公开(公告)号：US20150028193A1

公开(公告)日：2015-01-29

申请号：US14458474

申请日：2014-08-13

Applicant: OLYMPUS CORPORATION

Inventor： Ken FUJINUMA ,  Shintaro TAKAHASHI

IPC: G01N21/17 ,  G02B21/00 ,  G01J1/44

CPC classification number: G01N21/17 ,  G01J1/44 ,  G01J2001/4242 ,  G01N2201/06113 ,  G01N2201/0697 ,  G02B21/002 ,  G02B21/0084 ,  G02B21/16 ,  G02B23/24

Abstract: A laser scanning type observation apparatus includes a pulsed-laser oscillation means irradiating pulsed laser to an object, a detector receiving light from the object to output a detection signal, a means detecting pulsed-laser oscillation to output a synchronous signal, a circuit delaying the synchronous signal for an optional amount of time to output a trigger signal, a means sampling the detection signal in synchronization with the trigger signal, a memory storing the sampled detection signal, a setting unit capable of setting delay time for delaying the synchronous signal in two or more stages within one period of the synchronous signal, and a decision unit determining an optimum delay stage for image formation using data on intensities of the detection signal at the respective delay stages, wherein the setting means fixes delay time for delaying the synchronous signal at delay time corresponding to the delay stage determined by the decision unit.

Abstract translation: 激光扫描型观察装置包括将物体照射脉冲激光的脉冲激光振荡装置，从物体接收光以输出检测信号的检测器，检测脉冲激光振荡以输出同步信号的装置，延迟电路 同步信号，用于输出触发信号的可选择的时间量，与触发信号同步地对检测信号进行采样的装置;存储采样检测信号的存储器;能够设置用于延迟同步信号的延迟时间的设置单元 或同步信号的一个周期内的多个阶段，以及判定单元，使用关于各个延迟级的检测信号的强度的数据，确定用于图像形成的最佳延迟级，其中，所述设定单元固定用于将同步信号延迟的延迟时间 延迟时间对应于由判定单元确定的延迟级。

公开(公告)号：US20150022806A1

公开(公告)日：2015-01-22

申请号：US14377753

申请日：2012-10-22

Applicant: Hitachi High-Technologies Corporation

Inventor： Yukihiro Shibata ,  Kei Shimura ,  Sachio Uto ,  Toshifumi Honda

IPC: G01N21/94 ,  G01N21/95 ,  G01N21/958 ,  G01N21/88

CPC classification number: G01N21/8806 ,  G01N21/8851 ,  G01N21/94 ,  G01N21/9501 ,  G01N21/956 ,  G01N21/958 ,  G01N2021/8822 ,  G01N2021/8848 ,  G01N2201/06113 ,  G01N2201/068 ,  G01N2201/0697 ,  G01N2201/12 ,  G03F7/7065

Abstract: To increase the illumination efficiency by facilitating the change of the incident angle of illumination light with a narrow illumination width according to an inspection object and enabling an illumination region to be effectively irradiated with light, provided is a defect inspection method for obliquely irradiating a sample mounted on a table that is moving continuously in one direction with illumination light, collecting scattered light from the sample obliquely irradiated with the illumination light, detecting an image of the surface of the sample formed by the scattered light, processing a signal obtained by detecting the image formed by the scattered light, and extracting a defect candidate, wherein the oblique irradiation of the light is implemented by linearly collecting light emitted from a light source, and obliquely projecting the collected light onto the surface of the sample, thereby illuminating a linear region on the surface of the sample.

