ABSOLUTE INTENSITY DETERMINATION FOR A LIGHT SOURCE IN LOW LEVEL LIGHT IMAGING SYSTEMS
    201.
    发明公开
    ABSOLUTE INTENSITY DETERMINATION FOR A LIGHT SOURCE IN LOW LEVEL LIGHT IMAGING SYSTEMS 有权
    绝对强度测量为微光图象系统的光源

    公开(公告)号:EP1409973A2

    公开(公告)日:2004-04-21

    申请号:EP02742268.2

    申请日:2002-06-20

    CPC classification number: G01J1/08 G01N21/278

    Abstract: The invention describes systems and methods to obtain and present imaging data in absolute units. The systems and methods convert relative image data produced by a camera to absolute light intensity data using a compensation factor. The compensation factor accommodates for hardware and specific imaging conditions in the imaging system that variably affect camera output. The present invention determines the compensation factor based on assessing the output of the camera against a known light source for a specific set of imaging conditions in the imaging system. The compensation factor is then stored in memory corresponding to the specific set of imaging conditions. Upon subsequent imaging with the set of imaging conditions, the corresponding compensation factor is called from memory and applied to the camera output. A compensation factor may be determined and stored for each hardware state and imaging condition available to the imaging system.

    De-embedment of optical component characteristics and calibration of optical receivers using rayleigh backscatter
    202.
    发明公开
    De-embedment of optical component characteristics and calibration of optical receivers using rayleigh backscatter 有权
    装置和方法,用于通过瑞利反向散射的装置的光学元件和光接收器的校准的特征提取

    公开(公告)号:EP1392011A2

    公开(公告)日:2004-02-25

    申请号:EP03013727.7

    申请日:2003-06-17

    CPC classification number: G01M11/3109 G01J1/08 G01N2021/4709

    Abstract: Method and system (300, 600, 800, 900) are disclosed for de-embedding optical component characteristics from optical device measurements. In particular, the invention uses frequency domain averaging of the RBS on both sides of an optical component to determine one or more of its optical characteristics. Where the RBS has a slope (e.g., as in the case of a lossy fiber), a frequency domain least square fit can be used to determine the optical component characteristics. In addition, the invention uses a reference DUT (604) to correct for variations in the frequency response of a photoreceiver (332). A reference interferometer (808) is used in the invention to correct for sweep non-linearity of the TLS (322). The optical component characteristics are then de-embedded from optical device measurements to provide a more precise analysis of the optical device.

    Abstract translation: 方法和系统(300,600,800,900)是游离缺失盘用于从光学设备测量去嵌入的光学部件的特性。 特别地,本发明使用上的光学部件的bothsides的RBS的频率域平均确定性矿的一个或多个它的光学特性。 其中该RBS具有斜面(例如,如在有损纤维的情况下),频域最小二乘拟合可以用于确定性矿光学部件的特性。 此外,本发明使用的参考DUT(604),以校正在光电接收器(332)的频率响应的变化。 参考干涉仪(808)是本发明用于校正所述TLS(322)的扫掠非线性。 光学部件的特性,然后去嵌入从光学装置测量,以提供所述光学装置的一个更精确的分析。

    Messverfahren zur Bestimmung der optischen Transmission oder Reflexion
    204.
    发明公开
    Messverfahren zur Bestimmung der optischen Transmission oder Reflexion 审中-公开
    测定方法用于确定所述光传输或反射

    公开(公告)号:EP1139079A3

    公开(公告)日:2002-12-11

    申请号:EP01890086.0

    申请日:2001-03-19

    CPC classification number: G01J1/08 G01J3/06 G01J3/10 G01N21/255

    Abstract: Bei einem Messverfahren zur Bestimmung der optischen Transmission oder Reflexion sowie davon abgeleiteter Messgrößen, wobei die Messstrahlung ausgehend von einer modulierten Strahlungsquelle nach der Wechselwirkung mit einem Messobjekt, vorzugsweise in einer Messküvette, von einem Detektor erfasst, in ein elektrisches Signal umgewandelt, frequenzselektiv verstärkt und einer Auswerteeinrichtung zugeführt wird, ist zur Verbesserung des Signal/Rauschabstandes ein Halbleiterlaser oder eine LED vorgesehen, dessen bzw. deren Leuchtstärke sinusförmig moduliert wird. Die sinusförmige Modulation der Leuchtstärke kann durch Stromeinprägung und/oder Modulation der Versorgungsspannung der Lichtquelle oder durch eine elektrooptische Modulation der Messstrahlung erfolgen.

