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    LIQUID CRYSTAL FOURIER TRANSFORM IMAGING SPECTROMETER
    61.
    发明公开
    LIQUID CRYSTAL FOURIER TRANSFORM IMAGING SPECTROMETER 审中-公开
    FOURIER变换BILDGEBUNGSSPEKTROMETER

    公开(公告)号：EP3015832A1

    公开(公告)日：2016-05-04

    申请号：EP15190915.7

    申请日：2015-10-21

    Applicant: Palo Alto Research Center, Incorporated

    Inventor： HEGYI, Alex ,  MARTINI, Joerg

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

    CPC classification number: G01J3/2823 ,  G01J3/0224 ,  G01J3/0256 ,  G01J3/0272 ,  G01J3/447 ,  G01J3/45 ,  G01J3/4531 ,  G01J3/4537 ,  G02F1/133528 ,  G02F1/137 ,  G02F1/141 ,  G02F2001/13355 ,  G09G2310/08 ,  H04N5/2254

    Abstract: A hyperspectral imaging system has a processor to receive hyperspectral imaging parameters and produce a series of images to be acquired at a series of retardances at a series of retardance times, a hyperspectral imaging component having an input polarizer to polarize an incoming beam of light, a liquid crystal variable retarder to receive the polarized beam of light and to produce wavelength-dependent polarized light, an output polarizer to receive the wavelength-dependent polarized light and to convert polarization state information into a form detectable as light intensity, a voltage source connected to the liquid crystal variable retarder, and a retardance controller. The retardance controller receives the series of retardances at a series of retardance times and produces a series of voltages at a series of voltage times to apply to the liquid crystal variable retarder. A focal plane array, synchronized with the retardance controller, receives the light in a form detectable as light intensity and converts the light to a series of images.

    Abstract translation: 高光谱成像系统具有处理器，用于接收高光谱成像参数并产生将在一系列延迟时间下以一系列延迟获取的一系列图像，具有输入偏振器的高光谱成像组件以偏振入射光束， 液晶可变延迟器，用于接收偏振光束并产生依赖于波长的偏振光;输出偏振器，用于接收与波长相关的偏振光，并将偏振状态信息转换成可检测为光强度的形式;电压源连接到 液晶可变延迟器和延迟控制器。 延迟控制器在一系列延迟时间处接收一系列延迟，并产生一系列电压，以施加到液晶可变延迟器。 与延迟控制器同步的焦平面阵列以可以作为光强度检测的形式接收光，并将光转换成一系列图像。

    A FOURIER-DOMAIN OPTICAL COHERENCE TOMOGRAPHY IMAGER
    62.
    发明公开
    A FOURIER-DOMAIN OPTICAL COHERENCE TOMOGRAPHY IMAGER 有权
    的图像在傅里叶域中形成光学相干断层扫描

    公开(公告)号：EP1994361A2

    公开(公告)日：2008-11-26

    申请号：EP07718084.2

    申请日：2007-01-19

    Applicant: Optovue, Inc.

    Inventor： ZHAO, Yonghua ,  WEI, Jay

    IPC: G01B11/02

    CPC classification number: G01B9/02044 ,  G01B9/02068 ,  G01B9/02087 ,  G01B9/02091 ,  G01J3/02 ,  G01J3/0289 ,  G01J3/45 ,  G01J3/4537

    Abstract: A Fourier-domain optical coherence tomography (OCT) imager is presented. An OCT imager according to the present invention can have an auto-alignment process. The auto-alignment process automatically adjusts at least one optical component of a spectrometer of the imager so that the spectrometer is aligned during an imaging session. In addition to the auto-alignment process, OCT spectra are normalized for background spectra and for noise characteristics in order to provide a more accurate and clear OCT image.