Abstract translation: 为了通过根据检查对象促进具有窄照明宽度的照明光的入射角的改变来提高照明效率，并且能够有效地照射照明区域，所以提供了一种用于倾斜照射安装的样本的缺陷检查方法 在利用照明光在一个方向上连续移动的台上，从倾斜照射照明光的样本收集散射光，检测由散射光形成的样品的表面的图像，处理通过检测图像而获得的信号 通过散射光形成并提取缺陷候选物，其中光的倾斜照射是通过线性收集从光源发射的光，并将收集的光倾斜地投射到样品的表面上，从而照亮线上区域 样品的表面。

公开(公告)号：US20150021482A1

公开(公告)日：2015-01-22

申请号：US14448724

申请日：2014-07-31

Applicant: Airbus Operations GmbH

Inventor： Gerhard MÜLLER ,  Paul SUMIT ,  Andreas HELWIG ,  Volker BAUMBACH

IPC: G01N21/89 ,  G01N21/85

CPC classification number: G01N21/8914 ,  G01N15/0205 ,  G01N21/0317 ,  G01N21/09 ,  G01N21/314 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/53 ,  G01N21/643 ,  G01N21/85 ,  G01N21/94 ,  G01N33/2847 ,  G01N33/2852 ,  G01N33/2876 ,  G01N2021/3148 ,  G01N2201/0214 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/0621 ,  G01N2201/0627 ,  G01N2201/0697

Abstract: The invention relates to a contamination recording apparatus (12) for recording contaminations in a flowing hydraulic fluid (10) to be examined in aircraft (11a), which comprises a conveying device (14) for conveying the flowing hydraulic fluid (10), a light source (34) for exposing the hydraulic fluid (10) flowing in the conveying device (14) to light (46), and a detection device (36) for recording a fraction of the light (46) absorbed by the exposed hydraulic fluid (10), the light source (34) being formed in order to emit light (46) having a wavelength in the near-infrared range. The invention furthermore relates to a hydraulic system (11) equipped with such a contamination recording apparatus (12) and to an aircraft (11a), and also to a method for recording contaminations in a hydraulic fluid (10) flowing in a hydraulic system (11) of an aircraft (11a).

Abstract translation: 本发明涉及一种用于记录飞机（11a）中要检查的流动液压流体（10）中的污染物的污染物记录装置（12），其包括用于输送流动的液压流体（10）的输送装置（14） 用于将在输送装置（14）中流动的液压流体（10）暴露于光（46）的光源（34）;以及用于记录暴露的液压流体吸收的光（46）的一部分的检测装置（36） （10）中，形成光源（34）以发射具有近红外范围波长的光（46）。 本发明还涉及一种配备有这种污染记录装置（12）和飞机（11a）的液压系统（11），还涉及一种在液压系统中流动的液压流体（10）中记录污染物的方法 11）。

公开(公告)号：US20150015893A1

公开(公告)日：2015-01-15

申请号：US14378478

申请日：2013-02-12

Applicant: Hitachi, Ltd.

Inventor： Kenji Nakahira ,  Toshifumi Honda

IPC: G01N21/88 ,  G01N21/21 ,  G01N21/45 ,  G01N21/95 ,  G01N21/84

CPC classification number: G01N21/88 ,  G01N21/21 ,  G01N21/45 ,  G01N21/8422 ,  G01N21/8806 ,  G01N21/94 ,  G01N21/95 ,  G01N2201/06113 ,  G01N2201/0697 ,  G01N2201/0698 ,  G06T7/0008

Abstract: An object of the present invention is to provide an optical inspection apparatus that suppresses an influence of quantum noise and obtains superior defect detection performance even when an amount of light is small and a method thereof.In order to resolve the above problem, the present invention provides an optical inspection apparatus that includes a light source which radiates light to a sample; a light interference device which causes target light transmitted, scattered, or reflected from the sample and reference light to interfere with each other, such that strength of light after the interference becomes lower than strength of the target light; a photon counter which measures a photon number of the light after the interference by the light interference device; and a defect identifier which identifies the presence or absence of a defect, on the basis of a detected photon number obtained by the photon counter.

