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    • 62. 发明授权
    • Fiber-coupled, high-speed, angled-dual-axis optical coherence scanning microscopes
    • 光纤耦合,高速,角度双轴光学相干扫描显微镜
    • US06710316B2
    • 2004-03-23
    • US10189297
    • 2002-07-01
    • Michael J. MandellaMark H. GarrettGordon S. Kino
    • Michael J. MandellaMark H. GarrettGordon S. Kino
    • G02B704
    • G02B21/002G01B9/02003G01B9/02022G01B9/02058G01B9/0209G01B2290/45G01B2290/65G01B2290/70
    • This invention provides an angled-dual-axis optical coherence scanning microscope comprising a fiber-coupled, high-speed angled-dual-axis confocal scanning head and a vertical scanning unit. The angled-dual-axis confocal scanning head is configured such that an illumination beam and an observation beam intersect optimally at an angle &thgr; within an object and the scanning is achieved by pivoting the illumination and observation beams jointly using a high-speed scanning element. The vertical scanning unit causes the angled-dual-axis confocal scanning head to move towards or away from the object, thereby yielding a vertical cross-section scan of the object, while keeping the optical path lengths of the illumination and observation beams unchanged. By incorporating MEMS scanning mirrors and fiber-optic components, the angled-dual-axis optical coherence scanning microscope of the present invention can be miniaturized to provide a particularly powerful tool for in vivo medical imaging applications.
    • 本发明提供一种角度双轴光学相干扫描显微镜,其包括光纤耦合的高速双角双轴共焦扫描头和垂直扫描单元。 角度双轴共焦扫描头被配置为使得照明光束和观察光束以物体内的角度θ最佳地相交,并且通过使用高速扫描元件联合地旋转照明和观察光束来实现扫描。 垂直扫描单元使成角度的双轴共焦扫描头朝向或远离物体移动,从而在保持照明和观察光束的光程长度不变的同时产生物体的垂直横截面扫描。 通过并入MEMS扫描镜和光纤部件,本发明的角度双轴光学相干扫描显微镜可以被小型化,为体内医学成像应用提供特别强大的工具。
    • 66. 发明授权
    • Fiber optic apparatus and method for spectrum analysis and filtering
    • 用于频谱分析和滤波的光纤设备和方法
    • US4781425A
    • 1988-11-01
    • US830457
    • 1966-02-18
    • William P. RiskGordon S. Kino
    • William P. RiskGordon S. Kino
    • G01J3/02G01J3/12G01J3/447G01J9/00G02B6/10G02B6/34G02F1/01G02F1/11
    • G02B6/29302G01J3/447G01J9/00G02B6/105G02F1/0134G01J3/1256G02B6/2713G02B6/274G02B6/2766
    • An acousto-optic frequency shifter having a long interaction region is used as an optical analyzer. A variable frequency signal generator is used to drive an acoustic transducer to launch an acoustic wave in contact with an optical fiber. The acoustic frequency is varied over a known range to generate acoustic waves having known wavelengths. An optical signal having an unknown optical wavelength is introduced into one end of the optical fiber in a first polarization mode. The effect of the acoustic wave on the optical signal is to cause coupling of the optical signal from the first polarization mode to a second orthogonal polarization mode. The amount of the coupling is dependent upon the phase-matching between the acoustic wavelength and the optical beat length. The coupling between the polarization modes is maximum when the acoustic wavelength is equal to the optical beat length. The intensity of the optical signal coupled to the second polarization mode can be measured to determine the optical wavelength corresponding to the acoustic wavelength when the maximum intensity occurs.
    • 使用具有长相互作用区域的声光移频器作为光学分析器。 可变频率信号发生器用于驱动声换能器以发射与光纤接触的声波。 声频在已知范围内变化以产生具有已知波长的声波。 具有未知光波长的光信号以第一偏振模式被引入光纤的一端。 声波对光信号的影响是使来自第一偏振模式的光信号耦合到第二正交偏振模式。 耦合的量取决于声波长和光学拍子长度之间的相位匹配。 当声波长等于光拍长度时,极化模式之间的耦合是最大的。 可以测量耦合到第二偏振模式的光信号的强度,以确定当发生最大强度时对应于声波长的光波长。
    • 67. 发明授权
    • Fiber optic sensor for detecting very small displacements of a surface
    • 用于检测表面极小位移的光纤传感器
    • US4652744A
    • 1987-03-24
    • US828148
    • 1986-02-07
    • John E. BowersGordon S. Kino
    • John E. BowersGordon S. Kino
    • G01D5/26G01H9/00H01J5/16
    • G01H9/006G01D5/268
    • A light source (10) coupled to a first fiber optic waveguide (14) which is coupled by a first directional coupler (22) and a second directional coupler (24) to a second waveguide (20). The first waveguide (14) has a phase modulator (60), a delay loop (62) and a polarization controller (68) therein to cause a differential delay time T on counterpropagating coherent light waves phase modulated at a frequency 1.sub.M. The first directional coupler (22) has one part connected to a photodetector (28) and the second directional coupler (24) has a probe (20D) coupled to the first fiber (14) and the second fiber (20). The probe directs light toward a surface (18) whereupon the counterpropagating waves are shifted in phase by an amount proportional to the amplitude of displacement of the surface 18.
