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1. 发明申请

US20180192870A1 IMAGE PROCESSING APPARATUS, OPTICAL COHERENCE TOMOGRAPHY APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM 审中-公开
公开(公告)号：US20180192870A1
公开(公告)日：2018-07-12
申请号：US15860760
申请日：2018-01-03
申请人： CANON KABUSHIKI KAISHA
发明人： Yasuhisa Inao , Shinya Tanaka , Yohei Saito , Hayato Shioda
IPC分类号： A61B3/10 , A61B3/00 , G06T5/50
CPC分类号： A61B3/102 , A61B3/0025 , A61B3/117 , A61B3/1225 , G06T5/50 , G06T2207/10101 , G06T2207/20076 , G06T2207/20172
摘要： An image processing apparatus that processes a tomographic image generated by using tomographic signals acquired by subjecting a subject to optical coherence tomographic imaging, includes an acquiring unit configured to acquire the tomographic signals, and a generation unit configured to generate a tomographic image based on a representative value in each pixel position of the tomographic image, generated by using the tomographic signals, the generation unit includes a region determination unit configured to determine a target region where contrast is reduced in the tomographic image, by using tomographic signals, and an estimation unit configured to estimate an estimation value, by performing statistical processing on tomographic signals corresponding to a pixel position of the tomographic image out of the tomographic signals, and the generation unit generates the tomographic image with the estimation value as the representative value in the target region.

2. 发明申请

US20170311795A1 OPHTHALMIC IMAGING APPARATUS 审中-公开
公开(公告)号：US20170311795A1
公开(公告)日：2017-11-02
申请号：US15476596
申请日：2017-03-31
申请人： CANON KABUSHIKI KAISHA
发明人： Toshiharu Sumiya , Yasuhisa Inao
IPC分类号： A61B3/10 , A61B3/00 , A61B3/14 , F21V8/00 , G02F1/225 , G02F1/21
CPC分类号： A61B3/102 , A61B3/0025 , A61B3/14 , G01B9/02004 , G01B9/02091 , G02B6/0008 , G02F1/2252 , G02F2001/212
摘要： An ophthalmic imaging apparatus that captures a tomographic image of an subject's eye based on light obtained by combining a return light with a reference light, the return light being from the subject's eye when irradiated with a measurement light, the reference light corresponding to the measurement light includes a first optical fiber disposed in an optical path of the reference light and including a light guide portion for guiding the reference light, and a second optical fiber disposed in an optical path of the measurement light and including a light guide portion for guiding the measurement light, wherein a diameter of each of the light guide portions of ejection ends of the first optical fiber and the second optical fiber is larger than a diameter of a light guide portion in a position different from a position of each of the ejection ends.

3. 发明申请

US20130195135A1 SURFACE EMITTING LASER 有权
标题翻译：表面发射激光
公开(公告)号：US20130195135A1
公开(公告)日：2013-08-01
申请号：US13750141
申请日：2013-01-25
申请人： CANON KABUSHIKI KAISHA
发明人： Tatsuro Uchida , Yasuhisa Inao
IPC分类号： H01S5/00
CPC分类号： H01S5/18 , B82Y20/00 , G03G15/04072 , H01S5/18311 , H01S5/18338 , H01S5/18391 , H01S5/209 , H01S5/3202 , H01S5/34326 , H01S2301/166
摘要： A surface emitting laser having a mesa structure includes an off-orientation substrate, a bottom reflection mirror, an active layer, a current confinement layer, a top reflection mirror, and a surface-relief structure. The central axis of a high-reflectivity region of the surface-relief structure and the central axis of the mesa structure do not coincide with each other.
摘要翻译：具有台面结构的表面发射激光器包括偏转衬底，底部反射镜，有源层，电流限制层，顶部反射镜和表面浮雕结构。表面浮雕结构的高反射率区域和台面结构的中心轴的中心轴线彼此不一致。

4. 发明授权

US10335026B2 Image processing apparatus that generates a tomographic image using an estimation value of pixel values, and related optical coherence tomography apparatus, image processing method, and computer-readable storage medium 有权
公开(公告)号：US10335026B2
公开(公告)日：2019-07-02
申请号：US15860760
申请日：2018-01-03
申请人： CANON KABUSHIKI KAISHA
发明人： Yasuhisa Inao , Shinya Tanaka , Yohei Saito , Hayato Shioda
IPC分类号： A61B3/14 , A61B3/10 , A61B3/00 , G06T5/50 , A61B3/117 , A61B3/12
摘要： An image processing apparatus includes a processor that acquires a plurality of sets of tomographic signals acquired by an image sensor, and generates a representative value in each pixel position of the tomographic image, using the plurality of sets of tomographic signals, and generates the tomographic image with the representative value in each pixel position as a pixel value by determining a target region in which contrast is reduced in the tomographic image, using at least one set of tomographic signals, out of the plurality of sets of tomographic signals, and estimating an estimation value, in each pixel position of the target region, by performing statistical processing on a plurality of tomographic signals corresponding to the pixel position, out of the plurality of sets of tomographic signals. The tomographic image is generated with the estimation value as the representative value in the target region.

