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1. 发明申请

US20070146683A1 Distance measuring method and distance measuring device 失效
标题翻译：距离测量方法和距离测量装置
公开(公告)号：US20070146683A1
公开(公告)日：2007-06-28
申请号：US11635115
申请日：2006-12-07
申请人： Fumio Ohtomo , Masahiro Ohishi , Ikuo Ishinabe , Kazuhiro Shida
发明人： Fumio Ohtomo , Masahiro Ohishi , Ikuo Ishinabe , Kazuhiro Shida
IPC分类号： G01C3/08
CPC分类号： G01C15/002
摘要： A distance measuring method for performing distance measurement by projecting a distance measuring light to an object to be measured and by receiving a reflected light, comprising: a step of projecting for scanning the distance measuring light which has at least one luminous flux with a predetermined spreading angle; a step of emitting the light by pulsed light emission at least two times during a period when the luminous flux traverses the object to be measured; a step of measuring a distance by receiving the reflected light at least two times; and a step of averaging the results of the distance measurement.
摘要翻译：一种距离测量方法，用于通过将距离测量光投射到待测对象并接收反射光来进行距离测量，所述距离测量方法包括：将具有至少一个光通量的距离测量光以预定扩展角度; 在光束穿过被测定物体的期间，通过脉冲发光发光至少两次的步骤; 通过接收反射光至少两次来测量距离的步骤; 以及对距离测量的结果进行平均的步骤。

2. 发明授权

US07382443B2 Distance measuring method and distance measuring device 失效
标题翻译：距离测量方法和距离测量装置
公开(公告)号：US07382443B2
公开(公告)日：2008-06-03
申请号：US11635115
申请日：2006-12-07
申请人： Fumio Ohtomo , Masahiro Ohishi , Ikuo Ishinabe , Kazuhiro Shida
发明人： Fumio Ohtomo , Masahiro Ohishi , Ikuo Ishinabe , Kazuhiro Shida
IPC分类号： G01B3/36
CPC分类号： G01C15/002
摘要： A distance measuring method for performing distance measurement by projecting a distance measuring light to an object to be measured and by receiving a reflected light, comprising: a step of projecting for scanning the distance measuring light which has at least one luminous flux with a predetermined spreading angle; a step of emitting the light by pulsed light emission at least two times during a period when the luminous flux traverses the object to be measured; a step of measuring a distance by receiving the reflected light at least two times; and a step of averaging the results of the distance measurement.
摘要翻译：一种距离测量方法，用于通过将距离测量光投射到待测对象并接收反射光来进行距离测量，所述距离测量方法包括：将具有至少一个光通量的距离测量光以预定扩展角度; 在光束穿过被测定物体的期间，通过脉冲发光发光至少两次的步骤; 通过接收反射光至少两次来测量距离的步骤; 以及对距离测量的结果进行平均的步骤。

3. 发明授权

US07777865B2 Time difference measuring device, measuring method, distance measuring device, and distance measuring method 有权
标题翻译：时差测量装置，测量方法，距离测量装置和距离测量方法
公开(公告)号：US07777865B2
公开(公告)日：2010-08-17
申请号：US11664666
申请日：2005-09-30
申请人： Masahiro Ohishi , Fumio Ohtomo
发明人： Masahiro Ohishi , Fumio Ohtomo
IPC分类号： G01C3/08
CPC分类号： G01S17/105 , G01S7/497 , G04F10/06
摘要： A time difference measuring device can accurately measure a time difference between two pulse signals generated with a predetermined time difference by measuring the two pulse signals by one measurement. The time difference measuring device measures a time difference between a start signal (M1) and a stop signal (M2). The device has a reference signal generation unit (41) for generating two reference signals (S1, S2) having a π/2 phase difference. According to corresponding amplitude values (A11, A12) and (A21, A22) of the reference signals (S1, S2) at each generation timing of the start signal (M1) and the stop signal (M2), a phase difference detection unit (42) calculates a phase difference Δθ (=θstop−θstart) between the generation timings of the pulse signals (M1, M2). According to the detected phase difference Δθ and the cycle (Ts) of the reference signals (S1; S2), a time difference calculation unit (44) calculates the generation time difference Δt between the pulse signals (m1, M2).
摘要翻译：时差测量装置可以通过一次测量来测量两个脉冲信号来精确地测量以预定时间差产生的两个脉冲信号之间的时间差。时差测量装置测量起始信号（M1）和停止信号（M2）之间的时间差。该装置具有用于产生具有＆pgr / 2相位差的两个参考信号（S1，S2）的参考信号产生单元（41）。根据开始信号（M1）和停止信号（M2）的各生成定时的参考信号（S1，S2）的相应振幅值（A11，A12）和（A21，A22），相位差检测单元 42）计算相位差＆Dgr;＆Thetas; （M1，M2）的发生定时之间（=＆amp; t;停止 - 开始）。根据检测到的相位差＆Dgr;＆Thetas; 参考信号（S1; S2）的周期（Ts），时间差计算单元（44）计算脉冲信号（m1，M2）之间的生成时间差Dgr; t。

