋转模式之间的振荡速度。 该系统可用于可见光光学系统如双筒望远镜，或与红外探测器或摄像机。

公开(公告)号：US20180058934A1

公开(公告)日：2018-03-01

申请号：US15321148

申请日：2015-06-26

Applicant: University of Salford Enterprises Limited

Inventor： Tiehan SHEN ,  Paul Joseph COOK

IPC: G01J4/04 ,  G02F1/1335 ,  G02F1/01

CPC classification number: G01J4/04 ,  G01J2004/004 ,  G02F1/0136

Abstract: A method and apparatus are disclosed for measuring polarisation of electromagnetic illumination. The method includes the steps of modulating a polarisation state of illumination received from a target object to generate modulated intensity illumination, selectively measuring an intensity of the modulated intensity illumination by periodically gating an exposure of an imaging device to the modulated intensity illumination at a first gating frequency; responsive to the measured intensity, determining polarisation parameters of the received illumination, and generating image data corresponding to the target object with a plurality of the polarisation parameters, wherein the illumination from the target object is modulated in accordance with a first frequency and the first gating frequency is associated with and synchronised with at least the first frequency.

公开(公告)号：US5345308A

公开(公告)日：1994-09-06

申请号：US947281

申请日：1992-09-17

Applicant: Boyd B. Bushman

Inventor： Boyd B. Bushman

IPC: G01J4/00 ,  G01N21/21 ,  G01N21/35 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28

CPC classification number: G01J4/00 ,  G01N21/21 ,  G02B23/18 ,  G02B26/04 ,  G02B27/28 ,  G06K9/3241 ,  G01J2004/004 ,  G01N2021/1765 ,  G01N21/35

Abstract: A device will detect man-made objects by using a polarizer mounted to a video camera. The polarizer rotates about an axis in front of a lens array of the video camera. The rotation of the polarizer alternately polarizes light received in proportion to the speed of rotation. This produces flashing in intensity for detecting the object as well as background rejection due to its lack of polarization. A man-made object having both horizontal and vertical surfaces of a type that will reflect light that can be polarized will provide flashing through the lens array as the polarizer passes through horizontal and vertical position. On the other hand, backgrounds don't have polarized components and won't flash. Attention is drawn to the man-made target. A high pass filter between the video signal processor and the monitor reduces background from the observed scene, permitting precise lock-on to the target.

Abstract translation: 设备将通过使用安装在摄像机上的偏振片来检测人造物体。 偏振器围绕摄像机的透镜阵列前方的轴旋转。 偏振器的旋转使得与旋转速度成比例地接收的光交替偏振。 由于其缺乏极化，这样会产生用于检测物体的强度的闪烁以及背景抑制。 具有水平和垂直表面的人造物体，当反射器通过水平和垂直位置时，具有反射可以被偏振的光的类型将提供通过透镜阵列的闪烁。 另一方面，背景没有偏振分量，不会闪烁。 注意人造目标。 视频信号处理器和显示器之间的高通滤波器可以从观察到的场景中减少背景，从而可以精确锁定目标。

公开(公告)号：EP3161437A1

公开(公告)日：2017-05-03

申请号：EP15733872.4

申请日：2015-06-26

Applicant: University of Salford Enterprises Limited

Inventor： SHEN, Tiehan ,  COOK, Paul Joseph

IPC: G01J4/04

CPC classification number: G01J4/04 ,  G01J2004/004 ,  G02F1/0126 ,  G02F1/0136 ,  G02F1/133528 ,  G02F2001/13355

Abstract: A method and apparatus are disclosed for measuring polarisation of electromagnetic illumination. The method includes the steps of modulating a polarisation state of illumination received from a target object to generate modulated intensity illumination, selectively measuring an intensity of the modulated intensity illumination by periodically gating an exposure of an imaging device to the modulated intensity illumination at a first gating frequency; responsive to the measured intensity, determining polarisation parameters of the received illumination, and generating image data corresponding to the target object with a plurality of the polarisation parameters, wherein the illumination from the target object is modulated in accordance with a first frequency and the first gating frequency is associated with and synchronised with at least the first frequency.

Abstract translation: 公开了一种用于测量电磁照明的偏振的方法和设备。 该方法包括以下步骤：调制从目标物体接收到的照明的偏振状态以生成调制强度照明;通过周期性地选通成像装置对第一门控的调制强度照明的曝光来选择性地测量调制强度照明的强度 频率; 响应于所测量的强度，确定所接收的照明的偏振参数，并且利用多个偏振参数来生成与目标对象相对应的图像数据，其中根据第一频率调制来自目标对象的照明，并且第一门控 频率与至少第一频率相关联并且与其同步。

公开(公告)号：WO2015198061A1

公开(公告)日：2015-12-30

申请号：PCT/GB2015/051862

申请日：2015-06-26

Applicant: UNIVERSITY OF SALFORD ENTERPRISES LIMITED

Inventor： SHEN, Tiehan ,  COOK, Paul Joseph

IPC: G01J4/04

CPC classification number: G01J4/04 ,  G01J2004/004 ,  G02F1/0126 ,  G02F1/0136 ,  G02F1/133528 ,  G02F2001/13355

Abstract: A method and apparatus are disclosed for measuring polarisation of electromagnetic illumination. The method includes the steps of modulating a polarisation state of illumination received from a target object to generate modulated intensity illumination, selectively measuring an intensity of the modulated intensity illumination by periodically gating an exposure of an imaging device to the modulated intensity illumination at a first gating frequency; responsive to the measured intensity, determining polarisation parameters of the received illumination, and generating image data corresponding to the target object with a plurality of the polarisation parameters, wherein the illumination from the target object is modulated in accordance with a first frequency and the first gating frequency is associated with and synchronised with at least the first frequency.

Abstract translation: 公开了一种用于测量电磁照明的偏振的方法和装置。 该方法包括以下步骤：调制从目标对象接收的照明的偏振态，以产生调制的强度照明;通过在第一选通期间周期性地选择成像装置对调制强度照明的曝光来选择性地测量调制强度照明的强度 频率; 响应于所测量的强度，确定接收到的照明的偏振参数，以及用多个偏振参数产生对应于目标对象的图像数据，其中来自目标对象的照明根据第一频率和第一选通 频率与至少第一频率相关联并与其同步。

公开(公告)号：WO2014193075A1

公开(公告)日：2014-12-04

申请号：PCT/KR2014/002038

申请日：2014-03-12

Applicant: 전자부품연구원

Inventor： 홍성민 ,  박순섭

IPC: G02F1/13 ,  G02B5/30

CPC classification number: G02B5/3083 ,  A61B5/14532 ,  A61B5/14558 ,  G01J4/04 ,  G01J2004/004 ,  G02B27/286 ,  G02F1/1326

Abstract: 액정 위상지연기를 이용한 편광간 위상변화 검출방법이 개시된다. 본 발명의 일 실시예에 따른 편광간 위상변화 검출방법은 종래 편광간섭 표면 검출장치의 편광자 구동 모터 및 1/4 위상지연기를 액정 위상지연기로 대체함으로써, 편광자 구동 모터나 1/4 위상지연기 없이도 동일한 수준의 성능을 구현할 수 있다.

Abstract translation: 公开了使用液晶可变延迟器来检测偏振光之间的相移的方法。 根据本发明的一个实施例，用于检测偏振光之间的相移的方法能够实现与用于检测偏振器驱动电机或四分之一波片的偏振器驱动电机或四分之一波片的现有装置相同的性能， 用于检测与液晶可变延迟器的偏振干涉面的现有装置的偏振器驱动电机和四分之一波片。