公开(公告)号：US20080117427A1

公开(公告)日：2008-05-22

申请号：US11941601

申请日：2007-11-16

申请人： Yuichi TERAMURA ,  Sadato AKAHORI ,  Karin KUROIWA

发明人： Yuichi TERAMURA ,  Sadato AKAHORI ,  Karin KUROIWA

IPC分类号： G01B9/02

CPC分类号： G01B9/02057 ,  G01B9/02004 ,  G01B9/02007 ,  G01B9/02027 ,  G01B9/02069 ,  G01B9/02087 ,  G01B9/02091 ,  G01B2290/45 ,  G01N21/4795

摘要： An optical tomograph is equipped with: a light source unit for emitting a plurality of light beams, the wavelengths of which are swept within different predetermined wavelength bands respectively with the same period; light dividing means, for dividing each light beam into a measuring light beam and a reference light beam; combining means, for combining reflected light beams, which are the measuring light beams reflected by a measurement target when the measuring light beams are irradiated thereon, with the reference light beams; interference light detecting means, for detecting an interference light beam, which is formed by the reflected light beam and the reference light beam being combined by the combining means, for each of the light beams as an interference signal; and tomographic image processing means, for generating a tomographic image of the measurement target employing the plurality of interference signals detected by the interference light detecting means.

摘要翻译： 光学断层摄影机配备有：用于发射多个光束的光源单元，其波长分别在相同的周期内在不同的预定波长带内扫描; 光分割装置，用于将每个光束分成测量光束和参考光束; 组合装置，用于将当测量光束照射在其上时由测量目标物反射的测量光束的反射光束与参考光束组合; 干涉光检测装置，用于检测由组合装置组合的反射光束和参考光束对每个光束的干涉光束作为干涉信号; 和断层图像处理装置，用于使用由干涉光检测装置检测的多个干涉信号来产生测量目标的断层图像。

公开(公告)号：US20080137094A1

公开(公告)日：2008-06-12

申请号：US11951689

申请日：2007-12-06

申请人： Yuichi TERAMURA ,  Karin KUROIWA

发明人： Yuichi TERAMURA ,  Karin KUROIWA

IPC分类号： G01B9/02

CPC分类号： G01B9/02057 ,  G01B9/02004 ,  G01B9/02007 ,  G01B9/02027 ,  G01B9/02069 ,  G01B9/02091 ,  G01B2290/45

摘要： An optical tomographic imaging apparatus capable of obtaining a high resolution tomographic image rapidly. Light beams swept in wavelength intermittently and repeatedly within first and second wavelength ranges respectively are outputted simultaneously from a light source unit. If the wavelength of either one of the light beams is within a fifth wavelength range, the other light beam is not outputted. The first or second wavelength range includes at least a portion of the fifth wavelength range. Each light beam is split into measuring and reference beams by a coupler. Wavelengths of reflected beams from a measuring object when the measuring beams are irradiated on the object and the reference beams are divided by a WDM coupler. The reflected beams and reference beams are combined by an optical coupler, and each interference beam produced thereby is detected with respect to each light beam as an interference signal.

摘要翻译： 一种能够快速获得高分辨率断层图像的光学层析成像装置。 从光源单元同时输出在第一和第二波长范围内间歇地和反复扫描的波长的光束。 如果光束中的任一个的波长在第五波长范围内，则不输出另一个光束。 第一或第二波长范围包括第五波长范围的至少一部分。 每个光束被耦合器分成测量和参考光束。 当测量光束照射在物体上时，来自测量对象的反射光束的波长和参考光束被WDM耦合器划分。 反射光束和参考光束通过光耦合器组合，并且由此产生的每个干涉光束相对于每个光束被检测为干扰信号。

公开(公告)号：US20080140328A1

公开(公告)日：2008-06-12

申请号：US11951643

申请日：2007-12-06

申请人： Karin KUROIWA

发明人： Karin KUROIWA

IPC分类号： G06F19/00

CPC分类号： G01N21/4795 ,  G01B9/02004 ,  G01B9/02007 ,  G01B9/02027 ,  G01B9/02091 ,  G01B2290/45

摘要： Light beams swept in wavelength repeatedly within first and second wavelength ranges respectively are outputted from a light source unit at the same time. Each light beam is split into measuring and reference beams. Reflected beams from a measuring object when the measuring beams are irradiated on the measuring object are combined with the reference beams. The wavelengths of the interference beams produced thereby are divided into three wavelength ranges, for example, a range not greater than 0.9 μm, a range from 0.9 to 1.2 μm, and a range longer than 1.2 μm by a wavelength dividing means to obtain interference signals. In the wavelength range from 0.9 to 1.2 μm which includes an overlapping wavelength range where the wavelength ranges of the light beams overlap with each other, either one of the light beams is outputted from the light source unit.

摘要翻译： 在第一和第二波长范围内重复地扫描波长的光束分别从光源单元同时输出。 每个光束被分成测量和参考光束。 当测量光束照射在测量对象上时来自测量对象的反射光束与参考光束组合。 由此产生的干涉光束的波长被波长分割装置分成三个波长范围，例如不大于0.9μm的范围，0.9-1.2μm的范围和大于1.2μm的范围，以获得干涉信号 。 在包括光束的波长范围相互重叠的重叠波长范围的0.9〜1.2μm的波长范围内，从光源单元输出光束中的任一个。

公开(公告)号：US20080079949A1

公开(公告)日：2008-04-03

申请号：US11864263

申请日：2007-09-28

申请人： Karin KUROIWA

发明人： Karin KUROIWA

IPC分类号： G01B11/02

CPC分类号： G01B9/02068 ,  G01B9/02004 ,  G01B9/02044 ,  G01B9/02091

摘要： An optical tomograph obtains tomographic images by administering frequency analysis on an interference light beam formed by interference between a reflected light beam, which is a measuring light beam reflected by a measurement target, and a reference light beam. A tomographic data obtaining section obtains tomographic data to be used for optical path length adjustment each time that the position, onto which the measuring light beam is irradiated, is changed. An optical path length adjusting section adjusts the optical path length of one of the measuring light beam, the reflected light beam, and the reference light beam, based on the obtained tomographic data.

摘要翻译： 光学断层摄影机通过对作为由测量对象物反射的测量光束的反射光与参考光束之间的干涉形成的干涉光束进行频谱分析，来获得断层图像。 断层数据获取部分每当照射测量光束的位置改变时，获得用于光程长度调整的断层数据。 基于获得的断层数据，光程长度调整部调整测定光束，反射光束和参照光中的一个的光路长度。