4. 发明授权

US5898489A Laser irradiation light detecting device 失效
标题翻译：激光照射光检测装置
公开(公告)号：US5898489A
公开(公告)日：1999-04-27
申请号：US848820
申请日：1997-05-01
申请人： Fumio Ohtomo , Hiroshi Koizumi , Masayuki Momiuchi , Masahiro Ohishi , Toshikazu Adegawa
发明人： Fumio Ohtomo , Hiroshi Koizumi , Masayuki Momiuchi , Masahiro Ohishi , Toshikazu Adegawa
IPC分类号： G01C15/00 , G01S7/484 , G01S7/486 , G01S17/02 , H01S3/00 , H01S3/131 , H01S3/16 , G01B11/26
CPC分类号： G01S7/486 , G01C15/004 , G01S17/02 , G01S7/484
摘要： The present invention relates particularly to a laser irradiation light detecting device having detecting means for receiving a reflected light pencil of a laser light pencil applied from a laser irradiating device provided with a non-linear optical medium for generating a second harmonic. A laser light source pumps an optical resonator and a pulse driving means drives the laser light source. An irradiating means applies a pencil of pulse laser light produced from a laser oscillating device to a target device. A detecting means detects a light pencil reflected from the target device. An arithmetic processing means executes predetermined operations, based on the signal detected by the detecting means. The detecting means detects the reflected light pencil of the pulse laser light pencil in synchronism with a period T of a driving pulse of the pulse driving means.
摘要翻译：本发明具体涉及一种具有检测装置的检测装置，该检测装置用于接收由设置有用于产生二次谐波的非线性光学介质的激光照射装置施加的激光笔的反射光线。激光源泵浦光谐振器，并且脉冲驱动装置驱动激光光源。照射装置将由激光振荡装置产生的脉冲激光笔用于目标装置。检测装置检测从目标装置反射的光笔。算术处理装置根据由检测装置检测的信号执行预定的操作。检测装置与脉冲驱动装置的驱动脉冲的周期T同步地检测脉冲激光笔的反射光笔。

5. 发明授权

US06396571B2 Portable type distance measuring apparatus 有权
公开(公告)号：US06396571B2
公开(公告)日：2002-05-28
申请号：US09883637
申请日：2001-06-18
申请人： Fumio Ohtomo , Masahiro Ohishi
发明人： Fumio Ohtomo , Masahiro Ohishi
IPC分类号： G01C308
CPC分类号： G01S17/36 , G01C15/002 , G01C15/006 , G01S7/481 , G01S7/497 , G01S17/06
摘要： A portable type distance measuring apparatus which comprises an apparatus main body 11 having a distance measuring unit for measuring a distance by projecting a distance measuring light 30, a control unit for controlling the distance measuring unit and for processing measurement data from the distance measuring unit and a transmitting unit to emit a communication light including the measurement data to a distance measuring direction, and a target unit having a display unit 13, an operation unit 14 and a photodetection unit 15 for receiving the communication light, wherein the target unit is removably mounted on the apparatus main body so that the target unit may be used as an object to be measured for distance measurement when necessary.

