公开(公告)号：US08314405B2

公开(公告)日：2012-11-20

申请号：US12252313

申请日：2008-10-15

申请人： Dug Young Kim ,  Sucbei Moon ,  Dongsoo Lee

发明人： Dug Young Kim ,  Sucbei Moon ,  Dongsoo Lee

IPC分类号： G01T1/10 ,  G01N21/61

CPC分类号： G01N21/6408

摘要： Disclosed is an apparatus for measuring a fluorescence lifetime. The apparatus for measuring the fluorescence lifetime comprises an excitation light generator that generates excitation light to be irradiated on a sample including fluorescence molecules; a fluorescence photon collecting unit that collects a plurality of fluorescence photons generated by irradiating the excitation light on the sample; a light sensor that converts the collected fluorescence photons into a fluorescence electrical signal; and a fluorescence lifetime signal processor that determines the fluorescence lifetime by calculating the average time of the fluorescence electrical signal with respect to a predetermined apparatus delay time. According to the above configuration, the present invention can accurately and precisely measure a fluorescence lifetime in a short measurement time by easy calculation.

摘要翻译： 公开了一种用于测量荧光寿命的装置。 用于测量荧光寿命的装置包括激发光发生器，其产生要照射在包含荧光分子的样品上的激发光; 荧光光子收集单元，其收集通过将样品上的激发光照射而产生的多个荧光光子; 将所收集的荧光光子转换成荧光电信号的光传感器; 以及荧光寿命信号处理器，其通过相对于预定的设备延迟时间计算荧光电信号的平均时间来确定荧光寿命。 根据上述结构，本发明能够通过容易的计算在短的测定时间内精确而准确地测定荧光寿命。

公开(公告)号：US08098371B2

公开(公告)日：2012-01-17

申请号：US12350786

申请日：2009-01-08

申请人： Dug Young Kim ,  In Hee Shin ,  Dong Ju Lee

发明人： Dug Young Kim ,  In Hee Shin ,  Dong Ju Lee

IPC分类号： G01N21/00

CPC分类号： G01M11/37 ,  G01L5/0047

摘要： The present invention relates to an apparatus for measuring a residual stress of an optical fiber. More particularly, the present invention relates to an apparatus for measuring residual stress of an optical fiber which is provided with a variable polarizer of which rotation is unnecessary instead of a rotary analyzer to measure the residual stress in high resolution and at high speed.There is provided an apparatus for measuring a residual stress of an optical fiber including a light generation unit that generates light; a lens unit that converts the generated light into collimated light; a polarization unit including variable polarization devices that divide the collimated light into two perpendicularly polarized light beams and control phase retardation of the polarized light beams by means of an electrical signal; a measurement unit that allows the divided light beams of two polarization states to penetrate an optical fiber to be measured; and a light detection unit that detects the polarization states of the light beams penetrating the optical fiber.

摘要翻译： 本发明涉及一种用于测量光纤的残余应力的装置。 更具体地，本发明涉及一种用于测量光纤的残余应力的装置，该装置设置有不需要旋转的可变偏振器，而不是旋转分析器来以高分辨率和高速度测量残余应力。 提供了一种用于测量包括产生光的光产生单元的光纤的残余应力的装置; 将所生成的光转换为准直光的透镜单元; 偏振单元，其包括将准直光分成两个垂直偏振光束并通过电信号控制偏振光束的相位延迟的可变偏振器件; 测量单元，其允许具有两个偏振态的分束光束穿透待测量的光纤; 以及光检测单元，其检测穿透光纤的光束的偏振状态。

公开(公告)号：US08064064B2

公开(公告)日：2011-11-22

申请号：US12370581

申请日：2009-02-12

申请人： Dug Young Kim ,  Seung Bum Cho

发明人： Dug Young Kim ,  Seung Bum Cho

IPC分类号： G01J3/45

CPC分类号： G01N21/65 ,  G01J3/44 ,  G01N2021/653

摘要： Disclosed is an apparatus and method for obtaining images using coherent anti-stokes Raman scattering. The apparatus for obtaining images using coherent anti-stokes Raman scattering according to the present invention comprises: a pump light source and a stokes light source that irradiate pump light and stokes light on a sample to generate anti-stokes light having anti-stokes frequency; a reference light source that generates reference light; and an image obtaining unit that obtains the images of the sample using a change in phase of the reference light due to a change in the refractive index of the sample in the vicinity of the anti-stokes frequency. Thereby, the present invention can provide the apparatus for obtaining images using coherent anti-stokes Raman scattering that is not affected by a non-resonant background signal phenomenon, strong resistance against noise even in a weak signal, and has excellent sensitivity and resolution.

