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1. 发明专利

JP4869877B2 Optical tomographic imaging apparatus 有权
公开(公告)号：JP4869877B2
公开(公告)日：2012-02-08
申请号：JP2006311286
申请日：2006-11-17
申请人：富士フイルム株式会社
发明人：友一寺村 , 貞登赤堀 , 果林黒岩
IPC分类号： G01N21/17 , A61B1/00 , A61B10/00
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 divider which divides each light beam into a measuring light beam and a reference light beam; light beam combiner which combines reflected light beams, which are the measuring light beams reflected by a measurement target when the measuring light beams are irradiated thereon, with a reference light. An interference light detector detects an interference light beam, which is formed by the reflected light beam and the reference light combined by the light beam combiner, for each of the light beams as an interference signal. A tomographic image processor generates a tomographic image of the measurement target employing the plurality of interference signals detected by the interference light detector.

2. 发明专利

JP4907279B2 Optical tomographic imaging apparatus 有权
公开(公告)号：JP4907279B2
公开(公告)日：2012-03-28
申请号：JP2006255357
申请日：2006-09-21
申请人：富士フイルム株式会社
发明人：果林黒岩
IPC分类号： A61B1/00 , A61B10/00 , G01N21/17
摘要： PROBLEM TO BE SOLVED: To achieve an optical coherence tomography measurement in which an efficient adjustment of the measurement start position can be made in obtaining tomographic images of a subject by analyzing the frequency of the interference light produced when the subject to be measured is irradiated with light whose wavelength is swept in a regular cycle. SOLUTION: In this optical tomography system, a controlling means 70 has the function of switching between a measurement starting position adjusting mode for adjusting the measurement starting position in which the system starts obtaining tomographic images of a subject in a depth direction and an image obtaining mode for obtaining the tomographic images of the subject. The controlling means 70 controls a light source unit 10 or an interference light detecting means 40 so that the wavelength resolution can be higher in the mode for adjusting the measurement starting position than in the mode for obtaining the images. COPYRIGHT: (C)2007,JPO&INPIT

3. 发明专利

JP4895277B2 Optical tomographic imaging apparatus 有权
公开(公告)号：JP4895277B2
公开(公告)日：2012-03-14
申请号：JP2006268415
申请日：2006-09-29
申请人：富士フイルム株式会社
发明人：果林黒岩
IPC分类号： A61B1/00 , A61B10/00 , G01B9/02 , G01N21/17 , G02B23/24
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.

4. 发明专利

JP4869896B2 Optical tomographic imaging apparatus 有权
公开(公告)号：JP4869896B2
公开(公告)日：2012-02-08
申请号：JP2006330878
申请日：2006-12-07
申请人：富士フイルム株式会社
发明人：友一寺村 , 果林黒岩
IPC分类号： G01N21/17 , A61B1/00 , A61B10/00 , G01B9/02 , G01B11/24
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.

5. 发明专利

JP4869895B2 Optical tomographic imaging apparatus 有权
公开(公告)号：JP4869895B2
公开(公告)日：2012-02-08
申请号：JP2006330877
申请日：2006-12-07
申请人：富士フイルム株式会社
发明人：果林黒岩
IPC分类号： G01N21/17 , A61B1/00 , G01B9/02 , G01B11/24
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 mum, a range from 0.9 to 1.2 mum, and a range longer than 1.2 mum by a wavelength dividing means to obtain interference signals. In the wavelength range from 0.9 to 1.2 mum 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.

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