公开(公告)号：EP0351659B1

公开(公告)日：1993-02-10

申请号：EP89112378.8

申请日：1989-07-06

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Paul, Bernt-Joachim, Dr.

IPC: G01N21/21 ,  G01J4/04

CPC classification number: A61B5/14532 ,  A61B5/14558 ,  A61B5/1459 ,  A61B5/7242 ,  G01J4/04 ,  G01J2001/161 ,  G01J2001/182 ,  G01N21/21 ,  G01N2201/062

公开(公告)号：EP0352133A3

公开(公告)日：1991-03-20

申请号：EP89307447.6

申请日：1989-07-21

Applicant: UNIVERSITY OF ESSEX

Inventor： Siddiqui, Ahmed Shamim

IPC: G01J4/04

CPC classification number: G01J4/04

Abstract: A method of and apparatus for rapidly determining the polarisation state of an incoming beam of light, such as from a fibre optic (11). The incoming beam is passed through a beam expander (13,14) and then four separate portions of the beam are passed simultaneously through four Stokes filters (F1,F2,F3,F4) arranged in a common plane. The four filtered beam portions are directed by respective lenses 25 on to four detectors 26 providing electrical signals indicative of the intensity of the respective filtered beams. From these four signals, the Stokes parameters may be deduced.

公开(公告)号：EP0233215A4

公开(公告)日：1990-01-08

申请号：EP86904534

申请日：1986-06-18

Applicant: RESEARCH CORP

Inventor： AZZAM RASHEED M A

IPC: G01J4/04 ,  G01J4/00 ,  G01N21/21

CPC classification number: G01J4/00 ,  G01J4/04 ,  G01N21/211

公开(公告)号：EP0287624A1

公开(公告)日：1988-10-26

申请号：EP87907011.0

申请日：1987-10-23

Applicant: GOODALL, David Murray ,  LLOYD, David Kenneth

Inventor： GOODALL, David Murray ,  LLOYD, David Kenneth

IPC: G01J4 ,  G01N21 ,  G01N30 ,  H01S5

CPC classification number: G01N21/21 ,  G01J4/04 ,  G01N30/36 ,  H01S5/32

Abstract: Un appareil de chromatographie liquide à haute pression, destiné à être utilisé dans l'analyse de matériaux optiquement actifs, comprend une source de rayonnement à diode laser à semi-conducteur (10), un support (13) d'échantillons d'expérimentation à travers lequel passe le rayonnement provenant de la source de rayonnement et se dirigeant sur un détecteur (16). Un polariseur (11) et un analyseur (15) coopèrent avec un modulateur (12) qui module la rotation de la polarisation du rayonnement provenant du laser.

公开(公告)号：EP0022054A3

公开(公告)日：1981-07-29

申请号：EP80730039

申请日：1980-06-04

Applicant: Franz Schmidt & Haensch GmbH & Co.

Inventor： Mau, Lothar

IPC: G01J04/04

CPC classification number: G01J4/04

公开(公告)号：EP3940368B1

公开(公告)日：2024-10-09

申请号：EP19920558.4

申请日：2019-07-17

IPC: G01N21/19 ,  G01N21/21 ,  G01J4/04

CPC classification number: G01N21/19 ,  G01J4/04 ,  G01N2021/21620130101

公开(公告)号：EP4394332A1

公开(公告)日：2024-07-03

申请号：EP23000002.8

申请日：2023-01-01

Applicant: POLDI microelectronics GmbH

Inventor： Grau, Günter

IPC: G01D5/34 ,  G01J4/04 ,  G02B5/30 ,  H01L27/146

CPC classification number: G01J4/04 ,  G02B5/3025 ,  G01D5/344

Abstract: Die Erfindung betrifft ein Verfahren zur iterativen Erzeugung einer Matrix aus Grundelementen, wobei Grundelemente Sensoren oder Antennen mit speziellen Eigenschaften oder anderer Ausrichtung sowie elektronische Bauelemente mit unterschiedlicher Beschaltung sein können. Es wird vorgeschlagen, dass zuerst eine Grundmatrix gebildet wird, die mindestens alle Grundelemente einmal beinhaltet, die jedoch auch leere Elemente, nämlich Positionen, die nicht mit einem der Grundelemente besetzt sind, beinhalten kann, dass Modifikationsoperatoren wie Drehen und Spiegeln iterativ angewendet werden, durch die sich die Grundmatrix oder eine aus ihr hervorgegangene Matrix in eine modifizierte Matrix überführen lässt, dass Erweiterungsoperatoren iterativ angewendet werden, die aus mehreren ggfs. modifizierten Matrizen der vorherigen Iteration durch Kopieren, Drehen oder Spiegeln eine größere Matrix bilden, indem Teile der größeren Matrix mit den ggfs. modifizierten kleineren Matrizen befüllt werden, dass virtuelle Experimente durchgeführt werden, bei denen die Eigenschaften einer erzeugten Matrix durch systematische Erzeugung von gezielt fehlerbehafteten Werten untersucht werden, aus denen sich ein Fehlersignal ableiten lässt, dass zur Erzeugung einer komplexen Matrix zuerst alle Permutationen von nächst-größeren Matrizen aus Erweiterungsoperatoren gebildet und durch virtuelle Experimente bewertet werden, anschließend die nächst-größeren Matrizen mit den kleinsten Fehlersignalen selektiert werden, sodann aus diesen sukzessive nächst-größere Matrizen aus Erweiterungsoperatoren gebildet und durch virtuelle Experimente bewertet werden, bis das Fehlersignal eine vorgegebene Grenze unterschreitet.

