专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP1252489B1 OPTICAL SPECTRUM ANALYZER 有权
标题翻译：光谱分析仪
公开(公告)号：EP1252489B1
公开(公告)日：2003-12-17
申请号：EP01900347.4
申请日：2001-01-04
申请人： EXFO ELECTRO-OPTICAL ENGINEERING INC.
发明人： HE, Gang , GARIEPY, Daniel , SCHINN, Gregory, Walter
IPC分类号： G01J3/12 , G01J4/02 , G01J3/447
CPC分类号： G01J3/12 , G01J3/447 , G01J4/02
摘要： An optical spectrum analyzer comprises a diffraction grating (DG), a polarization decomposing unit (PDM) for decomposing the input light beam into first and second light beams having mutually-perpendicular linear states of polarization, and two output ports (FP2/1, FP2/2) each for receiving from the grating, substantially exclusively, a respective one of the polarized light beams (LT, LR) after diffraction by the diffraction grating (DG). Each of the linearly-polarized light beams is directed onto the diffraction grating with its linear state of polarization at any prescribed angle to a corresponding plane of diffraction of the diffraction grating. The arrangement is such that the state of polarization of the light beams, at any particular wavelength within an operating band of the analyzer remains substantially unchanged with respect to time. The analyzer also may have a reflector (RAM) for reflecting the light beams leaving the diffraction grating after diffraction a first time so as to return them to the diffraction grating for diffraction a second time.

2. 发明公开

EP4392760A1 DEVICE AND METHOD FOR POLARIMETRIC IMAGING 审中-公开
公开(公告)号：EP4392760A1
公开(公告)日：2024-07-03
申请号：EP22772428.3
申请日：2022-08-25
申请人： Université de Strasbourg , Centre National de la Recherche Scientifique
发明人： ZALLAT, Jihad , HEINRICH, Christian
IPC分类号： G01N21/21
CPC分类号： G01N21/21 , G01N2201/022120130101 , G01J4/04 , G01J4/02

3. 发明公开

EP3030881A2 INTENSITY-INDEPENDENT OPTICAL COMPUTING DEVICE 审中-公开
标题翻译： INTENSITÄTSABHÄNGIGEOPTISCHE BERECHNUNGSVORRICHTUNG
公开(公告)号：EP3030881A2
公开(公告)日：2016-06-15
申请号：EP13895463.1
申请日：2013-10-16
申请人： Halliburton Energy Services, Inc.
发明人： PRICE, James M. , PERKINS, David L.
IPC分类号： G01N21/17 , G01J4/02 , G02B1/02
CPC分类号： G01V8/20 , E21B49/081 , G01J4/02 , G01N21/21 , G01N2201/0683 , G01N2201/12 , G02B1/02 , G02B5/3025
摘要： An intensity-independent optical computing device and method for performing multivariate optical computing based on changes in polarization of the reflected and/or transmitted electromagnetic radiation to thereby determine sample characteristics.
摘要翻译：一种强度无关的光学计算装置和方法，用于基于反射和/或发射的电磁辐射的极化的变化来执行多变量光学计算，从而确定样本特性。

4. 发明公开

EP2877822A1 DISPOSITIF ET PROCÉDÉ D'ANALYSE POLARIMÉTRIQUE À DIVISION DE FRONT D'ONDE, SPECTROPOLARIMÈTRE, CAMÉRA POLARIMÉTRIQUE ET MICROSCOPE OPTIQUE UTILISANT UN TEL DISPOSITIF 有权
标题翻译： FOR POLARIMETERIC波阵区划分析，spectropo-，POLARIMETERIC摄像机和光学显微镜这样的设备分析方法和设备
公开(公告)号：EP2877822A1
公开(公告)日：2015-06-03
申请号：EP13756601.4
申请日：2013-07-25
申请人： Horiba Jobin Yvon S.A.S.
发明人： ACHER, Olivier , RICHARD, Simon , NGUYEN, Thanh-Liem
IPC分类号： G01J4/02 , G01J4/04
CPC分类号： G01J4/02 , G01J4/04
摘要： The invention relates to an accurate and robust wavefront-division polarimetric analysis device, allowing the quasi-instantaneous measurement of the polarisation states of a luminous object. The wavefront-division polarimetric analysis device of the invention can be used to produce a plurality of light beams, all polarised according to different polarisation states, from a single upstream light beam. The polarised light beams, which do not overlap and which carry information items that are complementary in terms of polarisation, are analysed simultaneously by a plurality of detectors that measure the luminous intensity of each beam. Processing means digitally process the luminous intensity values obtained in order to determine the polarisation state of the upstream light beam. According to the invention, the operations performed by the processing means on the luminous intensity values prevent luminous intensity variations in the divided light beams during the division of the wavefront of the upstream light beam. Therefore the wavefront-division polarimetric analysis device of the invention is robust and its accuracy is not hindered by the experimental conditions. The invention further relates to a wavefront-division polarimetric analysis method for determining the polarisation state of an upstream light beam.

