POLARIZATION ANALYZER
    23.
    发明公开
    POLARIZATION ANALYZER 审中-公开
    POLARISATIONSANALYSIERER

    公开(公告)号:EP1560044A4

    公开(公告)日:2008-03-19

    申请号:EP03741373

    申请日:2003-07-14

    CPC classification number: G02B5/3041 G02B5/3033 G02B27/288

    Abstract: A thin polarizer array and a wavelength plate array that are composed of micro regions having different optical axis directions and wavelength characteristics and have a high extinction ratio and a low insertion loss, and a polarization analyzer using them are disclosed. An array of micro periodic grooves are formed on a substrate, with the directions changed from one region to another. An alternating multilayer film formed by alternating a layer of high refractive index material such as Si or Ta2O5 and a layer of low refractive index material such as SiO2 is formed by bias sputtering. By selecting a condition that each layer maintains its periodic projecting/recessed shape, an array of photonic crystal polarizer is formed. By mounting this array of photonic crystal polarizer in a photodetector array, a polarization analyzer that is small, has no movable part, is composed of a small number of components, and enables high-precision measurement is constituted.

    Abstract translation: 公开了由具有不同的光轴方向和波长特性并具有高消光比和低插入损耗的微区域构成的薄偏振器阵列和波长板阵列以及使用它们的偏振分析器。 在衬底上形成微型周期性沟槽阵列,其方向从一个区域变为另一个区域。 通过偏压溅射形成交替的多层膜,该交替的多层膜通过交替层叠诸如Si或Ta 2 O 5的高折射率材料和诸如SiO 2的低折射率材料层而形成。 通过选择每层保持其周期性投影/凹陷形状的条件,形成光子晶体偏振器阵列。 通过将这种光子晶体偏振器阵列安装在光电检测器阵列中,偏振分析器很小,没有可移动部分,由少量元件组成,并且能够实现高精度测量。

    ANORDNUNG UND VERFAHREN ZUR MIKROSKOP-OPTISCHEN ERFASSUNG VON ANISOTROPIEN
    24.
    发明公开
    ANORDNUNG UND VERFAHREN ZUR MIKROSKOP-OPTISCHEN ERFASSUNG VON ANISOTROPIEN 审中-公开
    安排和方法的各向异性显微镜光学检测

    公开(公告)号:EP1846739A1

    公开(公告)日:2007-10-24

    申请号:EP06705809.9

    申请日:2006-01-19

    CPC classification number: G01N21/21 G01J4/04 G02B21/14

    Abstract: The invention relates to an arrangement and method for microscopic optical recording of anisotropies in microscopically small objects, which affect the polarisation properties of light. The invention particularly relates to an arrangement comprising a beam path (106), running between a light source (102) and an optical sensor (104), whereby the object (108) is arranged in said beam path (106). An element for polarisation optical analysis and an element (116) which may be influenced by a controller (122) are further arranged in said beam path (106) which cause a controlled rotation of the light passing through the polarisation property with relation to a rotation angle. The controller (122) of the arrangement (100) comprises means by means of which at least three different rotation angles may be defined for recording of an image of the object (108) for each of the at least three rotational angles by means of the optical sensor (104). The arrangement (100) is so embodied such that the images of an isotropic region of the object (108) are essentially the same with relation to the rotation angle.

    APPARATUS AND METHOD FOR DETECTING AN AMOUNT OF DEPOLARIZATION OF A LINEARLY POLARIZED BEAM
    25.
    发明授权
    APPARATUS AND METHOD FOR DETECTING AN AMOUNT OF DEPOLARIZATION OF A LINEARLY POLARIZED BEAM 有权
    装置和方法用于检测的线偏振光束的降偏振度

    公开(公告)号:EP1340064B8

    公开(公告)日:2007-05-09

    申请号:EP01978410.7

    申请日:2001-10-12

    CPC classification number: G01N21/23 G01J4/04

    Abstract: The present invention relates to an apparatus and a method for detecting an amount of depolarization of a linearly polarized beam transmitted by a birefringent medium in the direction of the optical axis thereof. The apparatus comprises a first beam splitter (7) for separating an non-axis portion (2) of said linearly polarized beam into the orthogonal components (3, 4), two photodetectors (8, 9) for detecting each components (3, 4), a second beam splitter (12) for separating an off-axis portion (11) of said linearly polarized beam into the orthogonal components (15, 16), wherein said second beam splitter (12) is disposed off-axis of the incident linearly polarized beam (1), a second set of photodetectors for detecting the components (15, 16) separated by said second beam splitter (12), and subtracting device (17) for subtracting the signals received by the second set of photodetectors (13, 14) from the respective signals received by the first tow photodetectors (8, 9).

    Systeme d'imagerie polarimetrique electronique pour appareil de colposcopie
    26.
    发明公开
    Systeme d'imagerie polarimetrique electronique pour appareil de colposcopie 有权
    极地仪器电子有限公司

    公开(公告)号:EP1738682A1

    公开(公告)日:2007-01-03

    申请号:EP05300550.0

    申请日:2005-07-01

    Abstract: L'invention concerne un système d'imagerie polarimétrique électronique pour appareil de colposcopie destiné à l'observation in vivo d'un col utérin, l'appareil de colposcopie comportant une source de lumière pour éclairage du col à observer et des moyens d'observation au moins visuels d'une image dudit col, le trajet optique de l'éclairage vers le col et le trajet optique de l'image en retour du col étant séparés l'un de l'autre sur au moins une partie de leurs trajets. Selon l'invention, le système comporte un boîtier adaptateur polarimétrique amovible dans la partie séparée des trajets optiques de l'éclairage et de l'image, ledit boîtier adaptateur polarimétrique comportant un générateur d'états de polarisation (PSG) sur le trajet optique de l'éclairage et un analyseur de polarisation (PSA) sur le trajet optique de l'image, le générateur d'états de polarisation (PSG) et l'analyseur de polarisation (PSA) étant commandés. Plusieurs niveaux de caractérisation polarimétrique sont possibles. Un boîtier adaptateur est revendiqué.

