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    • 1. 发明授权
    • Absolute measuring apparatus using laser and scanning mirrors
    • 使用激光和扫描镜的绝对测量装置
    • US5388115A
    • 1995-02-07
    • US61555
    • 1993-05-17
    • Hiroyuki KawashimaFumio OhtomoSusumu SaitoIsao Minegishi
    • Hiroyuki KawashimaFumio OhtomoSusumu SaitoIsao Minegishi
    • G01B9/02H01S3/10G01C3/00
    • G01B9/02007G01B9/02004G01B9/02014G01B9/02069G01B2290/60G01B2290/70
    • An absolute length measuring apparatus comprising light sources, a beam splitter, an object of measurement, a scanning mirror, a light receiver, sampling parts and a distance measuring part. The light sources emit alternately a plurality of coherent light beams having different wavelengths. The beam splitter splits the coherent light beam from the light sources into two optical paths. The object of measurement is located on one of the two optical paths stemming from the beam splitter. The scanning mirror is located on the other optical path stemming from the beam splitter and made movable in the direction of optical axis. The light receiver receives both the reflected light beam from the object of measurement and the reflected light beam from the scanning mirror through the beam splitter. The sampling parts generate sampling signals of various wavelengths by sampling the output of the light receiver every time the light sources emit a coherent light beam while scanned by the scanning mirror. The distance measuring part assumes a synthetic wavelength signal having a wavelength sufficiently greater than any individually generated wavelength based on the phase relations of the sampling signals, and measures the distance to the object of measurement in accordance with the synthetic wavelength signal.
    • 一种包括光源,分束器,测量对象,扫描镜,光接收器,采样部件和距离测量部件的绝对长度测量装置。 光源交替发射具有不同波长的多个相干光束。 分束器将来自光源的相干光束分成两个光路。 测量对象位于源于分束器的两条光路之一上。 扫描镜位于从分束器引出的另一光路上,并使其沿光轴方向移动。 光接收器接收来自测量对象的反射光束和来自扫描镜的反射光束通过分束器。 采样部件通过在扫描反射镜扫描时每次光源发出相干光束时,对光接收器的输出进行采样,来产生各种波长的采样信号。 距离测量部分基于采样信号的相位关系假设具有足够大于任何单独生成的波长的波长的合成波长信号,并且根据合成波长信号测量到测量对象的距离。
    • 2. 发明授权
    • Position detecting apparatus based on before and after mode-hop signals
    • 基于前后模式跳信号的位置检测装置
    • US5600442A
    • 1997-02-04
    • US365240
    • 1994-12-28
    • Isao MinegishiHiroyuki KawashimaSusumu Saito
    • Isao MinegishiHiroyuki KawashimaSusumu Saito
    • G01B11/00G01B9/02G01D5/26
    • G01D5/266
    • A position detecting apparatus comprises a light emitter which activates a laser source to emit a light beam so that mode hopping occurs, an interference optical system which directs the light beam from the laser source to a measuring light path on which an object to be measured is located and a reference light path on which a reflection mirror is placed and merges the reflected light beams coming back on the light paths so that the reflected light beams interfere with each other, a light sensor which receives the interference light beam provided by the interference optical system, and a position detector which determines the position of the object of measurement based on the interference signals produced by the light sensor before and after mode hopping caused by the light emitter.