6. 发明授权

US06356344B1 Mixing apparatus and optical rangefinder using the same 有权
标题翻译：混合装置和使用其的光学测距仪
公开(公告)号：US06356344B1
公开(公告)日：2002-03-12
申请号：US09450254
申请日：1999-11-29
申请人： Masahiro Ohishi , Fumio Ohtomo
发明人： Masahiro Ohishi , Fumio Ohtomo
IPC分类号： G01C308
CPC分类号： G02B6/4206 , G01C3/08 , G01S7/4818 , G01S17/325 , G02B6/14 , G02B26/06
摘要： The invention particularly relates to a mixing apparatus using an eccentric phase plate, and an optical rangefinder using the mixing apparatus. In the optical rangefinder, an external distance measurement optical path leads light from the light source to a light receiving part passing through an article to be measured, an internal distance measurement optical path leads the light from the light source to the light receiving part not passing through the article to be measured, and processing means calculates the distance to the article to be measured from the difference between the distance value obtained by the external distance measurement optical path and the distance value obtained by the internal distance measurement optical path. In the mixing apparatus, driving means drives the phase plate.
摘要翻译：本发明特别涉及使用偏心相位板的混合装置和使用该混合装置的光学测距装置。在光学测距器中，外部距离测量光路将光从光源引导到通过待测物品的光接收部分，内部距离测量光路将来自光源的光引导到不能通过的光接收部分通过要测量的物品，并且处理装置根据由外部距离测量光路获得的距离值与通过内部距离测量光路获得的距离值之间的差计算到待测物品的距离。在混合装置中，驱动装置驱动相位板。

7. 发明授权

US5075878A High resolution measuring device for time difference 失效
标题翻译：用于时差的高分辨率测量装置
公开(公告)号：US5075878A
公开(公告)日：1991-12-24
申请号：US687198
申请日：1991-04-18
申请人： Fumio Ohtomo , Masahiro Ohishi
发明人： Fumio Ohtomo , Masahiro Ohishi
IPC分类号： G01S17/10 , G01S17/36 , G04F10/04 , G04F10/06
CPC分类号： G04F10/06 , G01S17/10
摘要： High resolution measuring systems use a continuous series of laser pulses in measuring distance to an object. An approximate time difference between transmitted and reflected pulses is derived. A second, more accurate, time difference is derived through use of a reference signal sampled in correlation to the pulse signal in order to derive a sampled waveform signal having a period which is long relative to the period of the pulse signal. Phase difference measurements of this sampled waveform provide delay time measurements of high accuracy. The high accuracy and approximate time difference signals are combined to determine time difference between measurement pulses with increased resolution. Time difference is converted to precision distance measurments, with greater accuracy available by averaging several measurements. Several embodiments are described.

8. 发明授权

US5054911A Light wave distance measuring instrument of the pulse type 失效
标题翻译：光波测距仪脉冲型
公开(公告)号：US5054911A
公开(公告)日：1991-10-08
申请号：US453904
申请日：1989-12-20
申请人： Masahiro Ohishi , Fumio Ohtomo
发明人： Masahiro Ohishi , Fumio Ohtomo
IPC分类号： G01S7/48 , G01B11/02 , G01S7/481 , G01S17/10
CPC分类号： G01S7/4818 , G01B11/026 , G01S17/105
摘要： A light wave distance measuring instrument uses a light receiving diode for receiving both light from a light source diode coupled via an internal light passage and light from the light source diode coupled via an external light passage. A beam splitter separates light pulses from a single source diode to supply light pulses for both internal and external passages. A reference signal is sampled using detected signals representing the timing of received internal reference light pulses and external measurement light pulses to provide first and second signals with phase difference representing measured distance. These signals are processed in a CPU for calculating distance with reduced errors due to frequency drift. By introducing an optical fiber delay medium, reflected light pulses are separated in time from the internal reference pulses so that these pulses can be used directly for differential time determination purposes and the measurement of distances to objects close to the measuring instrument is made possible.
摘要翻译：光波距离测量仪器使用光接收二极管来接收来自经由内部光通路耦合的光源二极管的光和经由外部光通路耦合的光源二极管的光。光束分离器将来自单个源极二极管的光脉冲分开以为内部和外部通道提供光脉冲。使用表示接收的内部参考光脉冲和外部测量光脉冲的定时的检测信号对参考信号进行采样，以提供表示测量距离的相位差的第一和第二信号。这些信号在CPU中进行处理，用于计算由于频率漂移引起的误差减小的距离。通过引入光纤延迟介质，反射光脉冲在时间上与内部参考脉冲分离，使得这些脉冲可以直接用于差分时间确定目的，并且使得靠近测量仪器的物体的距离的测量成为可能。

