专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5168164A Optical waveform measuring device 失效
标题翻译：光学波形测量装置
公开(公告)号：US5168164A
公开(公告)日：1992-12-01
申请号：US858861
申请日：1992-03-27
申请人： Tsuneyuki Urakami , Motohiro Suyama
发明人： Tsuneyuki Urakami , Motohiro Suyama
IPC分类号： G01J11/00
CPC分类号： G01J11/00
摘要： When sampling light and light to be measured each having a wavelength longer than an upper wavelength limit of the sensitivity of a photocathode are incident on the photocathode of a multiphoton absorption-type electron tube, light-light sampling is enabled by two-photon absorption and one-photoelectron emission. A delaying unit adjusts an incident timing of the sampling light from an optical pulse generating unit on the elctron tube in synchronism with an incident timing of the light to be measured on the electron tube. A half mirror causes the sampling light and the light to be measured to coincide on the photocathode of the electron tube. A controlling unit controls the delaying unit to sequentially shift the incident timing of the sampling light on the electron tube. Thus, the operation of a display unit can be controlled in synchronism with the incident timing of the sampling light so that a series of sampling outputs from the electron tube can be converted to the optical waveform of the light to be measured and displayed on the display unit.

2. 发明授权

US5583444A Voltage detection apparatus 失效
标题翻译：电压检测装置
公开(公告)号：US5583444A
公开(公告)日：1996-12-10
申请号：US618406
申请日：1996-03-19
申请人： Takuya Nakamura , Isuke Hirano , Shinichiro Aoshima , Hironori Takahashi , Tsuneyuki Urakami
发明人： Takuya Nakamura , Isuke Hirano , Shinichiro Aoshima , Hironori Takahashi , Tsuneyuki Urakami
IPC分类号： G01R19/00 , G01R1/07 , G01R15/16 , G01R15/22 , G01R31/28 , G01R31/312 , G01R31/302
CPC分类号： G01R1/071 , G01R31/312 , G01R15/22 , G01R15/241
摘要： This invention has as its object to provide a voltage measurement apparatus which has a compact probe unit, and which can perform a measurement in a non-contact manner. The voltage measurement apparatus includes detection means for detecting an electric field generated in a space by a voltage applied to the surface of a device to be measured, light-emitting means for modulating output light by superposing a detected signal obtained from the detection means on a bias current which is supplied to inductively radiate the output light, a constant current source for supplying the bias current to the light-emitting means, extraction means for extracting a signal component of the output light from the light-emitting means, and light-transmission means for guiding the output light from the light-emitting means to the extraction means, and measures the applied voltage to the surface of the device to be measured by bringing the detection means close to the device to be measured in a non-contact manner.
摘要翻译：本发明的目的是提供一种电压测量装置，其具有紧凑的探针单元，并且可以以非接触方式进行测量。电压测量装置包括检测装置，用于通过施加到被测量装置的表面的电压来检测在空间中产生的电场;发光装置，用于通过将从检测装置获得的检测信号叠加在一个提供用于感应放射输出光的偏置电流，用于向发光装置提供偏置电流的恒流源，用于从发光装置提取输出光的信号分量的提取装置，以及光传输用于将来自发光装置的输出光引导到提取装置的装置，并且通过以非接触的方式使检测装置靠近被测量装置来测量施加到要测量装置的表面的电压。

