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公开(公告)号：US20190339549A1
公开(公告)日：2019-11-07
申请号：US16512909
申请日：2019-07-16
Inventor： Daichi WATANABE , Satomi KATAYOSE , Kei WATANABE , Yu KURATA , Ryoichi KASAHARA
Abstract: A fringe projector apparatus includes: a phase modulator having a first waveguide, a second waveguide, and a plurality of heaters including a first heater and a second heater, wherein the first and second waveguides and the plurality of heaters are provided on a single substrate, and wherein the first heater heats the first waveguide and the second heater heats a position away from the first waveguide; a light source that generates a light beam to be input to the first waveguide and the second waveguide; and a controller that controls a phase difference between the first waveguide and the second waveguide by changing an electric power consumption of the first heater under a condition that a total electric power consumption of the plurality of heaters is constant.
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公开(公告)号：US20180073864A1
公开(公告)日：2018-03-15
申请号：US15813955
申请日：2017-11-15
Applicant: OLYMPUS CORPORATION
Inventor： Daichi WATANABE
CPC classification number: G01B11/2441 , G01B9/02001 , G01B11/25
Abstract: An interference fringe projection apparatus includes light source units that selectively emit light from a coherent light source from one of a plurality of optical emitters, a polarization-maintaining waveguide unit with a plurality of PANDA fibers (polarization-maintaining waveguides) that each guide light emitted from one of the plurality of optical emitters, polarization splitters that split an optical path of light emitted from each of the PANDA fibers by polarization direction, and a polarizing film that transmits only a linear polarization component in a particular direction of light split by the polarization splitter. The light source unit only emits linearly polarized light in one polarization-maintaining direction for at least one of the PANDA fibers, and the polarization-maintaining waveguide unit causes retardation of light emitted from the PANDA fibers to vary.
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公开(公告)号：US20180073863A1
公开(公告)日：2018-03-15
申请号：US15813815
申请日：2017-11-15
Applicant: OLYMPUS CORPORATION
Inventor： Daichi WATANABE
CPC classification number: G01B11/2441 , A61B1/00 , A61B1/06 , G01B11/24 , G01B11/25 , G01B11/30 , G02B23/2461 , G02B23/2469 , G02B27/283 , G02B27/286
Abstract: An illumination apparatus includes a light source including a semiconductor laser that emits coherent light, a polarization splitter including rutile, a half-phase retardation film, and another rutile to split optical paths by the polarization direction of incident light, and a projection polarization switching mechanism including a half-wave plate unit, a quarter-wave plate unit, and a polarizing film to switch projected light emitted from the polarization splitter between polarization components of light transmitted over optical paths split by the polarization splitter and a polarization component of light transmitted over any one optical path. As a result, a compact illumination apparatus, and a measurement apparatus using the same, with a common light source and optical system for both observation light and measurement light can be provided.
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公开(公告)号：US20160357013A1
公开(公告)日：2016-12-08
申请号：US15242304
申请日：2016-08-19
Applicant: OLYMPUS CORPORATION
Inventor： Daichi WATANABE , Kanto MIYAZAKI
CPC classification number: G02B27/0081 , G02B1/11 , G02B1/18 , G02B6/00 , G02B6/0031 , G02B6/0036 , G02B6/0046 , G02B6/0056 , G02B6/0076 , G02B6/0088 , G02B6/12004 , G02B27/48 , G03B21/00 , G03B21/14 , G03B21/208
Abstract: A display apparatus includes a light guide that propagates image light while totally reflecting the image light, an optical system that introduces the image light into the light guide, a light beam extractor that emits the image light propagating in the light guide from an observer-side surface of the light guide along an extent of propagation of the image light, and a window member facing the observer-side surface of the light guide with a gap therebetween.
Abstract translation: 一种显示装置，包括：在完全反射图像光的同时传播图像光的光导;将图像光引入光导中的光学系统;光束提取器，其从观察者侧发射在光导中传播的图像光; 沿着图像光的传播程度的光导的表面，以及与导光体的观察者侧表面相对的窗口部件，其间具有间隙。
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公开(公告)号：US20230419517A1
公开(公告)日：2023-12-28
申请号：US18244394
申请日：2023-09-11
Applicant: OLYMPUS CORPORATION , NATIONAL CANCER CENTER
Inventor： Tatsuya NAKAMURA , Daichi WATANABE , Kazunari HANANO , Keigo MATSUO , Taku SAKAMOTO , Ichiro ODA
CPC classification number: G06T7/50 , A61B1/0005 , G06T2207/10028 , G06T2207/20081 , G06T2207/30096
Abstract: A display processing unit causes a display device to display an endoscopic image of a living tissue in a somatic cavity captured by an endoscope. An operation reception unit receives a user operation that is performed so as to set an area of interest in the endoscopic image. An area-of-interest setting unit sets the area of interest in the endoscopic image based on the user operation. A three-dimensional information acquisition unit acquires three-dimensional shape information of the living tissue captured by the endoscope. A virtual surface derivation unit derives three-dimensional shape information of a virtual surface in the area of interest from three-dimensional shape information of an area different from the area of interest. A size information identification unit identifies information concerning a size of the virtual surface from the three-dimensional shape information of the virtual surface.