Abstract translation: 本发明的目的在于提供抑制量子噪声的影响的光学检查装置，即使在光量小的情况下也能够得到优异的缺陷检测性能及其方法。 为了解决上述问题，本发明提供了一种光学检查装置，其包括向样品照射光的光源; 光干涉装置，其使得从样品和参考光透射，散射或反射的目标光彼此干涉，使得干涉后的光强度变得低于目标光的强度; 光子计数器，其测量由光干涉装置干涉后的光的光子数; 以及基于由光子计数器获得的检测到的光子数来识别缺陷的存在或不存在的缺陷识别符。

公开(公告)号：US08873053B2

公开(公告)日：2014-10-28

申请号：US14003477

申请日：2012-03-07

Applicant: Shahriar Badiei ,  Magnus Berg

Inventor： Shahriar Badiei ,  Magnus Berg

IPC: G01N21/00 ,  G01N21/53 ,  G01N21/51 ,  G01N21/65 ,  G01K11/12 ,  F23N5/02 ,  F23N5/08 ,  G01N21/47 ,  G01K11/32

CPC classification number: G01N21/51 ,  F23N5/02 ,  F23N5/082 ,  G01K11/125 ,  G01K2011/322 ,  G01N21/53 ,  G01N21/65 ,  G01N2021/4709 ,  G01N2201/0697

Abstract: The present invention relates to a method for determining at least one gas condition at a location in a combustion chamber of a power plant or a combined heat and power plant by means of a laser pulse. The method comprises emitting (S1) the laser pulse into the chamber, determining (S2) a first point of time at which the laser pulse is emitted into the chamber, detecting (S3) laser light backscattered by gas molecules at the location in the chamber, determining (S4) a second point of time at which the laser light backscattered by the gas molecules is detected, determining (S5) the location based on the first point of time, the second point of time, and a pulse length of the laser pulse, and determining (S5) the at least one gas condition at the location based on at least one characteristic of the backscattered laser light detected at the second point of time. A gas measurement system and a combustion system are also presented herein.

Abstract translation: 本发明涉及一种用于通过激光脉冲在发电厂的燃烧室或组合的发电厂中确定至少一种气体状况的方法。 该方法包括：将激光脉冲发射（S1）到室中，确定（S2）激光脉冲发射到室中的第一时间点，检测（S3）在腔室中的位置处由气体分子反向散射的激光 确定（S4）检测由气体分子反向散射的激光的第二时间点，基于第一时间点，第二时间点和激光器的脉冲长度确定（S5）位置 并且基于在第二时间点检测到的反向散射激光的至少一个特性来确定（S5）该位置处的至少一个气体状况。 本文还介绍了气体测量系统和燃烧系统。

公开(公告)号：US20130208739A1

公开(公告)日：2013-08-15

申请号：US13792179

申请日：2013-03-10

Applicant: John Redvers Clowes ,  Anatoly Borisovich Grudinin ,  Ian Michael Godfrey

Inventor： John Redvers Clowes ,  Anatoly Borisovich Grudinin ,  Ian Michael Godfrey

IPC: H01S3/10

CPC classification number: H01S3/11 ,  G01N21/6458 ,  G01N2021/6419 ,  G01N2021/6441 ,  G01N2201/0697 ,  G02B21/16 ,  G02F1/353 ,  G02F1/365 ,  G02F2001/3528 ,  H01S3/10 ,  H01S3/10046 ,  H01S3/1024 ,  H01S3/108 ,  H01S3/2308

Abstract: An optical pulse source for generating optical supercontinuum pulses comprises an optical pump laser operable to generate optical pump pulses at a pump pulse repetition rate Rf; a nonlinear optical element comprising an optical fiber for generating optical supercontinuum pulses; an optical modulator operable to selectively control the launch of pump pulses into the optical fiber at a reduced, lower repetition rate Rr=Rf/N in order to generate optical supercontinuum pulses at a selectable and lower repetition rate; an optical fiber amplifier located between the optical modulator and the optical pump laser; wherein the optical supercontinuum pulses generated by the optical fiber have a supercontinuum spanning from below 450 nm to greater than 2000 nm; wherein the optical pulse source is provided with a microprocessor configured to determine when supercontinuum pulses are delivered; and wherein the optical pulse source is configured to provide an output trigger signal.

