LASER MICROSCOPE AND MICROSCOPY METHOD
    4.
    发明公开
    LASER MICROSCOPE AND MICROSCOPY METHOD 有权
    LASERMIKROSKOP在MIKROSKOPIEVERFAHREN

    公开(公告)号:EP3141942A1

    公开(公告)日:2017-03-15

    申请号:EP16179855.8

    申请日:2016-07-18

    发明人: TANAKA, Ryusuke

    IPC分类号: G02B21/00

    摘要: Fluorescence generated by multiphoton excitation can be observed simultaneously using multiple beams, and multiple points can be observed simultaneously with a high signal-to-noise ratio with low invasiveness. Provided is a laser microscope 1 including: modulation units 5 and 6 that apply different modulations to a plurality of ultrashort-pulse laser light beams of the same type emitted from a light source unit 3; an illumination optical system 7 that simultaneously focuses the plurality of ultrashort-pulse laser light beams, to which the different modulations are applied by the modulation units 5 and 6, onto different positions of a sample O; a fluorescence detecting device 8 that detects fluorescence generated at a focal position of each ultrashort-pulse laser light beam and performs photoelectric conversion of the fluorescence; and a demodulation unit 9 that demodulates an output from the fluorescence detecting device 8 based on modulation information from the modulation units 5 and 6.

    摘要翻译: 通过多光子激发产生的荧光可以使用多个光束同时观察到,并且可以同时观测到具有低侵入性的高信噪比的多个点。 本发明提供一种激光显微镜1,包括:调制单元5和6,其对从光源单元3发射的相同类型的多个超短脉冲激光束进行不同的调制; 照明光学系统7,其将通过调制单元5和6施加不同调制的多个超短脉冲激光束聚焦到样本O的不同位置; 荧光检测装置8,其检测在每个超短脉冲激光束的焦点处产生的荧光,并进行荧光的光电转换; 以及解调单元9,其基于来自调制单元5和6的调制信息来解调来自荧光检测装置8的输出。

    IMPROVEMENTS IN OR RELATING TO STRUCTURED ILLUMINATION MICROSCOPY UTILISING ACOUSTO-OPTIC DEFLECTORS
    5.
    发明公开
    IMPROVEMENTS IN OR RELATING TO STRUCTURED ILLUMINATION MICROSCOPY UTILISING ACOUSTO-OPTIC DEFLECTORS 审中-公开
    改进技术或与之相关的结构照明显微镜使用声光偏转器

    公开(公告)号:EP3126894A1

    公开(公告)日:2017-02-08

    申请号:EP15715800.7

    申请日:2015-03-19

    IPC分类号: G02B21/00 G02F1/01

    摘要: An apparatus (10) for structured illumination microscopy (SIM) comprises a pulsed femtosecond MiTai laser (11) operable to generate a pulsed beam. The beam pulses are directed on to a specimen (12) via an optical arrangement including a beam steering apparatus comprising a pair of acousto-optic deflectors AODx, AODy, each operable to vary the deflection angle of the beam in response to variation in the frequency of an applied acoustic deflection signal,and an acousto-optic modulator AOM. The frequency of the acoustic deflection signals applied to the AODs and/or the frequency of the acoustic compensation signal applied to the AOM in the present invention is dynamically modulated. This dynamic modulation can increase the effective AODxy scan angle in each direction by about 4 mrads (equivalent to a 15% increase in the area of the field of view). Furthermore, dynamic modulation of the compensation frequency also improves the evenness of the illumination over the field of view.