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Patent Agency Ranking
公开(公告)号：US20190339069A1
公开(公告)日：2019-11-07
申请号：US16517736
申请日：2019-07-22
Inventor： Daichi WATANABE , Kanto MIYAZAKI , Satomi KATAYOSE , Kei WATANABE , Yu KURATA , Ryoichi KASAHARA
Abstract: An optical measurement apparatus includes a light projector that projects a patterned light, and an imager that captures an image of a target onto which the patterned light has been projected. The light projector and the imager are fixed to each other via a mounting face that intersects both a projection axis direction of the light projector and an image acquisition axis direction of the imager.
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7.发明申请HOLOGRAM DATA GENERATING METHOD, HOLOGRAM IMAGE REPRODUCTION METHOD, AND HOLOGRAM IMAGE REPRODUCTION DEVICE 审中-公开HOLOGRAM数据生成方法，HOLOGRAM图像再现方法和HOLOGRAM图像再现装置公开(公告)号：US20160378062A1
公开(公告)日：2016-12-29
申请号：US15257207
申请日：2016-09-06
Applicant: OLYMPUS CORPORATION
Inventor： Daichi WATANABE , Yoshiaki HORIKAWA
CPC classification number: G03H1/0808 , G03H1/0841 , G03H1/0866 , G03H1/2286 , G03H1/2294 , G03H1/30 , G03H2001/0883 , G03H2001/2231 , G03H2001/2234 , G03H2222/18 , G03H2222/34 , G03H2223/19 , G03H2223/23 , G03H2225/60
Abstract: Hologram data is generated by dividing hologram data generation area, in which hologram data is generated, into a plurality of element sub-areas, computing base hologram data that pertains to an area smaller than the hologram data generation area and that is to form an optical wavefront of an image to be reconstructed, and assigning, as hologram data of the element sub-areas4, hologram data of an entirety or a part of the area to which the base hologram data pertains. Consequently, the amount of operations for generating a hologram pattern in holographic display is reduced.
Abstract translation: 通过将全息图数据生成区域（其中生成全息图数据）分割成多个元素子区域来生成全息图数据，计算与全息图数据生成区域相比小的区域的基本全息图数据，并且形成光学 将要重构的图像的波前，以及作为基本全息图数据所属区域的全部或部分的全息图数据分配为元素子区域4的全息图数据。 因此，在全息显示器中产生全息图图案的操作量减少。
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公开(公告)号：US20190339055A1
公开(公告)日：2019-11-07
申请号：US16517721
申请日：2019-07-22
Inventor： Daichi WATANABE , Kei WATANABE , Yu KURATA , Satomi KATAYOSE , Ryoichi KASAHARA
Abstract: An illumination apparatus generates an interference fringe. An input arm receives an input light beam from a light source. A splitter splits the input light beam that has passed through the input arm into a first output arm and a second output arm. A phase modulator changes a phase difference between the output light beams of the first output arm and the second output arm. A phase detector detects the phase difference between output light beams respectively output from the first output arm and the second output arm based on a return light beam generated by combining a first reflected light beam and a second reflected light beam respectively reflected by ends of the first output arm and the second output arm.
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公开(公告)号：US20190049237A1
公开(公告)日：2019-02-14
申请号：US16165948
申请日：2018-10-19
Applicant: OLYMPUS CORPORATION
Inventor： Daichi WATANABE
IPC: G01B11/24
Abstract: A three-dimensional form measurement device includes: an interference fringe projector that scans an interference fringe and projects one of a plurality of interference fringe patterns; an imaging device that images the subject of measurement onto which the interference fringe is projected and generates a plurality of interference fringe images corresponding to at least three different interference fringe patterns in each of a plurality of imaging conditions; and a controller that selects, for each pixel, which imaging condition should be used to compute a phase distribution image of the subject of measurement, and computes a phase of each pixel in the phase distribution image based on the pixel values in the plurality of interference fringe images corresponding to the imaging condition selected for each pixel.
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公开(公告)号：US20170111635A1
公开(公告)日：2017-04-20
申请号：US15391771
申请日：2016-12-27
Applicant: OLYMPUS CORPORATION
Inventor： Kanto MIYAZAKI , Takeshi YAMAZAKI , Daichi WATANABE
IPC: H04N13/04
CPC classification number: H04N13/398 , G02B26/105 , H01S5/42 , H04N13/302 , H04N13/32 , H04N2213/001
Abstract: Provided is an image display device, including: a light flux emitter (10) which emits a plurality of parallel light fluxes; and a controller (20) which periodically subjects, to two-dimensional deflection, the parallel light fluxes emitted from the light flux emitter (10), based on a scan signal, and controls, synchronously with the scan signal, light intensity of the plurality of parallel light fluxes based on a light intensity control signal based on image information input thereto, in which: the light flux emitter (10) has at least a plurality of photonic crystal semiconductor lasers (11a) which emit the plurality of parallel light fluxes and are two-dimensionally arranged; and the parallel light fluxes emitted from the plurality of photonic crystal semiconductor lasers (11a) are controlled in light intensity, based on the light intensity control signal.
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