Abstract translation: 用于产生光学超连续谱脉冲的光学脉冲源包括可用于以泵浦脉冲重复率Rf产生光泵浦脉冲的光泵浦激光器; 非线性光学元件，包括用于产生光学超连续谱脉冲的光纤; 光学调制器，其可操作以选择性地以减少的较低重复率Rr = Rf / N控制泵浦脉冲发射到光纤中，以便以可选择和较低的重复率产生光学超连续谱脉冲; 位于光调制器和光泵激光器之间的光纤放大器; 其中由光纤产生的光超连续谱脉冲具有跨越450nm以上至大于2000nm的超连续谱; 其中所述光脉冲源设置有微处理器，所述微处理器被配置为确定超连续真空脉冲何时被传送; 并且其中所述光脉冲源被配置为提供输出触发信号。

公开(公告)号：US20130208738A1

公开(公告)日：2013-08-15

申请号：US13792177

申请日：2013-03-10

Applicant: John Redvers Clowes ,  Anatoly Borisovich Grudinin ,  Ian Michael Godfrey

Inventor： John Redvers Clowes ,  Anatoly Borisovich Grudinin ,  Ian Michael Godfrey

IPC: H01S3/11

CPC classification number: H01S3/11 ,  G01N21/6458 ,  G01N2021/6419 ,  G01N2021/6441 ,  G01N2201/0697 ,  G02B21/16 ,  G02F1/353 ,  G02F1/365 ,  G02F2001/3528 ,  H01S3/10 ,  H01S3/10046 ,  H01S3/1024 ,  H01S3/108 ,  H01S3/2308

Abstract: Optical pulse source for generating optical supercontinuum pulses, comprising an optical pump laser operable to generate optical pump pulses at a pump pulse repetition rate Rf; a nonlinear optical element comprising a microstructured optical fiber arranged to receive the optical pump pulses and configured to spectrally broaden the pump pulses to generate optical supercontinuum pulses; an optical modulator provided between the optical pump laser and the microstructured optical fiber and operable to selectively control the launch of pump pulses into the microstructured optical fiber at a variable, reduced repetition rate Rr=Rf/N, wherein N is a positive integer, to thereby control the repetition rate of optical supercontinuum pulses generated within the nonlinear element; and wherein the optical pulse source is configured to provide a plurality of different repetition rates and nominally identical spectral broadening for the different repetition rates.

Abstract translation: 用于产生光学超连续谱脉冲的光学脉冲源，包括可用于以泵浦脉冲重复频率Rf产生光泵浦脉冲的光泵激光器; 非线性光学元件包括微结构化光纤，布置成接收光泵浦脉冲并且被配置为频谱地扩大泵浦脉冲以产生光学超连续谱脉冲; 提供在光泵浦激光器和微结构化光纤之间的光学调制器，其可操作以选择性地控制泵浦脉冲以可变的减小的重复率Rr = Rf / N发射到微结构化光纤中，其中N为正整数， 从而控制在非线性元件内产生的光超连续谱脉冲的重复率; 并且其中所述光脉冲源被配置为为所述不同的重复率提供多个不同的重复率和名义上相同的频谱展宽。

公开(公告)号：US20130161538A1

公开(公告)日：2013-06-27

申请号：US13723922

申请日：2012-12-21

Applicant: Michael MEI ,  Ronald HOLZWARTH ,  Marc FISCHER

Inventor： Michael MEI ,  Ronald HOLZWARTH ,  Marc FISCHER

IPC: B01J19/12

CPC classification number: B01J19/121 ,  G01N21/31 ,  G01N21/6402 ,  G01N2201/0697

Abstract: The invention relates to an optical arrangement (20) and to a method of examining or processing an object (46). Here, a first laser pulse with a first central wavelength and a second laser pulse with a second central wavelength different from the first central wavelength are generated. Both pulses are superimposed in or on the object (46) such that multi-photon absorption takes place there with the involvement of at least one photon of the first laser pulse and at least one photon of the second laser pulse.

