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    • 51. 发明授权
    • Beam irradiation apparatus
    • 光束照射装置
    • US07773281B2
    • 2010-08-10
    • US12496334
    • 2009-07-01
    • Yoshiaki MaenoAtsushi Yamaguchi
    • Yoshiaki MaenoAtsushi Yamaguchi
    • G02B26/08
    • G02B26/085G02B26/0875G02B26/105
    • A beam irradiation apparatus includes: an optical element which changes a travel direction of a laser beam by being rotated in a predetermined direction; an actuator which rotates the optical element in the direction; a refractive element which is disposed in the actuator and rotates in association with rotation of the optical element; a servo beam source which emits a servo beam to the refractive element; a photodetector which receives the servo beam refracted by the refractive element and outputs a signal according to a position where the servo beam is received; and a power adjustment circuit which adjusts emission power of the servo beam source. The power adjustment circuit adjusts the emission power so that a reception amount of the servo beam in the photodetector becomes constant based on an output signal from the photodetector.
    • 光束照射装置包括:光学元件,其通过沿预定方向旋转来改变激光束的行进方向; 沿该方向旋转光学元件的致动器; 折射元件,设置在致动器中并与光学元件的旋转相关联地旋转; 将伺服光束发射到折射元件的伺服光束源; 接收由折射元件折射的伺服光束并根据接收伺服光束的位置输出信号的光电检测器; 以及调整伺服光束源的发射功率的功率调节电路。 功率调整电路基于来自光电检测器的输出信号来调整发光功率,使得光电检测器中的伺服光束的接收量变得恒定。
    • 53. 发明申请
    • BEAM IRRADIATION DEVICE AND LASER RADAR SYSTEM
    • 光束辐射装置和激光雷达系统
    • US20100188648A1
    • 2010-07-29
    • US12695497
    • 2010-01-28
    • Yoshiaki MaenoAtsushi YamaguchiMitsutaka Yamaguchi
    • Yoshiaki MaenoAtsushi YamaguchiMitsutaka Yamaguchi
    • G01C3/08G01J1/20
    • G01J1/4257G01S7/4811G01S7/4817G01S17/026G01S17/10G01S17/42G01S17/936
    • A beam irradiation device includes: a laser light source for emitting laser light; an actuator which scans a targeted area with the laser light; a servo optical system which changes a propagating direction of servo light in response to driving of the actuator; a photodetector which receives the servo light to output a signal depending on a light receiving position of the servo light; an actuator controlling section which controls the actuator based on the signal to be outputted from the photodetector; and a laser controlling section which controls the laser light source based on the signal to be outputted from the photodetector. The laser controlling section controls the laser light source to emit the laser light in a pulse manner at a timing when the light receiving position of the servo light coincides with a predetermined targeted position.
    • 光束照射装置包括:用于发射激光的激光源; 用激光扫描目标区域的致动器; 伺服光学系统,其响应于致动器的驱动而改变伺服光的传播方向; 接收所述伺服光以根据所述伺服光的光接收位置输出信号的光电检测器; 致动器控制部,其基于从所述光检测器输出的信号来控制所述致动器; 以及激光控制部,其基于从光电检测器输出的信号来控制激光光源。 在伺服光的光接收位置与预定目标位置一致的时刻,激光控制部分控制激光光源以脉冲方式发射激光。
    • 56. 发明申请
    • BEAM IRRADIATION APPARATUS
    • 光束辐射装置
    • US20100014139A1
    • 2010-01-21
    • US12500407
    • 2009-07-09
    • Yoshiaki MaenoAtsushi Yamaguchi
    • Yoshiaki MaenoAtsushi Yamaguchi
    • G02B26/10
    • G02B26/101G01S7/4816G01S7/4817G01S17/026G01S17/42
    • A beam irradiation apparatus includes: an actuator which scans a target region with a laser beam; a photodetector which receives a servo beam and outputs a signal according to a beam reception position; an optical unit which makes the servo beam displaced on the photodetector in association with driving of the actuator; and a position signal generation circuit that generates a signal according to the reception position of the servo beam based on an output signal from the photodetector. The position signal generation circuit has a signal removal circuit that removes a disturbance signal generated when the laser beam is incident on the photodetector, from an output signal of the photodetector.