5. 发明申请

US20140055790A1 VARIABLE WAVELENGTH SURFACE EMITTING LASER 审中-公开
标题翻译：可变波长表面发射激光
公开(公告)号：US20140055790A1
公开(公告)日：2014-02-27
申请号：US13971570
申请日：2013-08-20
申请人： CANON KABUSHIKI KAISHA
发明人： Yasuhisa Inao , Mamoru Uchida
IPC分类号： H01S5/06
CPC分类号： H01S5/06 , G01B9/02007 , G01N21/49 , H01S5/0207 , H01S5/026 , H01S5/18311 , H01S5/18341 , H01S5/18358 , H01S5/18366 , H01S5/18369 , H01S5/4087 , H01S5/423
摘要： A surface emitting laser includes a first laser, and a second laser, wherein each of the first laser and the second laser includes a light resonant cavity including a pair of reflecting mirrors, and a semiconductor layer configured to emit light and arranged inside the light resonant cavity, an oscillation wavelength of light varied by displacing a location of the reflecting mirror in a thickness direction of the semiconductor layer, the semiconductor layer is shared by the first laser and the second laser, the first laser has a resonant cavity length for oscillating with (n+1)th order (n is an integer of 1 or more) of a longitudinal mode, the second laser has a resonant cavity length for oscillating with nth order of a longitudinal mode, and respective wavelength bands of light oscillated by the first laser the second laser are different.
摘要翻译：表面发射激光器包括第一激光器和第二激光器，其中第一激光器和第二激光器中的每一个包括包括一对反射镜的光谐振腔，以及配置为发射光并布置在光谐振器内部的半导体层空腔中，通过在半导体层的厚度方向上移位反射镜的位置而改变的光的振荡波长，半导体层由第一激光器和第二激光器共享，第一激光器具有谐振腔长度，用于与（n + 1）次（n为1以上的整数），第二激光器具有用于以纵向模式的第n阶振荡的谐振腔长度，并且由第一激光器振荡的各波长带激光第二激光器是不同的。

6. 发明申请

US20130044780A1 SURFACE-EMITTING LASER AND SURFACE-EMITTING LASER ARRAY, METHOD OF MANUFACTURING A SURFACE-EMITTING LASER AND METHOD OF MANUFACTURING A SURFACE-EMITTING LASER ARRAY, AND OPTICAL APPARATUS INCLUDING A SURFACE-EMITTING LASER ARRAY 审中-公开
标题翻译：表面发射激光和表面发射激光阵列，制造表面发射激光的方法和制造表面发射激光阵列的方法以及包括表面发射激光阵列的光学装置
公开(公告)号：US20130044780A1
公开(公告)日：2013-02-21
申请号：US13652064
申请日：2012-10-15
申请人： CANON KABUSHIKI KAISHA
发明人： Yasuhisa Inao , Tatsuro Uchida , Takeshi Uchida
IPC分类号： H01S5/125
CPC分类号： H01S5/18391 , H01S5/18313 , H01S2301/166 , H01S2301/176
摘要： Provided is a method of manufacturing a surface-emitting laser capable of preventing characteristics fluctuations within the plane and among wafers and oscillating in a single fundamental transverse mode. The method includes after performing selective oxidation: exposing a bottom face of a surface relief structure by etching a second semiconductor layer with a first semiconductor layer where a pattern of the surface relief structure has been formed as an etching mask and a third semiconductor layer as an etching stop layer; and exposing a top face of the surface relief structure by etching the first semiconductor layer where the pattern of the surface relief structure has been formed, with the second semiconductor layer and the third semiconductor layer as etching stop layer.
摘要翻译：提供一种制造表面发射激光器的方法，其能够防止平面内和晶片之间的特性波动并且以单个基本横向模式振荡。该方法包括在执行选择氧化之后：通过用形成有表面浮雕结构的图案的第一半导体层蚀刻第二半导体层来暴露表面起伏结构的底面作为蚀刻掩模，并且将第三半导体层作为蚀刻停止层; 并且通过蚀刻形成有所述表面浮雕结构的图案的第一半导体层，以所述第二半导体层和所述第三半导体层为蚀刻停止层，使所述表面起伏结构的顶面露出。