    • 耦合到由第一定向耦合器(22)和第二定向耦合器(24)耦合到第二波导管(20)的第一光纤波导(14)的光源(10)。 第一波导(14)在其中具有相位调制器(60),延迟环(62)和偏振控制器(68),以在以1M频率相位调制的反向传播相干光波上产生差分延迟时间T. 第一定向耦合器(22)具有连接到光电检测器(28)的一部分,并且第二定向耦合器(24)具有耦合到第一光纤(14)和第二光纤(20)的探针(20D)。 探针将光朝着表面(18)引导,于是反向传播波相移一个与表面18的位移幅度成比例的量。
    • 68. 发明授权
    • Reflection acoustic microscope for precision differential phase imaging
    • 反射声学显微镜用于精密差分相位成像
    • US4503708A
    • 1985-03-12
    • US464394
    • 1983-02-07
    • Gordon S. KinoButrus T. Khuri-YakubSimon D. BennettKenneth K. Liang
    • Gordon S. KinoButrus T. Khuri-YakubSimon D. BennettKenneth K. Liang
    • G01N29/06G01S15/89G01N29/00
    • G01N29/0681G01S15/8906
    • An acoustic microscope comprising a transducer for transmitting acoustic signals towards the surface to be studied, and means for receiving at least one reflected signal from the surface; in many embodiments of the invention, signals are received from two separate points. The signals received are passed to a synchronous phase detection system for analysis. The signals may be received at the same phase detector input and separated according to their expected time of receipt relative to their time of transmission, or they may be received at separated points on the transducer related to their separated points of transmission. The separated return signals are compared on the basis of phase (and in certain embodiments, magnitude) differential either to each other or to an internally generated reference signal to analyze the surface characteristics of the material.
    • 一种声学显微镜,包括用于向待研究的表面传送声学信号的换能器,以及用于从所述表面接收至少一个反射信号的装置; 在本发明的许多实施例中,从两个分开的点接收信号。 接收到的信号被传递到同步相位检测系统进行分析。 信号可以在相同的相位检测器输入处接收,并根据其相对于其传输时间的预期接收时间分离,或者它们可以在与其分离的传输点相关的传感器上的分离点处被接收。 基于相位(和在某些实施例中的幅度)差分彼此或与内部产生的参考信号对分离的返回信号进行比较,以分析材料的表面特性。
    • 69. 发明授权
    • Electronically focused imaging system and method
    • 电子聚焦成像系统及方法
    • US3953825A
    • 1976-04-27
    • US487979
    • 1974-07-12
    • Gordon S. KinoCalvin F. QuateJames F. Havlice
    • Gordon S. KinoCalvin F. QuateJames F. Havlice
    • G01S7/52A61B8/00G01S7/531G01S15/89H01L41/00G01V1/00H04B13/00H04R15/00
    • G01S15/8925G01S7/531
    • An improved electronically focused imaging system for focusing transmitted acoustic waves into a focal line and for scanning the focal line for waves either reflected or transmitted from an object of interest. The system includes N transducer elements in a transmitter array and N transducer elements in a receiver array. These 2N elements can resolve N.sup.2 locations on the object of interest. In one embodiment the transmitter array is pulsed through a delay line that is activated by two, independent, frequency varying chirp signals. In this embodiment the receiver array is focused to scan the focal line and to develop a rectangular raster so that the output of the system is viewable on an oscilloscope or a television screen. In another embodiment the transmitter array is pulsed by a delay line activated by one chirp signal and a 45.degree. raster is developed.
    • 一种改进的电子聚焦成像系统,用于将发射的声波聚焦到焦线中并用于扫描用于从感兴趣对象反射或发射的波的焦线。 该系统包括发射机阵列中的N个换能器元件和接收器阵列中的N个换能器元件。 这2N个元素可以解析感兴趣对象上的N2个位置。 在一个实施例中,发射器阵列通过由两个独立的频率变化啁啾信号激活的延迟线脉冲。 在该实施例中,接收器阵列被聚焦以扫描焦线并开发矩形光栅,使得系统的输出可在示波器或电视屏幕上观看。 在另一个实施例中,发射器阵列被由一个啁啾信号激活的延迟线脉冲,并且45°光栅被开发。