3. 发明授权

US5420686A Polarization interferometer optical voltage detector utilizing movement of interference fringe 失效
标题翻译：利用干涉条纹移动的偏振干涉仪光电压检测器
公开(公告)号：US5420686A
公开(公告)日：1995-05-30
申请号：US200568
申请日：1994-02-22
申请人： Hironori Takahashi , Tsuneyuki Urakami , Shinichiro Aoshima
发明人： Hironori Takahashi , Tsuneyuki Urakami , Shinichiro Aoshima
IPC分类号： G01R1/07 , G01R15/24 , G01B9/02
CPC分类号： G01R15/242 , G01R1/071
摘要： Polarized light is input to an optical modulator typically consisting of an electrooptic crystal. The polarization state of the input light is changed in accordance with a voltage being applied to the optical modulator. Receiving the light output from the optical modulator, a polarization interferometer produces an interference fringe on the input surface of a photodetector such as a streak camera and a CCD line sensor. Based on an output signal of the photodetector, an analyzing device calculates a pitch and a movement distance of the interference fringe to determine the voltage being applied to the optical modulator.
摘要翻译：偏振光被输入到通常由电光晶体组成的光学调制器。输入光的偏振状态根据施加于光调制器的电压而变化。接收来自光调制器的光输出，偏振干涉仪在诸如条纹照相机和CCD线传感器的光电检测器的输入表面上产生干涉条纹。基于光检测器的输出信号，分析装置计算干涉条纹的间距和移动距离，以确定施加到光调制器的电压。

4. 发明授权

US5307199A Optical apparatus 失效
标题翻译：光学仪器
公开(公告)号：US5307199A
公开(公告)日：1994-04-26
申请号：US735792
申请日：1991-07-25
申请人： Tsuneyuki Urakami , Shinichiro Aoshima , Yutaka Tsuchiya
发明人： Tsuneyuki Urakami , Shinichiro Aoshima , Yutaka Tsuchiya
IPC分类号： G02F1/29 , G02F1/01 , G02F1/03
CPC分类号： G02F1/293
摘要： The optical apparatus includes first and second deflection members, a mask, a pumping light source, and a controller. The first and second deflection members are formed of nonlinear optical material whose refractive index is changed upon light radiation. The mask is arranged on an optical path extending from a front side of the first deflection member to a rear side of a second deflection member. The mask has a predetermined transmission pattern. The pumping light source radiates first and second beams on predetermined regions of the first and second deflection members. This changes the refractive indices of the predetermined regions to bend the optical path. The controller variably controls the intensity of the first and second beams.
摘要翻译：光学装置包括第一和第二偏转构件，掩模，泵浦光源和控制器。第一偏转构件和第二偏转构件由折射率在光辐射下变化的非线性光学材料形成。掩模布置在从第一偏转构件的前侧延伸到第二偏转构件的后侧的光路上。掩模具有预定的传输图案。泵浦光源在第一和第二偏转构件的预定区域上辐射第一和第二光束。这改变了预定区域的折射率以弯曲光路。控制器可变地控制第一和第二光束的强度。

5. 发明授权

US5640247A Method for measuring internal information in a scattering medium and apparatus for the same 失效
标题翻译：用于测量散射介质中的内部信息的方法及其装置
公开(公告)号：US5640247A
公开(公告)日：1997-06-17
申请号：US353202
申请日：1994-12-01
申请人： Yutaka Tsuchiya , Kazuyoshi Ohta , Tsuneyuki Urakami
发明人： Yutaka Tsuchiya , Kazuyoshi Ohta , Tsuneyuki Urakami
IPC分类号： G01N33/72 , A61B5/145 , A61B5/1455 , G01J1/00 , G01N21/17 , G01N21/49 , G01N21/47 , A61B5/00 , A61B6/00 , G01N21/00
CPC分类号： G01N21/49
摘要： Light having a predetermined wavelength and various incident angle components to be incident on a surface of a scattering medium to generate an equivalent point light source or a group of equivalent point light sources near or on the surface of the scattering medium, and light diffused during propagation in the scattering medium is detected outside, and considering isotropic light from the equivalent light sources is immediately diffused, the optically detected signal is processed to detect a predetermined parameter which is primary information and this predetermined parameter is processed to measure internal information which is secondary information in the scattering medium with high accuracy.
摘要翻译：具有预定波长的光和入射到散射介质的表面上的各种入射角分量的光，以在散射介质的表面附近或表面上产生等效点光源或一组等效点光源，以及在传播期间漫射的光在散射介质外部检测到，考虑到来自等效光源的各向同性光立即扩散，对光检测信号进行处理，以检测作为主要信息的预定参数，并且处理该预定参数以测量作为次要信息的内部信息在散射介质中具有高精度。