    Polarisationsinterferometer
    65.
    发明公开
    Polarisationsinterferometer 失效
    Polarisationsinterferometer。

    公开(公告)号：EP0605391A2

    公开(公告)日：1994-07-06

    申请号：EP94101353.4

    申请日：1990-01-15

    Applicant: BÜHLER AG ,  Bran + Lübbe GmbH

    Inventor： Wagner, Heinz ,  Labhart, Martin ,  Glaus, Ulrich

    IPC: G01J3/453 ,  G01J3/447

    CPC classification number: G01J3/447 ,  G01B2290/70 ,  G01J3/4537 ,  G01J2009/0261

    Abstract: Das Polarisationsinterferometer weist eine Lichtquelle (1), einen Kollimator (2), ein erstes polarisierendes Element (3), ein System von doppelbrechenden Elementen (4,5,6) und ein zweites polarisierendes Element (7) auf, welches das aus dem doppelbrechenden Element (4,5,6) austretende Licht polarisiert und einem Photonendetektor (8) zuführt.
    Das doppelbrechende Element (4,5,6) besteht dabei aus zwei, längs entgegengesetzter Seitenflächen gegeneinander verschiebbar angeordneten, sich zu einem Quader ergänzenden, optischen Keile (5,6) und einer als Kompensator dienenden doppelbrechenden planparallelen Platte (4).
    Die optische Achse des Kompensators (4) ist gegenüber derjenigen der beiden Keile (5,6) in der Ebene senkrecht zum Lichtstrahl um einen endlichen Winkel verdreht, wobei die optischen Achsen der beiden Keile (5,6) übereinstimmen.
    Die optischen Achsen der beiden Polarisatoren (3,7) stehen senkrecht oder parallel zueinander und sind nicht parallel zu den Achsen der beiden Keile (5,6) des doppelbrechenden Elementes (4,5,6) ausgerichtet.
    Ein monochromatischer Lichtstrahl (9) wird in den von der Lichtquelle (1) erzeugten parallen Lichtstrahl eingekoppelt und nach Durchquerung mindestens des doppelbrechenden Elementes (4,5,6) wieder ausgekoppelt und auf einen Photonendetektor (13) geführt.

    Abstract translation: 偏振干涉仪具有光源（1），准直器（2），第一偏振元件（3），双折射（双折射）元件（4,5,6）和第二偏振元件（7）的系统， ，其将从双折射元件（4,5,6）出射的光偏振，并将其提供给光子检测器（8）。 双折射元件（4,5,6）由两个光楔（5,6）组成，它们的纵向相对的侧表面相对于彼此可移位并组成平行六面体，并且具有双折射平面平行板 （4）作为补偿者。 补偿器（4）的光轴相对于垂直于光束的平面中的两个楔形物（5,6）的轴线有限角度扭转，两个楔形物（5,6）的光轴 恰逢。 两个偏振器（3,7）的光轴彼此垂直或平行，并且不平行于双折射元件（4,5,6）的两个楔形物（5,6）的轴线对准。 单色光束（9）耦合到由光源（1）产生的平行光束中，并且在至少穿过双折射元件（4,5,6）之后，再次耦合并被引导到光子检测器 （13）。

    REFRACTIVELY SCANNED INTERFEROMETER.
    66.
    发明公开
    REFRACTIVELY SCANNED INTERFEROMETER. 失效
    LICHTBRECHEND ABGETASTETER干涉仪。

    公开(公告)号：EP0016147A1

    公开(公告)日：1980-10-01

    申请号：EP79900875

    申请日：1980-03-25

    Applicant: DOYLE W M

    Inventor： DOYLE WALTER M

    IPC: G01J3/453 ,  G01B9/02 ,  G02B5/04

    CPC classification number: G01J3/4537

    Abstract: L'interferometre, de preference du type de Michelson, possede des reflecteurs (19, 21) associes aux bras de l'interferometre (15, 17) qui sont stationnaires et le balayage est effectue par le mouvement un element de refraction en forme de coin (23) dans l'un des bras, l'orientation de l'element et sa direction de mouvement (24) etant dans des directions specifiques mathematiquement derivees qui diminuent les deplacements en translation du rayon optique transmis.