    摘要翻译: 对结构照明显微镜的装置(10)(SIM)包括脉冲飞秒激光Mitai(11),可操作以产生脉冲光束。 束脉冲被引导到通过在光学装置包括一光束转向装置,其包括一对声光偏转器的试样(12)AODx,AODy,每个可操作以改变所述光束的偏转角,响应于变化的频率 一个应用声学偏转信号的,并在声光调制器AOM。 施加到的AOD和/或在本发明中施加到AOM声学信号补偿的频率的声信号偏转的频率动态地调制。 这种动态调制可以通过约4兆拉德(相当于在视场的面积增加15%)增加每个方向上的有效AODxy扫描角。 进一步,频率补偿的动态调制,以便改善该照明在视场的均匀性。

    AUSWERTESCHALTUNG FÜR EINEN OPTOELEKTRONISCHEN DETEKTOR UND VERFAHREN ZUM AUFZEICHNEN VON FLUORESZENZEREIGNISSEN
    6.
    发明公开
    AUSWERTESCHALTUNG FÜR EINEN OPTOELEKTRONISCHEN DETEKTOR UND VERFAHREN ZUM AUFZEICHNEN VON FLUORESZENZEREIGNISSEN 审中-公开
    一种用于记录荧光事件的光电探测器的评估电路和方法

    公开(公告)号:EP3062088A3

    公开(公告)日:2016-11-30

    申请号:EP16159834.7

    申请日:2012-09-20

    摘要: Die Erfindung betrifft eine Auswerteschaltung (1) zum Auswerten der elektrischen Signale (A) eines zur Detektion von Photonen ausgebildeten optoelektronischen Detektors (32) bei der Aufnahme von Fluoreszenzereignissen unter Anregung mittels Lichtpulsen, umfassend einen Analog-Digital-Wandler (2) oder einen Trigger mit einem Eingang zur Verbindung mit einem Ausgang des Detektors (32) und mit einem Ausgang zur Ausgabe eines Digitalwerts (a), ein Schieberegister (3), wobei die Auswerteschaltung (1) so konfiguriert ist, dass während eines Beleuchtungszyklus zu unterschiedlichen Zeitpunkten aufgenommene Lichtintensitäten unabhängig voneinander in den Stufen des Schieberegister gespeichert werden.
    Die Erfindung betrifft ferner die Verwendung der Auswerteschaltung (1) zur zeitlichen Trennung von Fluoreszenz- und Streulicht von Fluoreszenzereignissen sowie ein Verfahren zum Aufzeichnen von Fluoreszenzereignissen.

    摘要翻译: 本发明涉及一种评估电路(1)根据激发​​荧光事件的通过光脉冲的装置的记录期间评估的一个训练有素的用于检测的光子的光电检测器(32)的电信号(A),其包括一个模拟数字转换器(2)或一个触发器 具有用于连接到检测器(32)的输出的输入,并具有用于输出数字值的输出(a)中,一个移位寄存器(3),其中所述评估电路(1)被配置成使得光强度的照明周期期间记录在不同的时间 可以独立存储在移位寄存器的各个阶段。 本发明还涉及评估电路(1)用于从荧光事件中暂时分离荧光和散射光的用途以及用于记录荧光事件的方法。

    LASER SCANNING MICROSCOPE FOR SCANNING ALONG A 3D TRAJECTORY
    10.
    发明公开
    LASER SCANNING MICROSCOPE FOR SCANNING ALONG A 3D TRAJECTORY 有权
    激光扫描显微镜中采样沿三维TRAIN

    公开(公告)号:EP2307921A2

    公开(公告)日:2011-04-13

    申请号:EP09785758.5

    申请日:2009-07-14

    申请人: Femtonics Kft.

    IPC分类号: G02B21/00 G01N21/64

    摘要: The invention relates to a laser scanning microscope (10) having: focusing means (15) having a focal plane (29) and comprising at least one optical element for focusing a laser beam (13); drive means (18) for displacing the at least one optical element of the focusing means (15) for changing the position of the focal plane (29), and deflecting means (14) for deflecting the laser beam (13). The microscope comprises a control system (32) configured to carry out the steps of: providing a periodical drive signal for the drive means (18); obtaining time dependant displacement data of the at least one optical element of the focusing means (15) in response to the periodical drive signal of the drive means (18); providing a response function (z(t)) using the time dependant displacement data, calculating a drive signal for the deflecting means (14) using the response function (z(t)) to move the focal volume (30) of the laser beam (13) along a given 3D trajectory (48) within a sample to be examined. The invention further relates to a method for carrying out such a scanning operation along a 3D trajectory (48). ˙