    • 光束照射装置包括:用激光束扫描目标区域的致动器; 接收伺服光束并根据光束接收位置输出信号的光电检测器; 光学单元,其使伺服光束与致动器的驱动相关联地在光电检测器上移位; 以及位置信号生成电路,其基于来自所述光检测器的输出信号,根据所述伺服光束的接收位置生成信号。 位置信号发生电路具有信号去除电路,该信号去除电路根据光检测器的输出信号去除激光束入射到光检测器上时产生的干扰信号。
    • 58. 发明授权
    • Imaging apparatus with autofocus function, imaging method, storage medium, and integrated circuit
    • 具有自动对焦功能的成像设备,成像方法,存储介质和集成电路
    • US07619189B2
    • 2009-11-17
    • US12326511
    • 2008-12-02
    • Atsushi Yamaguchi
    • Atsushi Yamaguchi
    • G02B27/40
    • G02B27/145G02B7/38G02B27/1013G02B27/144G02B27/16H04N5/23212H04N9/045H04N9/09
    • An imaging apparatus executes AF control without affecting a video signal and prevents video signal qualities in an in-focus state from decreasing. An optical path separation unit 2 separates light from a subject into first and second light beams. A first imaging unit 3 generates a first signal using the first beam. A second imaging unit 7 generates a second signal using the second beam. A control unit 14 generates a contrast evaluation value based on the second signal while changing an optical-path length of the second light beam by back-or-fourth moving the AF-purpose imaging unit 7 and detects a maximum contrast evaluation value, and executes focus control over an optical system 1 based on the optical-path length corresponding to the detected value. An imaging-purpose signal generation unit 15 generates an imaging-purpose video signal using only the first signal in an out-of-focus state, and using the first and second signals in an in-focus state.
    • 成像装置执行AF控制而不影响视频信号,并防止处于对焦状态的视频信号质量降低。 光路分离单元2将来自被摄体的光分离为第一和第二光束。 第一成像单元3使用第一光束产生第一信号。 第二成像单元7使用第二光束产生第二信号。 控制单元14基于第二信号产生对比度评估值,同时通过四分之一移动AF目的成像单元7来改变第二光束的光路长度,并检测最大对比度评估值,并且执行 基于对应于检测值的光路长度对光学系统1进行聚焦控制。 成像用信号生成单元15仅使用处于离焦状态的第一信号,并且使用处于对焦状态的第一信号和第二信号来生成成像用视频信号。
    • 59. 发明授权
    • Detection device for detecting conditions at a target position
    • 用于检测目标位置的状况的检测装置
    • US07605909B2
    • 2009-10-20
    • US11405450
    • 2006-04-18
    • Atsushi YamaguchiYoshihisa SuzukiMasato YamadaShuichi Ichiura
    • Atsushi YamaguchiYoshihisa SuzukiMasato YamadaShuichi Ichiura
    • G01C3/08
    • G01S7/481G01S7/497G01S17/936
    • An object of the present invention is to provide a detection device which does not cause the false detection by receiving laser light from an oncoming car.The pulse laser light modulated with a modulation pattern set every target position is irradiated at the target position from a laser irradiation portion. DSP (Digital Signal Processor) decides that there is an obstacle at the target position only when the modulation pattern of the pulse laser light emitted from the laser emitting portion matches with the modulation pattern of the pulse laser light received by the laser receiving portion. It is suppressed that the detection device misdetects the conditions of the target position when receiving laser light from an oncoming car or the like because modulation pattern of laser light from own does not match with modulation pattern of laser light from the oncoming car or the like.
    • 本发明的目的是提供一种通过接收来自迎面而来的轿厢的激光不会引起错误检测的检测装置。 以每个目标位置设定的调制图案调制的脉冲激光在激光照射部分的目标位置被照射。 只有当从激光发射部分发射的脉冲激光的调制图案与由激光接收部分接收的脉冲激光的调制图案匹配时,DSP(数字信号处理器)才确定目标位置处存在障碍物。 抑制了当从迎面而来的轿厢等接收激光时检测装置误检目标位置的状况,因为来自其的激光的调制图案与迎面而来的轿厢等的激光的调制图案不匹配。