    • 位置检测装置包括:发光体激活激光源发射光束以发生模式跳跃;干涉光学系统,其将来自激光源的光束引导到待测对象的测量光路; 位于其上并配置有反射镜的参考光路,并且将反射回到光路上的反射光合流,使得反射光束彼此干涉;光传感器,其接收由干涉光学器件提供的干涉光束 系统和位置检测器,其基于由光发射器引起的模式跳变之前和之后由光传感器产生的干扰信号来确定测量对象的位置。
    • 3. 发明授权
    • Wavelength stabilizing light source apparatus by maintaining a constant
phase difference
    • 波长稳定光源装置通过保持恒定的相位差
    • US5535003A
    • 1996-07-09
    • US413909
    • 1995-03-30
    • Hiroyuki KawashimaFumio OhtomoSusumu SaitoIsao Minegishi
    • Hiroyuki KawashimaFumio OhtomoSusumu SaitoIsao Minegishi
    • H01S5/068G01B9/02H01S3/13H01S5/0687
    • H01S3/1303G01J9/0246H01S5/0687
    • A wavelength stabilizing light source apparatus comprising a light source, a beam splitter, a scanning mirror, a reflector, a first and a second light receiver, a phase detector and a wavelength stabilizer. The first light receiver receives a first interference signal formed from the interference between coherent light coming from the scanning mirror and coherent light reflected by the first reflecting surface. The second light receiver receives a second interference signal formed from the interference between the coherent light coming from the scanning mirror and the coherent light reflected by the second reflecting surface. The phase detector detects the difference in phase between the first and the second interference signal. The wavelength stabilizer stabilizes the wavelength of the light source by keeping constant the phase difference detected by the phase detector. The apparatus also includes an optical path length difference forming device for keeping a constant difference in length between the first optical path of its first member and the second optical path of its second member despite changes in temperature.
    • 一种波长稳定光源装置,包括光源,分束器,扫描镜,反射器,第一和第二光接收器,相位检测器和波长稳定器。 第一光接收器接收由来自扫描反射镜的相干光和由第一反射表面反射的相干光之间的干涉形成的第一干涉信号。 第二光接收器接收由来自扫描反射镜的相干光与由第二反射面反射的相干光之间的干涉而形成的第二干涉信号。 相位检测器检测第一和第二干涉信号之间的相位差。 波长稳定器通过将相位检测器检测到的相位差保持恒定来稳定光源的波长。 该装置还包括光路长度差形成装置,尽管温度有变化,但仍保持其第一构件的第一光路与其第二构件的第二光路之间的长度上的恒定差。
    • 4. 发明授权
    • Wavelength stabilizing light source apparatus by maintaining a constant
phase difference
    • 波长稳定光源装置通过保持恒定的相位差
    • US5453833A
    • 1995-09-26
    • US61558
    • 1993-05-17
    • Hiroyuki KawashimaFumio OhtomoSusumu SaitoIsao Minegishi
    • Hiroyuki KawashimaFumio OhtomoSusumu SaitoIsao Minegishi
    • H01S5/068G01B9/02H01S3/13H01S5/0687
    • H01S3/1303G01J9/0246H01S5/0687
    • A wavelength stabilizing light source apparatus comprising a light source, a beam splitter, a scanning mirror, a reflector, a first and a second light receiver, a phase detector and a wavelength stabilizer. The first light receiver receives a first interference signal formed from the interference between the coherent light coming from the scanning mirror and coherent light reflected by the first reflecting surface. The second light receiver receives a second interference signal formed from the interference between the coherent light coming from the scanning mirror and the coherent light reflected by the second reflecting surface. The phase detector detects the difference in phase between the first and the second interference signal. The wavelength stabilizer stabilizes the wavelength of the light source by keeping constant the phase difference detected by the phase detector. The apparatus also includes an optical path length difference forming device for keeping a constant difference in length between the first optical path of its first member and the second optical path of its second member despite changes in temperature.