公开(公告)号：EP4390484A1

公开(公告)日：2024-06-26

申请号：EP22215441.1

申请日：2022-12-21

Applicant: Imec VZW ,  Katholieke Universiteit Leuven KU Leuven Research & Development

Inventor： Ali, Farhan ,  Figeys, Bruno ,  Gehlhaar, Robert ,  Genoe, Jan

IPC: G02B6/27 ,  G01J4/04 ,  G01J3/02 ,  G01J3/28

CPC classification number: G01J4/04 ,  G01J3/0205 ,  G01J3/0216 ,  G01J3/2823

Abstract: According to an aspect of the present inventive concept there is provided a device for polarization dependent imaging, comprising:
a detector comprising light sensitive elements;
a plurality of light propagating units, each comprising a polarization splitter having a receiving end for receiving incident light, and comprising a first and a second waveguide.
The first and second waveguides comprise a first and second portion of the receiving end. The first and second waveguides comprise a first and second distributing end, separate from each other. The polarization splitter is configured to propagate received light to the distributing ends. Each of the portions has an elongated shape such that propagation of light in the waveguides is dependent on the light's linear polarization. The elongated shapes are angled with respect to each other, such that the waveguides are configured to propagate different linear polarization directions.
Each light propagating unit is arranged such that light at the first and second distributing ends is output towards a first and second light sensitive element, respectively.

公开(公告)号：EP3028353B1

公开(公告)日：2018-07-18

申请号：EP14744344.4

申请日：2014-07-28

Applicant: Koninklijke Philips N.V.

Inventor： WEICHMANN, Ulrich ,  CARPAIJ, Mark

IPC: H01S5/42 ,  H01S5/183 ,  H01S5/068 ,  G01B11/25 ,  G06T7/593 ,  G01J4/04

CPC classification number: H01S5/18355 ,  G01B11/25 ,  G01J4/04 ,  G06T7/593 ,  H01S5/06821 ,  H01S5/18386 ,  H01S5/423 ,  H04N13/204

Abstract: The invention describes a laser device (10) comprising an array (50) of laser emitters (100) and a control unit (200), the array (50) comprises at least a first sub array (110) of laser emitters and a second sub array (120) of laser emitters, wherein the first sub array (110) emits laser light of a first polarization and the second sub array (120) emits laser light of a second polarization being different from the first polarization, and wherein the control unit (200) is adapted to control the first sub array (110) and the second sub array (120) such that the polarization of the laser light emitted by the array (50) can be changed. The invention further describes a sensor device (300) and an optical detection system (400) comprising such a laser device (10). Furthermore, a method of determining the shape of an object by means of the optical detection system (400) is described.

公开(公告)号：EP3093636A4

公开(公告)日：2017-11-29

申请号：EP15733176

申请日：2015-01-06

Applicant: GRADUATE SCHOOL SHENZHEN TSINGHUA UNIV

Inventor： MA HUI ,  CHANG JINTAO ,  ZENG NAN ,  HE YONGHONG ,  LIAO RAN ,  SUN SHUQING ,  HE HONGHUI ,  CHEN ZHENHUA

IPC: G01J4/00

CPC classification number: G01J4/04

Abstract: Disclosed are a light polarization state detection apparatus, a detection method and a light polarization state modulation method. The light polarization state detection apparatus comprises a lens with a variable birefringence feature as an optical phase modulator, a polarizer as a SOP analyzer, a plurality of common lenses and a CCD as imaging devices, and a data processing and displaying unit. The SOP detection apparatus uses special birefringence distribution of birefringence optical elements such as a GRIN lens to obtain the Stokes parameters of light to be measured by CCD in a single frame imaging, and can rapidly accurately measure the SOP. The SOP detection apparatus is simple in structure, lower in cost without containing any motion parts and electrical modulation devices, and is a fully static full Stokes parameters SOP detection apparatus. The light polarization state modulation apparatus comprises a GRIN lens with a variable birefringence feature. The modulation method is continuous in each position of a modulation aperture, rich in modulation variety and low in cost.