7. 发明授权

US10660514B2 Image processing apparatus and image processing method with generating motion contrast image using items of three-dimensional tomographic data 有权
公开(公告)号：US10660514B2
公开(公告)日：2020-05-26
申请号：US15873059
申请日：2018-01-17
申请人： CANON KABUSHIKI KAISHA
发明人： Koichi Ohta , Yasuhisa Inao
IPC分类号： A61B3/00 , A61B3/12 , A61B3/10 , G06T5/50 , G06T11/60 , G06T7/00
摘要： An image processing apparatus that processes an image generated using at least one item of three-dimensional tomographic data out of a plurality of items of three-dimensional tomographic data obtained by conducting a plurality of optical coherence tomography scans of a subject at different times using measuring light controlled to scan a same position of the subject includes: a front image generating unit configured to generate a front image of the subject using the at least one item of three-dimensional tomographic data; a motion contrast image generating unit configured to generate a motion contrast image of the subject using the plurality of items of three-dimensional tomographic data; and a display control unit configured to display the front image on a display unit before displaying the motion contrast image.

8. 发明授权

US10537242B2 Imaging apparatus 有权
公开(公告)号：US10537242B2
公开(公告)日：2020-01-21
申请号：US15246202
申请日：2016-08-24
申请人： CANON KABUSHIKI KAISHA
发明人： Taro Fukasawa , Takashi Naba , Yasuhisa Inao
IPC分类号： A61B3/10 , A61B3/14 , A61B3/12 , A61B3/00
摘要： An imaging apparatus includes a converter configured to convert an analog signal obtained from detected interference light into a digital signal and a clock generator configured as an interferometer including an optical path through which part of light emitted from a light source passes, the optical path being split into a first optical path and a second optical path having an optical path length difference therebetween, to generate a clock used by the converter sampling the analog signal at a frequency corresponding to the optical path length difference. The converter includes n A/D converters, n being an integer of at least 2, and is configured to change phases of n clocks obtained from the clock to produce a phase difference therebetween, and to generate a clock having an n-times frequency from the n clocks and n analog signals obtained from the analog signal using the n A/D converters.

9. 发明申请

US20170065169A1 IMAGING APPARATUS 审中-公开
标题翻译：成像设备
公开(公告)号：US20170065169A1
公开(公告)日：2017-03-09
申请号：US15246202
申请日：2016-08-24
申请人： CANON KABUSHIKI KAISHA
发明人： Taro Fukasawa , Takashi Naba , Yasuhisa Inao
IPC分类号： A61B3/10 , A61B3/12 , A61B3/00 , A61B3/14
CPC分类号： A61B3/102 , A61B3/0025 , A61B3/1225 , A61B3/14
摘要： An imaging apparatus includes a converter configured to convert an analog signal obtained from detected interference light into a digital signal and a clock generator configured as an interferometer including an optical path through which part of light emitted from a light source passes, the optical path being split into a first optical path and a second optical path having an optical path length difference therebetween, to generate a clock used by the converter sampling the analog signal at a frequency corresponding to the optical path length difference. The converter includes n A/D converters, n being an integer of at least 2, and is configured to change phases of n clocks obtained from the clock to produce a phase difference therebetween, and to generate a clock having an n-times frequency from the n clocks and n analog signals obtained from the analog signal using the n A/D converters.
摘要翻译：一种成像装置包括转换器，其被配置为将从检测到的干涉光获得的模拟信号转换为数字信号;以及时钟发生器，被配置为干涉仪，所述时钟发生器被配置为包括从光源发射的光的一部分穿过的光路，在第一光路和第二光路之间具有光路长度差异，以产生转换器以对应于光程长度差的频率对模拟信号进行采样。转换器包括n个A / D转换器，n是至少为2的整数，并且被配置为改变从时钟获得的n个时钟的相位，以产生它们之间的相位差，并且产生具有n倍频率的时钟使用n个A / D转换器从模拟信号获得的n个时钟和n个模拟信号。

10. 发明申请

US20140227007A1 SURFACE-EMITTING LASER AND IMAGE FORMING APPARATUS USING THE SAME 审中-公开
标题翻译：使用表面发射激光和图像形成装置
公开(公告)号：US20140227007A1
公开(公告)日：2014-08-14
申请号：US14258354
申请日：2014-04-22
申请人： CANON KABUSHIKI KAISHA
发明人： Yasuhisa Inao , Mitsuhiro Ikuta , Tetsuya Takeuchi
IPC分类号： H01S5/187 , G03G15/04
CPC分类号： H01S5/187 , B82Y20/00 , G03G15/04 , G03G15/04072 , G03G15/326 , H01S5/18311 , H01S5/18358 , H01S5/3022 , H01S5/34326 , H01S5/3436 , H01S5/423
摘要： A surface-emitting laser that can prevent delamination at the interface of a selective oxidation layer and a spacer layer, while suppressing any rise of voltage, to improve the reliability of operation.
摘要翻译：一种表面发射激光器，其可以防止选择性氧化层和间隔层的界面处的分层，同时抑制电压的任何上升，以提高操作的可靠性。

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