    • 一种波长稳定光源装置,包括光源,分束器,扫描镜,反射器,第一和第二光接收器,相位检测器和波长稳定器。 第一光接收器接收由来自扫描反射镜的相干光和由第一反射表面反射的相干光之间的干涉形成的第一干涉信号。 第二光接收器接收由来自扫描反射镜的相干光与由第二反射面反射的相干光之间的干涉而形成的第二干涉信号。 相位检测器检测第一和第二干涉信号之间的相位差。 波长稳定器通过将相位检测器检测到的相位差保持恒定来稳定光源的波长。 该装置还包括光路长度差形成装置,尽管温度有变化,但仍保持其第一构件的第一光路与其第二构件的第二光路之间的长度上的恒定差。
    • 5. 发明授权
    • Laser oscillation frequency stabilizer
    • 激光振荡频率稳定器
    • US06477189B1
    • 2002-11-05
    • US09614712
    • 2000-07-12
    • Noriko TakedaHiroyuki KawashimaSusumu Saito
    • Noriko TakedaHiroyuki KawashimaSusumu Saito
    • H01S313
    • H01S5/0687H01S5/005H01S5/0085
    • A laser oscillation frequency stabilizer including a laser light source portion having a laser light source whose oscillation frequency can be controlled and configured to emit a laser beam. The frequency stabilizer includes a polarized beam splitter configured to split a laser beam from the laser light source portion into laser beams having linearly polarized components. The frequency stabilizer includes a quarter wavelength plate converts the laser beams, split by the polarized beam splitters, into circularly polarized laser beams. Further, an absorption cell sealed with gaseous atoms or molecules having a certain absorption spectrum is disposed in an optical path of the circularly polarized laser beams, and has a uniform magnetic field applied thereto. A half mirror reflects partially each of the circularly polarized laser beams back through the absorption cell. A control portion controllably locks the oscillation frequency of the laser light source in accordance with transmitted light reception levels of laser light having passed in opposite directions through the absorption cell
    • 一种激光振荡频率稳定器,包括具有激光光源的激光光源部,该激光光源的振荡频率可以被控制并且被配置为发射激光束。 频率稳定器包括被配置为将来自激光光源部分的激光束分成具有线偏振分量的激光束的偏振分束器。 频率稳定器包括四分之一波长板,将由偏振分束器分离的激光束转换成圆偏振激光束。 此外,在圆偏振激光的光路中设置用具有一定吸收光谱的气态原子或分子密封的吸收单元,并且施加均匀的磁场。 半反射镜部分地将每个圆偏振激光束反射回吸收单元。 控制部可控制地根据透过相反方向通过吸收单元的激光的透射光接收电平来锁定激光光源的振荡频率
    • 6. 发明授权
    • Wavefront aberration compensating apparatus and ophthalmologic unit having the same
    • 波前像差补偿装置和眼科单元
    • US07537341B2
    • 2009-05-26
    • US12048095
    • 2008-03-13
    • Noriko SaitoAkio KobayashiHiroyuki Kawashima
    • Noriko SaitoAkio KobayashiHiroyuki Kawashima
    • A61B3/10A61B3/14A61B3/00
    • G02B26/06A61B3/1015A61B3/14G02B26/0825
    • A wavefront aberration compensating apparatus, which includes: a deformable mirror having electrodes and a thin-film mirror; an optical system provided with the deformable mirror and including an object; a wavefront sensor which measures a wavefront aberration of a light flux; and a controller configured to: calculate a first voltage value applied to each of the electrodes, on the basis of differences between application points on the thin-film mirror and target points both corresponding to the electrodes respectively; determine a superposition amplitude value of each expansion mode according to a polynomial of wavefront aberration, and calculate a second voltage value applied to each of the electrodes by using voltage templates previously stored, such that the wavefront aberration obtained by the wavefront sensor becomes a desired aberration; determine the voltage value applied to each of the electrodes, by mainly using the second voltage value in an initial stage of compensation of the configuration of the thin-film mirror and by mainly using the first voltage value in an end stage of the compensation; and repeat the compensation on the basis of the determined voltage value, such that the wavefront aberration of the light flux is suppressed.