    Abstract translation: 干涉仪（最好是迈克尔逊型）具有与干涉仪臂（15,17）相关联的反射镜（19,21），干涉仪臂（15,17）是静止的，并且通过楔形折射元件的移动进行扫描。 （23），所述元件的方向及其运动方向（24）处于减少所述透射光线的平移运动的特定数学导出方向上。

    IMPROVEMENTS IN OR RELATING TO HYPERSPECTRAL IMAGING
    69.
    发明公开
    IMPROVEMENTS IN OR RELATING TO HYPERSPECTRAL IMAGING 有权
    VERBESSERUNGEN AN ODER IM ZUSAMMENHANG MIT HYPERSPEKTRALER BILDGEBUNG

    公开(公告)号：EP2948745A1

    公开(公告)日：2015-12-02

    申请号：EP14701529.1

    申请日：2014-01-24

    Applicant: Lambda-X

    Inventor： BEGHUIN, Didier

    IPC: G01J3/453 ,  G01J3/02

    CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/0224 ,  G01J3/45 ,  G01J3/4537

    Abstract: Described herein is a hyperspectral imaging system (500) in which a polarising beam splitter (510), a Wollaston prism (520), an optical system (530), and a plane mirror (540) are arranged on an optical axis (550) of the imaging system (500). An imaging detector (560) is provided on which radiation is focussed by an imaging lens (570). The Wollaston prism (520) is imaged on itself by the optical system (530) and the plane mirror (540) so that translation of the Wollaston prism (520) in a direction parallel to a virtual split plane of the prism effectively provides an optical path length difference that is the same for all points in the object field.

    Abstract translation: 这里描述的是一种超光谱成像系统，其中偏振分束器，沃拉斯顿棱镜，光学系统和平面镜被布置在成像系统的光轴上。 提供了一种成像检测器，辐射由成像透镜聚焦在该成像检测器上。 Wollaston棱镜通过光学系统和平面镜自身成像，使得Wollaston棱镜在平行于棱镜的虚拟剖面的方向上的平移有效地提供了光路长度差异，其对于 对象字段。

    IMAGING APPARATUS
    70.
    发明公开
    IMAGING APPARATUS 审中-公开
    与渥拉斯顿棱镜的图像形成分光计

    公开(公告)号：EP1518095A1

    公开(公告)日：2005-03-30

    申请号：EP03732738.4

    申请日：2003-06-19

    Applicant: Qinetiq Limited

    Inventor： BEALE,J.E.PQinetiQ,Malvern Tech.Cen.Bldg.KXRM.9 ,  HARVEY,A.RSchool of Engineering&Physical Sciences ,  FLETCHER-HOLMES,D.W.School of Eng.&Phys.Sciences

    IPC: G01J3/28 ,  G01J3/453

    CPC classification number: G01J3/4537 ,  G01J3/0205 ,  G01J3/2823

    Abstract: The present invention relates to an imaging apparatus and comprises input and output polarisers (20,28), a first polarising beam splitter (22) and at least one additional polarising beam splitter (24), a light sensitive detector (30) and focussing means (26) arranged on an axis. The input polariser (20) resolves incident light into a single linear polarisation state. The first polarising beam splitter (22) receives light from the input polarises (20), and resolves it into equal magnitude orthogonally polarised rays which are mutually spaced and have a path difference therebetween. The or each additional polarising beam splitter (24) is arranged to receive light from the first polarising beam splitter (22). The transmission axis of the output polariser (28) is parallel to or perpendicular to the transmission axis of the input polarises (20) to resolve the orthogonally polarised light rays having past through the or each additional polarising beam splitter (24) into the same or perpendicular polarisation state as light resolved by the, first polariser (20). The first polarising beam splitter (22), the or each additional polarising beam splitter (24) and the focussing means (26) are mutually spaced such that said mutually spaced rays are brought to coincidence whereby interference fringes are produced, the detector (30) being arranged to detect the interference fringes. One beam splitter (24) is mounted for movement perpendicular to said axis, whereas the other beam splitter(s) (22) is/are rigidly mounted against movement.

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