9. 发明授权

US07945821B2 Time lag measuring device, distance measuring apparatus and distance measuring method 有权
标题翻译：时滞测量装置，距离测量装置和距离测量方法
公开(公告)号：US07945821B2
公开(公告)日：2011-05-17
申请号：US11921914
申请日：2006-06-12
申请人： Masahiro Ohishi , Yoshikatsu Tokuda , Fumio Ohtomo
发明人： Masahiro Ohishi , Yoshikatsu Tokuda , Fumio Ohtomo
IPC分类号： G06K5/04
CPC分类号： G01S17/10 , G01S7/4865 , G01S7/487 , G04F10/06
摘要： In measuring a certain time lag between generations of two pulse signals, a time lag measuring device prevents errors in measurement results even with an error in two reference signals for measuring the time lag. The device measures a time lag between a start signal M1 and a stop signal M2 and includes a reference signal generating section 41 generating two reference signals S1, S2 having a phase difference π/2, and an amplitude detecting section 42 detects amplitudes A11, A12 and A21, A22 of the reference signals S1, S2 at generation timings for the start signal M1 and the stop signal M2, a phase difference detecting section 43 calculating a phase _ of the reference signals S according to each set of the amplitudes (A11, A12) and (A21, A22), and a correcting section 46 correcting the calculated phase using correction data for error correction in the reference signals S1, S2.
摘要翻译：在测量两个脉冲信号代之间的一定时间滞后的情况下，时差测量装置即使在两个参考信号中用于测量时滞的误差也可以防止测量结果中的错误。该装置测量起始信号M1和停止信号M2之间的时间滞后，并且包括产生具有相位差pgr / 2的两个参考信号S1，S2的参考信号产生部分41，并且振幅检测部分42检测振幅A11， A12和A21，在起始信号M1和停止信号M2的产生定时处的参考信号S1，S2的A22，相位差检测部分43，根据各组幅度（A11）计算参考信号S的相位，A12）和（A21，A22），以及校正部46，其使用用于参考信号S1，S2中的纠错的校正数据来校正计算出的相位。

10. 发明授权

US6084896A Laser light-source apparatus and method of producing light beam 失效
标题翻译：激光光源装置及其制造方法
公开(公告)号：US6084896A
公开(公告)日：2000-07-04
申请号：US782591
申请日：1997-01-13
申请人： Fumio Ohtomo , Hiroshi Koizumi , Masayuki Momiuchi , Masahiro Ohishi , Yoshiaki Goto
发明人： Fumio Ohtomo , Hiroshi Koizumi , Masayuki Momiuchi , Masahiro Ohishi , Yoshiaki Goto
IPC分类号： H01S3/102 , H01S5/022 , H01S5/062 , H01S3/00
CPC分类号： H01S5/06216 , H01S3/1022 , H01S3/005 , H01S3/094076 , H01S3/0941 , H01S3/10046
摘要： The present invention relates to a laser light-source apparatus and a method of producing a laser beam, and particularly to a laser light-source apparatus capable of generating intermittent pulse light having a predetermined flickering time and emphasizing the brightness of its peak by a Bartley effect. A timing circuit forms a timing signal so as to allow an excitation type laser light source to produce the intermittent pulse light having the predetermined flickering time. A pumping laser pumps the excitation type laser light source based on the signal outputted from the timing circuit. The intermittent pulse light is flickering slower than a flicker value of a normal person in cycle. The time required to put out the intermittent pulse light is set to a time or so required to restore the sensitivity of each of human eyes to the maximum sensitivity after the human eyes have felt brightness since light has been launched into the human eyes.
摘要翻译：激光光源装置及其制造方法技术领域本发明涉及激光光源装置和激光束的制造方法，特别涉及能够产生具有规定的闪烁时间的间歇脉冲光并且通过巴特利强调其峰值的亮度的激光光源装置影响。定时电路形成定时信号，以允许激励型激光光源产生具有预定闪烁时间的间歇脉冲光。泵浦激光器基于从定时电路输出的信号泵浦激励型激光光源。间歇脉冲灯的闪烁比正常人的闪烁值慢。放出间歇脉冲光所需的时间被设定为将光照射到人眼中之后人眼感觉到亮度后将人眼的灵敏度恢复到最大灵敏度所需的时间。

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