    • 一种波前像差补偿装置,包括:具有电极和薄膜反射镜的可变形反射镜; 设置有可变形反射镜并包括物体的光学系统; 测量光通量的波前像差的波前传感器; 以及控制器,其被配置为:基于薄膜反射镜上的应用点和分别对应于电极的目标点​​之间的差异来计算施加到每个电极的第一电压值; 根据波前像差的多项式确定每个扩展模式的叠加振幅值,并且通过使用预先存储的电压模板来计算施加到每个电极的第二电压值,使得由波前传感器获得的波前像差成为期望的像差 ; 通过在补偿薄膜反射镜的构造的初始阶段主要使用第二电压值,并且主要在补偿的最后阶段使用第一电压值来确定施加到每个电极的电压值; 并根据确定的电压值重复补偿,从而抑制光通量的波前像差。
    • 7. 发明授权
    • Wavefront aberration compensating apparatus and ophthalmologic unit having the same
    • 波前像差补偿装置和眼科单元
    • US07520613B2
    • 2009-04-21
    • US12047946
    • 2008-03-13
    • Noriko SaitoAkio KobayashiHiroyuki Kawashima
    • Noriko SaitoAkio KobayashiHiroyuki Kawashima
    • A61B3/10A61B3/14
    • G02B26/06A61B3/1015A61B3/12
    • A wavefront aberration compensating apparatus, including: a deformable mirror which compensates a wavefront aberration of a light flux and includes electrodes, and a thin-film mirror which changes a configuration thereof in accordance with a voltage value applied to each of the electrodes; an optical system provided with the deformable mirror and including an object subjected to aberration compensation; a wavefront sensor which measures the wavefront aberration of the light flux; a memory which stores therein a voltage template provided for each expansion mode according to a polynomial of wavefront aberration, as a voltage alignment data for the electrodes which induces the corresponding expansion mode; and a controller configured to determine a superposition amplitude value of each of the expansion modes and calculate the voltage value applied to each of the electrodes by using the voltage templates stored such that the wavefront aberration obtained by the wavefront sensor becomes a desired aberration, and to repeat compensation of the configuration of the thin-film mirror on the basis of the calculated voltage value, such that the wavefront aberration of the light flux measured by the wavefront sensor is suppressed.
    • 一种波前像差补偿装置,包括:可变形反射镜,其补偿光束的波前像差并包括电极;以及薄膜反射镜,其根据施加到每个电极的电压值改变其配置; 设置有可变形反射镜并包括经受像差补偿的物体的光学系统; 测量光通量波前像差的波前传感器; 存储器,其中存储根据波前像差的多项式为每个扩展模式提供的电压模板作为引起相应扩展模式的电极的电压对准数据; 以及控制器,被配置为确定每个扩展模式的叠加振幅值,并且通过使用存储的电压模板来计算施加到每个电极的电压值,使得由波前传感器获得的波前像差成为期望的像差,并且 基于计算出的电压值重复补偿薄膜反射镜的结构,从而抑制由波前传感器测量的光通量的波前像差。
    • 8. 发明申请
    • DEFORMABLE MIRROR APPARATUS
    • 可变形镜子装置
    • US20080239528A1
    • 2008-10-02
    • US12032871
    • 2008-02-18
    • Kei MasunishiAkihiro KogaRyo FurukawaTetsuya KugimiyaAkio KobayashiHiroyuki Kawashima
    • Kei MasunishiAkihiro KogaRyo FurukawaTetsuya KugimiyaAkio KobayashiHiroyuki Kawashima
    • G02B26/00
    • G02B26/0825
    • It is made possible to provide a deformable mirror apparatus which is deformable to a complicated shape (high-order shape). A deformable mirror apparatus includes: a substrate; a plurality of electrodes provided on the substrate; a spacer fixed above the substrate, having a first opening passing through from a first face of the spacer facing to the substrate to a second face of the spacer facing opposite from the first face, surrounding the electrodes, and having a step on the second face; a drive part including a membrane part disposed so as to cover the step of the spacer and so as to be opposed to the electrodes, a casing part having an opening at a bottom face of which the membrane part is exposed and supporting the membrane part, and a reflection film provided on the membrane part; and a voltage generator configured to generate predetermined voltage patterns on the electrodes, respectively.