    Polychromatic source calibration by one or more spectrally filtered photodetector currents
    206.
    发明公开
    Polychromatic source calibration by one or more spectrally filtered photodetector currents 失效
    校准由设置有光电探测器的一个或多个光谱滤波器装置一个多色光源。

    公开(公告)号:EP0558854A1

    公开(公告)日:1993-09-08

    申请号:EP92311234.6

    申请日:1992-12-09

    Abstract: A light source (12) emits radiation which is maintained at a desired intensity by use of a photodetector which views the radiation and has a fixed relationship between incident radiation and output photodetector (18) current. Intensity of the radiation is established by varying electric current applied to the source, via a feedback loop (42, 24, 22, 34), to attain a reference value of the photodetector current, the photodetector current being representative of the desired value of radiation intensity. This procedure may be performed first in an air environment with a specific optical assembly of source and photodetector to establish the reference value of photodetector current for a desired value of radiation intensity. Thereupon, the optical system may be operated in a vacuum environment, and a monitoring of the photodetector current establishes the desired value of radiation intensity. Alternatively, the source is operated at a fixed value of excitation current, and an iris (44) or other radiation attenuator is operated to produce the reference value of photodetector current.

    Abstract translation: 一种光源(12)发射辐射所有这一切是通过使用光电检测器哪些视图的辐射,并具有入射辐射和输出光电检测器(18)的电流之间的固定关系保持在一个期望的强度。 的辐射的强度是通过改变施加到源极电流,通过反馈回路建立(42,24,22,34)以获得光电检测器电流的基准值,光电检测器电流代表辐射的期望值的 强度。 该过程可以首先在空气环境与源和光检测器的一个特定的光学组件以建立光检测器的电流的基准值对辐射强度的期望值来进行。 有在,光学系统可在真空环境中操作,并且光电检测器电流的监视建立辐射强度的所需的值。 可替换地,源在励磁电流的固定值操作,并且在虹膜(44)或其它辐射衰减器被操作以产生光检测器的电流的基准值。

    A method and apparatus for automatically calibrating a CRT display
    207.
    发明公开
    A method and apparatus for automatically calibrating a CRT display 失效
    Verfahren und Vorrichtung zur automatischen Kalibrierung einesKathodenstrahlsichtgeräts。

    公开(公告)号:EP0539943A1

    公开(公告)日:1993-05-05

    申请号:EP92118420.6

    申请日:1992-10-28

    CPC classification number: G01J1/32 G01J1/08 G01J3/506 G09G1/285

    Abstract: System using uses a single channel light meter to measure the actual red, green and blue light output response curves of a CRT monitor to the range of possible input monitor code values for each color. A computer is used to transform a desired corresponding tone scale through the corresponding response curve to obtain a look-up table or video shaper that calibrates the monitor to the desired corresponding tone scale. The transformation includes obtaining a tone scale intensity value for each possible input value and searching the actual response values for a closest match. The input monitor code value used to obtain the actual response matching intensity for the possible input value is the calibrated value displayed by the monitor when an image includes the possible input value. The system is used throughout the life of the monitor to bring the monitor back to calibration as it changes.

    Abstract translation: 系统使用单通道光度计测量CRT监视器的实际红色,绿色和蓝色光输出响应曲线到每种颜色的可能输入监视器代码值的范围。 计算机用于通过相应的响应曲线来转换期望的对应色阶,以获得将监视器校准到期望的对应色阶的查找表或视频整形器。 该变换包括获得每个可能的输入值的色阶强度值,并且搜索实际响应值以获得最接近的匹配。 用于获得可能输入值的实际响应匹配强度的输入监视码值是当图像包含可能的输入值时由监视器显示的校准值。 该系统在整个使用寿命期间使用,使显示器恢复校准,因为它改变。

    LICHTSAMMEL-VORRICHTUNG UND DEREN ANWENDUNG FÜR SPEKTROSKOPISCHE ZWECKE
    209.
    发明公开
    LICHTSAMMEL-VORRICHTUNG UND DEREN ANWENDUNG FÜR SPEKTROSKOPISCHE ZWECKE 失效
    聚光装置和他们的光谱用途的应用。

    公开(公告)号:EP0112347A1

    公开(公告)日:1984-07-04

    申请号:EP83901891.0

    申请日:1983-06-23

    Abstract: Le dispositif permettant de collecter le rayonnement d'une source de lumière (20) à l'intérieur d'un miroir concave, comporte un réflecteur (10') cylindrique ou parabolique ou elliptique ayant une symétrie de rotation, qui est recouvert par un réflecteur du rayon de retour (40), courbe ou plan, présentant une ouverture (42). Le réflecteur du rayon de retour (40) renvoie une partie de la lumière vers la zone de la source (20) et provoque, à la suite de la transparence partielle de cette zone, l'émission d'un faisceau de lumière intensif et quasi-parallèle à travers l'ouverture (42). Cette lumière peut par exemple être amenée, après passage d'un élément monochromateur (31), vers une cellule de mesure à gaz (68). Le miroir (57) ayant une forme complémentaire à celle du réflecteur (10', 10") sert à augmenter l'efficacité optique du dispositif. Le signal de mesure peut être capté par un détecteur de lumière ou un microphone (69). Dans ce dernier cas, il est nécessaire d'utiliser un dispositif d'échange de gaz découplé acoustiquement qui peut être réalisé par exemple par des tubes capillaires remplis par le fluide (75, 75').

Patent Agency Ranking