6. 发明授权

US5491329A Photodetecting apparatus having intensity tuneable light irradiating unit 失效
标题翻译：具有强度可调光照射单元的光检测装置
公开(公告)号：US5491329A
公开(公告)日：1996-02-13
申请号：US353358
申请日：1994-12-02
申请人： Tsuneyuki Urakami , Yutaka Tsuchiya
发明人： Tsuneyuki Urakami , Yutaka Tsuchiya
IPC分类号： G01J1/00 , A61B5/00 , G01J1/42 , G01J1/44 , G01J11/00 , G01N21/17 , G01N21/49 , G01J1/32
CPC分类号： G01N21/49 , A61B5/0059
摘要： Light the intensity of which is modulated to the initial intensity by a modulating signal having an ac component with a predetermined frequency and which is from the intensity tuneable light irradiating unit irradiates the scattering and absorption medium which is an object to be measured. The modulated light incident on the scattering and absorption medium propagates in the scattering and absorption medium, emerges therefrom and is incident to the photodetecting unit, and the photodetecting unit converts the incident light into an electric signal corresponding to the intensity of the incident light, and thereafter, outputs the electric signal as an optically detected signal. The feedback unit extracts the ac component from the input optically detected signal, and the intensity of the ac electric signal and the adjusting value are compared and the variation of the quantity of generating light is sent to the intensity tuneable light irradiating unit. Then, the phase difference detection is performed as the gain of the photodetecting means is fixed and the intensity of the ac component having a modulation frequency emitted from the photodetecting means is maintained so as to substantially match with the preset adjusting value.
摘要翻译：通过具有预定频率的交流分量并且来自强度可调光照射单元的调制信号将其强度调制到初始强度的光照射作为待测对象的散射和吸收介质。入射在散射和吸收介质上的调制光在散射和吸收介质中传播，从中出射并入射到光电检测单元，光电检测单元将入射光转换成与入射光强度对应的电信号，此后，作为光检测信号输出电信号。反馈单元从输入的光检测信号中提取ac分量，并且比较ac电信号和调整值的强度，并将发光量的变化发送到强度可调光照射单元。然后，随着光检测装置的增益被固定，并且保持从光检测装置发射的调制频率的交流分量的强度，使其与预设的调整值基本一致，进行相位差检测。

7. 发明授权

US5274651A Optical modulator with nonlinear medium disposed interiorly of laser resonator 失效
标题翻译：配有激光谐振器内部的非线性介质的光学调制器
公开(公告)号：US5274651A
公开(公告)日：1993-12-28
申请号：US826061
申请日：1992-01-27
申请人： Tsuneyuki Urakami
发明人： Tsuneyuki Urakami
IPC分类号： G02B5/28 , G02F1/35 , G02F1/355 , H01S3/08 , H01S3/10 , H01S3/108 , H01S3/109 , H01S5/04 , H01S5/14
CPC分类号： H01S3/109 , H01S3/108 , H01S5/041 , H01S5/14
摘要： An optical modulator which can perform optical modulation without using pulses having a high level peak power, include a medium having a nonlinear refractive index disposed interiorly of a laser resonator which includes an input mirror, an output mirror, a laser medium disposed between the input and output mirrors, and an excitation device for exciting the laser medium so that a laser pulse is oscillated by the laser medium. The optical modulator can operate in both the self phase modulation mode and the induced-phase modulation mode. To operate the optical modulator in the self phase modulation mode, the laser pulses passing through the medium are self phase modulated. To operate the optical modulator in the induced-phase modulation mode, a light emitting device is provided which emits a light to be modulated. The light is incident on the input mirror and passed through the medium so that the light is cross phase modulated by the laser serving as a pumping light.