Abstract translation: 本发明涉及一种光学装置（20）以及一种检查或处理物体（46）的方法。 这里，产生具有第一中心波长的第一激光脉冲和具有与第一中心波长不同的第二中心波长的第二激光脉冲。 两个脉冲都叠加在物体（46）中或物体（46）上，使得多光子吸收发生在那里，其中涉及第一激光脉冲的至少一个光子和第二激光脉冲的至少一个光子。

公开(公告)号：US20130119276A1

公开(公告)日：2013-05-16

申请号：US13676408

申请日：2012-11-14

Applicant: Leica Microsystems CMS GmbH

Inventor： Bernd WIDZGOWSKI

IPC: G01N21/64

CPC classification number: G01N21/6408 ,  G01N21/6458 ,  G01N2201/0697 ,  G01N2201/12

Abstract: The present invention relates to a method for measuring the lifetime of an excited state in a sample, in particular a fluorescence lifetime, and to an apparatus for carrying out such a method. First, an excitation pulse is generated and a sample region is illuminated with the excitation pulse. Then, a first digital data sequence is generated which is representative of the power-time profile of the excitation pulse, and a first switching instant is determined from the first digital data sequence. Moreover, the detection light emanating from the sample region is detected by a detector, and a second digital data sequence is generated which is representative of the power-time profile of the detection light, and a second switching instant is determined from the second digital data sequence. Finally, the time difference between the first and second switching instants is calculated.

Abstract translation: 本发明涉及一种用于测量样品中的激发态的寿命的方法，特别是涉及荧光寿命的方法以及用于实施这种方法的装置。 首先，产生激发脉冲，用激发脉冲照射采样区域。 然后，产生表示激励脉冲的功率 - 时间曲线的第一数字数据序列，并且从第一数字数据序列确定第一切换时刻。 此外，由检测器检测从采样区域发出的检测光，并且生成表示检测光的功率 - 时间曲线的第二数字数据序列，并且从第二数字数据确定第二切换时刻 序列。 最后，计算第一和第二切换时刻之间的时间差。

公开(公告)号：US20120209536A1

公开(公告)日：2012-08-16

申请号：US13027259

申请日：2011-02-14

Applicant: Michael Kon Yew Hughes ,  Sebastien Tixier

Inventor： Michael Kon Yew Hughes ,  Sebastien Tixier

IPC: G06F19/00 ,  G01N21/35

CPC classification number: G01N21/3563 ,  G01N21/3559 ,  G01N21/359 ,  G01N21/86 ,  G01N21/8901 ,  G01N33/346 ,  G01N33/442 ,  G01N2021/8663 ,  G01N2021/869 ,  G01N2021/8917 ,  G01N2201/0697 ,  G01N2201/128 ,  G01N2201/13

Abstract: Radiation scattering is one of the main contributors to the uncertainty of near infrared (NIR) measurements. Enhanced absorption-measurement accuracy for NIR sensors is achieved by using a combination of NIR spectroscopy and time-of-flight techniques to select photons that are the result of a given mean free path within a moving sample target. By measuring absorption as a function of path length or by windowing signals that are attributable to excessive scattering of NIR radiation within the sample, this technique affords the calculation of more accurate and more universal calibrations. The NIR sensor employs short or ultra-short laser pulses to create NIR that is directed to the moving sample and emerging radiation is detected over time. Windowing effectively truncates non-contributing measurements.

Abstract translation: 辐射散射是近红外（NIR）测量不确定度的主要原因之一。 通过使用NIR光谱和飞行时间技术的组合来选择作为移动样本目标中给定平均自由程的结果的光子，实现NIR传感器增强的吸收测量精度。 通过测量作为路径长度的函数的吸收，或者通过对由于样品内的NIR辐射的过度散射而引起的信号的加窗信号，该技术提供了更准确和更通用的校准的计算。 NIR传感器使用短或超短激光脉冲来产生针对移动样品的NIR，并且随着时间的推移检测出新的辐射。 窗口化有效地截断了无贡献的测量。