5. 发明公开

EP3125019A1 LIGHT SOURCE WITH CONTROLLABLE LINEAR POLARISATION 有权
标题翻译： LICHTQULELE MIT STEBERBARER线性偏振
公开(公告)号：EP3125019A1
公开(公告)日：2017-02-01
申请号：EP16181685.5
申请日：2016-07-28
申请人： Agilent Technologies, Inc.
发明人： Tella, Richard P. , Bricker, Dower Cameron , Han, Yang , Klenczewski, Adam
IPC分类号： G02B27/28 , G02F1/01 , G02B26/00 , F21V9/14 , H01S3/10 , G01N21/21
CPC分类号： G01J4/02 , G01N2021/217 , G01N2021/556 , G02B5/3058 , G02B26/00 , G02B27/286 , G02F1/0136 , H01S5/005 , H01S5/0071 , H01S5/3401 , H01S5/3402 , H01S5/4012 , H01S5/4075
摘要： A light source (11, 30, 40) having first and second wire-grid polarizers (63, 64) and a laser (31, 71) that emits a beam of linearly polarized light that is characterized by a propagation direction is disclosed. The first wire-grid polarization filter (63) is characterized by a first linear polarization pass direction and a first actuator (65) for causing the first linear polarization pass direction to rotate relative to the beam of linearly polarized light. The second wire-grid polarization filter (64) is characterized by a second linear polarization pass direction and a second actuator for causing the second linear polarization pass direction to rotate relative to the beam of linearly polarized light. A controller (29) sets the first and second linear polarization pass directions to provide linearly polarized light having a specified polarization direction.
摘要翻译：公开了具有第一和第二线栅偏振器（63,64）的光源（11,30,40）和发射以传播方向为特征的线偏振光束的激光器（31,71）。第一线栅偏振滤光器（63）的特征在于第一线偏振光通过方向和第一致动器（65），用于使第一线偏振光通过方向相对于线偏振光束旋转。第二线栅偏振滤光器（64）的特征在于第二线偏振光通过方向和第二致动器，用于使第二线偏振光通过方向相对于线偏振光束旋转。控制器（29）设置第一和第二线性偏振通过方向以提供具有指定偏振方向的线偏振光。

6. 发明公开

EP2041537A2 CIRCULAR BIREFRINGENCE REFRACTOMETER: METHOD AND APPARATUS FOR MEASURING OPTICAL ACTIVITY 审中-公开
标题翻译：折射计用于测量圆双折射：方法和设备测量光学活动
公开(公告)号：EP2041537A2
公开(公告)日：2009-04-01
申请号：EP07799089.3
申请日：2007-06-27
申请人： President and Fellows of Harvard College
发明人： PEER, Fischer , GHOSH, Ambarish
IPC分类号： G01J4/02
CPC分类号： G01J4/02 , G01N21/23
摘要： A system and method for detection and measurement of circular birefringences in materials, such as optically active (chiral) liquids and materials that exhibit the Faraday effect. The method and apparatus permit the detection of optical activities via the difference in the directions of propagation the left- and the right- circularly polarized light (components). A beam of light is directed at an interface formed by the optically active medium and another medium such that a difference in the angles of refraction and/or reflection and/or diffraction between the left- and the right-circularly polarized components of the light beam can be detected. The difference in the propagation directions between the two circularly polarized light components is measured on a position sensitive detector and/or is detected as an intensity difference. The circular birefringence in isotropic liquids is a measure of their optical purity (enantiomeric excess) and hence the invention presents a method and apparatus to measure chirality. The invention is thus related to optical rotation (polarimetric) measurements, but has the advantage that it does not depend on path-length traversed through the sample.