8. 发明授权

US5220579A Pulse laser 失效
标题翻译：脉冲激光
公开(公告)号：US5220579A
公开(公告)日：1993-06-15
申请号：US735647
申请日：1991-07-25
申请人： Tsuneyuki Urakami , Shinichiro Aoshima
发明人： Tsuneyuki Urakami , Shinichiro Aoshima
IPC分类号： H01S3/0915 , H01S3/106 , H01S3/108 , H01S3/11
CPC分类号： H01S3/117 , H01S3/108 , H01S3/0805
摘要： A pulse laser has a laser resonator, a laser medium in the laser resonator, and a deflecting device. The laser medium emits an emission light. The deflecting device switches an optical path of the emission light to output the emission light as a laser pulse. The deflecting device includes a deflecting member and a pumping device. The deflecting member is arranged in the optical path of the emission light. The deflection member has a refractive index which changes based on a pumping light incident thereon. The pumping device radiates the pumping light on a predetermined region of the deflection member and varies the refractive index of the predetermined region to switch the optical path of the emission light.

9. 发明授权

US4994663A Light intensity correlating apparatus 失效
标题翻译：光强度相关装置
公开(公告)号：US4994663A
公开(公告)日：1991-02-19
申请号：US355608
申请日：1989-05-23
申请人： Shinichiro Aoshima , Tsuneyuki Urakami , Yutaka Tsuchiya
发明人： Shinichiro Aoshima , Tsuneyuki Urakami , Yutaka Tsuchiya
IPC分类号： G02F3/00 , G01J1/00 , G01J11/00 , G06E3/00
CPC分类号： G01J11/00 , G06E3/005
摘要： An apparatus for measuring an autocorrelation wavaeform of intensity of input light comprises a beam splitting means for dividing the input light into two light beams, a photoelectric converter for converting one of the divided beams into an electrical signal, an optical modulating means for modulating the other light beam in accordance with the electrical signal, a delay means for varying a relative delay time between arrival times to the optical modulating means of the light beam and the electrical signal, and a photodetector having a response speed faster than that of the delay time variation for detecting output light from the optical modulating means.

10. 发明授权

US5811805A Charged particle guide apparatus and image viewing apparatus for charged particle microscope using the same 失效
标题翻译：带电粒子引导装置和使用其的带电粒子显微镜的图像观察装置
公开(公告)号：US5811805A
公开(公告)日：1998-09-22
申请号：US702183
申请日：1996-08-23
申请人： Nobuyuki Osakabe , Junji Endo , Tetsuji Kodama , Tsuneyuki Urakami , Hiroshi Tsuchiya , Shinji Ohsuka
发明人： Nobuyuki Osakabe , Junji Endo , Tetsuji Kodama , Tsuneyuki Urakami , Hiroshi Tsuchiya , Shinji Ohsuka
IPC分类号： H01J37/22 , H01J37/244 , H01J37/26
CPC分类号： H01J37/22 , H01J37/244
摘要： An electron-microscope image viewing apparatus capable of measuring of a moving speed or a vibration frequency of an atomic structure, a magnetic structure, an electric structure or the like of a specimen even when the structure changes at a high rate. The apparatus includes a charged particle source for emitting charged particles, an illuminating electron lens system for illuminating a specimen with a beam of the charged particles, an image magnifying/projecting lens system for magnifying an image of the specimen formed by charged particles scattered upon transmission through the specimen and projecting the magnified image onto an image forming plane, at least one charged particle extracting means provided on the image forming plane of the image magnifying/projecting lens system for taking out the charged particles from a predetermined portion of the charged particle beam projected onto the image forming plane, at least one charged particle detector for detecting the charged particles taken out through the charged particle extracting means, and a signal processing means for processing a signal outputted from the charged particle detector.
摘要翻译：即使当结构以高速率变化时，也可以测量试样的原子结构，磁性结构，电结构等的移动速度或振动频率的电子显微镜图像观察装置。该装置包括用于发射带电粒子的带电粒子源，用于用带电粒子束照射样本的照明电子透镜系统，用于放大由透射时散射的带电粒子形成的样本的图像的图像放大/投影透镜系统通过样本并将放大图像投影到图像形成平面上，至少一个带电粒子提取装置，设置在图像放大/投影透镜系统的图像形成平面上，用于从带电粒子束的预定部分中取出带电粒子投影到图像形成平面上的至少一个带电粒子检测器，用于检测通过带电粒子提取装置取出的带电粒子;以及信号处理装置，用于处理从带电粒子检测器输出的信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式