    • 可以提供可变形为复杂形状(高阶形状)的可变形反射镜装置。 可变形反射镜装置包括:基板; 设置在所述基板上的多个电极; 固定在所述基板上方的间隔件,具有第一开口,所述第一开口从所述间隔件的面向所述基板的第一面穿过所述间隔件的与所述第一面相反的第二面,所述第二面围绕所述电极,并且在所述第二面上具有台阶 ; 驱动部,其具有设置成覆盖所述间隔件的台阶并且与所述电极相对的膜部;壳体部,其在所述膜部露出并支撑所述膜部的底面具有开口部, 以及设置在所述膜部上的反射膜; 以及电压发生器,其被配置为分别在所述电极上产生预定的电压图案。
    • 9. 发明申请
    • WAVEFRONT ABERRATION COMPENSATING APPARATUS AND OPHTHALMOLOGIC UNIT HAVING THE SAME
    • US20080225228A1
    • 2008-09-18
    • US12047946
    • 2008-03-13
    • Noriko SaitoAkio KobayashiHiroyuki Kawashima
    • Noriko SaitoAkio KobayashiHiroyuki Kawashima
    • A61B3/14G02B7/188A61B3/10
    • G02B26/06A61B3/1015A61B3/12
    • A wavefront aberration compensating apparatus, including: a deformable mirror which compensates a wavefront aberration of a light flux and includes electrodes, and a thin-film mirror which changes a configuration thereof in accordance with a voltage value applied to each of the electrodes; an optical system provided with the deformable mirror and including an object subjected to aberration compensation; a wavefront sensor which measures the wavefront aberration of the light flux; a memory which stores therein a voltage template provided for each expansion mode according to a polynomial of wavefront aberration, as a voltage alignment data for the electrodes which induces the corresponding expansion mode; and a controller configured to determine a superposition amplitude value of each of the expansion modes and calculate the voltage value applied to each of the electrodes by using the voltage templates stored such that the wavefront aberration obtained by the wavefront sensor becomes a desired aberration, and to repeat compensation of the configuration of the thin-film mirror on the basis of the calculated voltage value, such that the wavefront aberration of the light flux measured by the wavefront sensor is suppressed.
    • 一种波前像差补偿装置,包括:可变形反射镜,其补偿光束的波前像差并包括电极;以及薄膜反射镜,其根据施加到每个电极的电压值改变其结构; 设置有可变形反射镜并包括经受像差补偿的物体的光学系统; 测量光通量波前像差的波前传感器; 存储器,其中存储根据波前像差的多项式为每个扩展模式提供的电压模板作为引起相应扩展模式的电极的电压对准数据; 以及控制器,被配置为确定每个扩展模式的叠加振幅值,并且通过使用存储的电压模板来计算施加到每个电极的电压值,使得由波前传感器获得的波前像差成为期望的像差,并且 基于计算出的电压值重复补偿薄膜反射镜的结构,从而抑制由波前传感器测量的光通量的波前像差。
    • 10. 发明申请
    • Ophthalmologic apparatus
    • 眼科仪器
    • US20080158508A1
    • 2008-07-03
    • US12005275
    • 2007-12-27
    • Hiroyuki KawashimaGaku TakeuchiTakao TanabeNoriyasu Kiryu
    • Hiroyuki KawashimaGaku TakeuchiTakao TanabeNoriyasu Kiryu
    • A61B3/14
    • A61B3/14
    • An ophthalmologic apparatus includes an imaging system that illuminates a retina of an eye, and images the retina of the eye based on reflective luminous flux from the retina, an aberration measurement part that measures optical aberration of the eye, an aberration compensation device disposed in the imaging system to compensate the optical aberration of the eye based on a signal from the aberration measurement part, a first focusing device disposed in an optical path of the imaging system to perform focusing of the image of the retina of the eye according to a refractive property of the eye, and a second focusing device disposed in the optical path of the imaging system to compensate infinitesimal spherical aberration generated by the aberration compensation device after adjustment by the first focusing device.
    • 眼科装置包括:照射眼睛的视网膜的成像系统,并且基于来自视网膜的反射光束对眼睛的视网膜进行成像,测量眼睛的光学像差的像差测量部,设置在眼睛中的像差补偿装置 成像系统,用于基于来自像差测量部分的信号补偿眼睛的光学像差;第一聚焦装置,其设置在成像系统的光路中,以根据折射特性进行眼睛的视网膜的图像的聚焦; 以及设置在成像系统的光路中的第二聚焦装置,以补偿由第​​一聚焦装置调节之后由像差补偿装置产生的无穷小的球面像差。