    Abstract translation: 该系统具有偏振适配器外壳,其可在照明和图像光路的分离部分中移除。 壳体包括位于照明光路上的偏振态发生器(17)和位于图像光路上的偏振分析器(16),其中发生器和分析仪是可控的并且位于支撑板(18)上。 壳体具有在后一路径上倾斜的半反射叶片,并且在后一路径上去除一部分发光信号以将其反射在电子图像传感器上。 还包括用于体内监测子宫颈的阴道镜装置的适配器壳体的独立权利要求。

    Polarimeter to similtaneously measure the stokes vector components of light
    27.
    发明公开
    Polarimeter to similtaneously measure the stokes vector components of light 有权
    Polarimeter zur gleichzeitigen Messung der Stokes-parameter von Licht

    公开(公告)号:EP1705469A1

    公开(公告)日:2006-09-27

    申请号:EP06251211.6

    申请日:2006-03-07

    CPC classification number: G01J4/04

    Abstract: A polarimeter (20) simultaneously measures the Stokes vectors of a light beam (22) using an optics unit (24) with a slit (32) with a slit axis (34), a foreoptics (28) that focuses the light beam (22) from the point location through the slit (32), a collimator (38) that receives the light beam (22) from the slit (32) and collimates the light beam (22), a cylinder lens (42) that receives the light beam (22) from the collimator (38), wherein the cylinder lens (42) has a cylindrical axis (44) parallel to the slit axis (34), a re-imaging lens (48) that images the light beam (22) from the cylinder lens (42) onto a focal plane (50), and a set (54) of polarizing filters (56) including three polarization filters (58, 60, 62) having three different polarizations. The polarization filters (58, 60, 62) are adjacent to each other in a direction perpendicular to the slit axis (34) and lie between the cylinder lens (42) and the focal plane (50) so that the light beam (22) is directed onto the set (54) of polarizing filters (56).

    Abstract translation: 旋光仪(20)使用光学单元(24)同时测量光束(22)的斯托克斯矢量,所述光学单元具有狭缝(32),狭缝轴线(34),聚焦光束(22)的前光(28) )从所述点位置穿过所述狭缝(32),准直器(38),其从所述狭缝(32)接收所述光束(22)并准直所述光束(22);柱面透镜(42),其接收所述光 来自准直器(38)的光束(22),其中柱面透镜(42)具有平行于狭缝轴线(34)的圆柱形轴线(44),对光束(22)成像的再成像透镜(48) 从柱面透镜(42)到焦平面(50),以及包括具有三个不同偏振的三个偏振滤光器(58,60,62)的偏振滤光器(56)的组(54)。 偏振滤光器(58,60,62)在垂直于狭缝轴线(34)的方向上彼此相邻并且位于柱面透镜(42)和焦平面(50)之间,使得光束(22) 被引导到偏振滤光器(56)的组(54)上。

    Spectroscopic polarimetry
    28.
    发明公开
    Spectroscopic polarimetry 有权
    光谱旋光仪

    公开(公告)号:EP1693658A1

    公开(公告)日:2006-08-23

    申请号:EP06000634.3

    申请日:2006-01-12

    CPC classification number: G01J4/04

    Abstract: To effectively reduce a measurement error in a parameter indicating a state of spectroscopic polarization generated by variations in retardation of a retarder (R 1 , R 2 ) due to a temperature change or other factors, while holding a variety of properties of a channeled spectroscopic polarimeter. By noting that reference phase functions φ 1 (σ) and φ 2 (σ) are obtained by solving an equation from each vibration component contained in a channeled spectrum P(σ), the reference phase functions φ 1 (σ) and φ 2 (σ) are calibrated concurrently with measurement of spectrometric Stokes parameters S 0 (σ), S 1 (σ), S 2 (σ) , and S 3 (σ).

    Abstract translation: 为了在保持通道式分光偏振计的各种特性的同时有效地减小指示由于温度变化或其他因素引起的延迟器(R1,R2)的延迟产生的分光偏振状态的参数中的测量误差。 通过注意通过根据包含在通道频谱P(σ)中的每个振动分量求解方程获得参考相位函数φ1(σ)和φ2(σ),校准参考相位函数φ1(σ)和φ2(σ) 同时测量光谱斯托克斯参数S0(σ),S1(σ),S2(σ)和S3(σ)。

    Optical heterodyne receiver
    30.
    发明公开
    Optical heterodyne receiver 审中-公开
    光外差接收机

    公开(公告)号:EP1443688A3

    公开(公告)日:2006-04-05

    申请号:EP03021207.0

    申请日:2003-09-18

    CPC classification number: H04B10/07 G01J4/04

    Abstract: The polarization of the lightwave at the input to a heterodyne receiver can be determined by measurements of the amplitude of electrical signals without the need for phase measurements. This allows more accurate measurements of the polarization in the presence of noise and allows a determination of the degree of polarization of the lightwave.

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