7. 发明公开

EP1252489A2 OPTICAL SPECTRUM ANALYZER 有权
标题翻译：光谱分析仪
公开(公告)号：EP1252489A2
公开(公告)日：2002-10-30
申请号：EP01900347.4
申请日：2001-01-04
申请人： EXFO ELECTRO-OPTICAL ENGINEERING INC.
发明人： HE, Gang , GARIEPY, Daniel , SCHINN, Gregory, Walter
IPC分类号： G01J3/12 , G01J4/02 , G01J3/447
CPC分类号： G01J3/12 , G01J3/447 , G01J4/02
摘要： An optical spectrum analyzer comprises a diffraction grating (DG), a polarization decomposing unit (PDM) for decomposing the input light beam into first and second light beams having mutually-perpendicular linear states of polarization, and two output ports (FP2/1, FP2/2) each for receiving from the grating, substantially exclusively, a respective one of the polarized light beams (LT, LR) after diffraction by the diffraction grating (DG). Each of the linearly-polarized light beams is directed onto the diffraction grating with its linear state of polarization at any prescribed angle to a corresponding plane of diffraction of the diffraction grating. The arrangement is such that the state of polarization of the light beams, at any particular wavelength within an operating band of the analyzer remains substantially unchanged with respect to time. The analyzer also may have a reflector (RAM) for reflecting the light beams leaving the diffraction grating after diffraction a first time so as to return them to the diffraction grating for diffraction a second time.

8. 发明授权

EP1519170B1 Imaging polarimeter sensor with achromatic beam-splitting polarizer 有权
标题翻译：与消色差偏振分束器偏振图像传感器
公开(公告)号：EP1519170B1
公开(公告)日：2010-12-22
申请号：EP04255760.3
申请日：2004-09-22
申请人： RAYTHEON COMPANY
发明人： Chen, Chungte W. , Ansley, David A
IPC分类号： G01J4/02
CPC分类号： G01J4/02

9. 发明公开

EP2041537A4 CIRCULAR BIREFRINGENCE REFRACTOMETER: METHOD AND APPARATUS FOR MEASURING OPTICAL ACTIVITY 审中-公开
标题翻译：圆DOPPELBRECHUNGSREFRAKTOMETER：用于测量光学活性的方法和装置
公开(公告)号：EP2041537A4
公开(公告)日：2010-01-27
申请号：EP07799089
申请日：2007-06-27
申请人： HARVARD COLLEGE
发明人： PEER FISCHER , GHOSH AMBARISH
IPC分类号： G01N21/23 , G01J4/02
CPC分类号： G01J4/02 , G01N21/23

10. 发明公开

EP1519170A1 Imaging polarimeter sensor with achromatic beam-splitting polarizer 有权
标题翻译： Polarimetrischer Bildsensor mit achromatischem Polarisationsstrahlteiler
公开(公告)号：EP1519170A1
公开(公告)日：2005-03-30
申请号：EP04255760.3
申请日：2004-09-22
申请人： Raytheon Company
发明人： Chen, Chungte W. , Ansley, David A
IPC分类号： G01J4/02
CPC分类号： G01J4/02
摘要： An imaging polarimeter sensor (20) includes an achromatic beamsplitting polarizer (30) that receives a polychromatic image beam (22) of a scene (24) and simultaneously produces a first polarized polychromatic image beam (32) and a second polarized polychromatic image beam (34). The second polarized polychromatic image beam (34) is of a different polarization than the first polarized polychromatic image beam (32) and is angularly separated from the first polarized polychromatic image beam (32). The achromatic beamsplitting polarizer (30) preferably includes a Wollaston prism (50) through which the polychromatic image beam (22) passes, and at least one grating (54, 56) through which the polychromatic image beam (22) passes either before or after it passes through the Wollaston prism (50). An imaging detector (38) receives the first polarized polychromatic image beam (32) and the second polarized polychromatic image beam (34) and produces an output image signal (40) responsive to the first polarized polychromatic image beam (32) and the second polarized polychromatic image beam (34).
摘要翻译：成像旋光仪传感器（20）包括接收场景（24）的多色图像束（22）的同时产生第一偏振多色图像束（32）和第二偏振多色图像束（32）的消色差分束偏振器（30） 34）。第二偏振多色图像束（34）具有与第一偏振多色图像束（32）不同的偏振，并且与第一偏振多色图像束（32）成角度地分离。消色差分束偏振器（30）优选地包括多色图像束（22）通过的渥拉斯顿棱镜（50），以及至少一个光栅（54,56），多色图像束（22）在其之前或之后经过它穿过渥拉斯顿棱镜（50）。成像检测器（38）接收第一偏振多色图像束（32）和第二偏振多色图像束（34），并产生响应于第一偏振多色图像束（32）和第二偏振多色图像束（34）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式