摘要翻译： 公开了一种使用相干反斯托克斯拉曼散射获得图像的装置和方法。 根据本发明的使用相干反斯托克斯拉曼散射获得图像的装置包括：泵浦光源和斯托克斯光源，其照射泵浦光并将光束照射在样品上以产生具有反斯托克斯频率的反斯托克斯光; 产生参考光的参考光源; 以及图像获取单元，其由于在反斯托克斯频率附近的样品的折射率的变化而使用参考光的相位变化来获得样本的图像。 因此，本发明可以提供使用不受非谐振背景信号现象影响的相干反斯托克斯拉曼散射获得图像的装置，即使在弱信号中也具有很强的抵抗噪声，并且具有优异的灵敏度和分辨率。

公开(公告)号：US07679038B2

公开(公告)日：2010-03-16

申请号：US12350809

申请日：2009-01-08

申请人： Dug Young Kim ,  Ji Yong Lee

发明人： Dug Young Kim ,  Ji Yong Lee

IPC分类号： G02B7/04

CPC分类号： G02B21/0092 ,  G02B21/14

摘要： An optical phase microscope using rotating-¼ wavelength plate with pinhole in the center position and Fourier transformed lens is provided. The optical phase microscope comprises an optical image generator that acquires images for a specimen to be observed, an object plane onto which light beams of the images acquired from the optical image generator are projected, a first transform lens that performs primary Fourier transformation on the light beams passing through the object plane, a ¼ wavelength plate with pinhole at the center position that is positioned to be spaced by a focal distance of the first transform lens from the first transform lens, a secondary transform lens that performs secondary Fourier transformation on the light beams passing through the ¼ wavelength plate, and a phase image generator including a photo detector on which the images of the light beams subjected to the secondary Fourier transformation is focused.

摘要翻译： 提供了一种光学相位显微镜，其中心位置具有针孔旋转1/4波长板和傅里叶变换透镜。 光学相位显微镜包括光学图像生成器，其获取要观察的样本的图像，投射从光学图像生成器获取的图像的光束投射到的物平面;对光进行主傅立叶变换的第一变换透镜 通过物平面的光束，在中心位置处的针孔的1/4波片，其被定位成与第一变换透镜的焦距相隔离第一变换透镜;二次变换透镜，对光进行二次傅里叶变换 通过1/4波长板的光束，以及包括光电检测器的相位图像发生器，其上聚焦进行二次傅里叶变换的光束的图像。

公开(公告)号：US07369249B2

公开(公告)日：2008-05-06

申请号：US11387170

申请日：2006-03-23

申请人： Dug Young Kim ,  Tae Jung Ahn

发明人： Dug Young Kim ,  Tae Jung Ahn

IPC分类号： G01B9/02 ,  G01N21/00

CPC分类号： G01M11/3172

摘要： Disclosed herein is an apparatus for measuring the differential mode delay of multimode optical fiber. The apparatus includes a tunable laser source, an interferometer, a data collecting device, and a computer. The tunable laser source outputs light, frequencies of which vary linearly. The interferometer generates multimode light and single mode light by separating light, which is output from the tunable laser source, transmitting the multimode light and the single mode light to the multimode optical fiber, which is a measurement target, and a single mode path, which is a reference, and generating a beating signal by causing the multimode light and the single mode light to interfere with each other. The data collecting device collects the beating signal from the interferometer. The computer converts the frequency components of the beating signal into components in a time domain, and calculating the mode delay of the multimode light.

摘要翻译： 本文公开了一种用于测量多模光纤的差模延迟的装置。 该装置包括可调谐激光源，干涉仪，数据采集装置和计算机。 可调激光源输出光，其频率线性变化。 干涉仪通过从可调激光源输出的分离光产生多模光和单模光，将多模光和单模光传输到作为测量对象的多模光纤和单模路径，其中 是参考，并且通过使多模光和单模光彼此干扰而产生跳动信号。 数据收集装置从干涉仪中收集跳动信号。 计算机将拍频信号的频率分量转换为时域中的分量，并计算多模光的模式延迟。