Patents by Inventor Hiroyuki DAIGO
Hiroyuki DAIGO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11977219Abstract: An optical correction is predictively performed based on a result of AI learning previously performed by use of learning data including measurement data. The optical compensation system is provided with wavefront correction optics, a sensor and a controller. The wavefront correction optics corrects a wavefront of light that passes through a given optical path. The sensor obtains environmental information in the optical path. The controller calculates, based on the environmental information, a predicted wavefront disturbance of the light that has passed through the optical path and controls the wavefront correction optics so as to cancel the predicted wavefront disturbance.Type: GrantFiled: August 7, 2019Date of Patent: May 7, 2024Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., RIKEN, INSTITUTE FOR LASER TECHNOLOGYInventors: Masashi Iwashimizu, Hiroyuki Daigo, Shingo Nishikata, Kazunori Masukawa, Atsushi Ochiai, Toshikazu Ebisuzaki, Satoshi Wada, Yoshiyuki Takizawa, Masayuki Maruyama, Shinji Motokoshi
-
Patent number: 11802990Abstract: An optical system that obtains characteristics of a transmission path in atmosphere, when laser light propagates through this transmission path, at a place separated from this transmission path and before the propagation, and corrects wavefront of the laser light based on the obtained characteristics, is provided. The optical system is provided with an irradiation device and an atmospheric characteristics obtaining system. The irradiation device irradiates an external target with light via a first optical path. The atmospheric characteristics obtaining system is arranged in a second optical path separated from the first optical path and obtains characteristics of atmospheric environment in the first optical path with respect to the irradiated light. The irradiation device is provided with wavefront correction optics. The wavefront correction optics correct wavefront of the irradiated light based on the obtained characteristics.Type: GrantFiled: August 23, 2019Date of Patent: October 31, 2023Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., RIKEN, INSTITUTE FOR LASER TECHNOLOGYInventors: Masashi Iwashimizu, Hiroyuki Daigo, Shingo Nishikata, Kazunori Masukawa, Atsushi Ochiai, Toshikazu Ebisuzaki, Satoshi Wada, Yoshiyuki Takizawa, Masayuki Maruyama, Shinji Motokoshi
-
Publication number: 20230152163Abstract: A phase difference measuring device is provided with a phase conversion device and a detection device. The phase conversion device converts a first laser beam that passes therethrough so that the first laser beam includes a phase distribution of one cycle in an azimuth direction in a cross section of the first laser beam included in an arbitrary virtual plane perpendicular to an optical axis of the first laser beam. The detection device detects an azimuth angle of an intensity centroid of an interference pattern generated by at least a part of a first laser beam that has passed through the phase conversion device, and a part of a second laser beam that derives from a laser beam as seed light from which the first laser beam derives, of which an optical intensity is same as the at least a part of the first laser beam, and detects an inter-beam phase difference of the second laser beam.Type: ApplicationFiled: February 16, 2021Publication date: May 18, 2023Inventors: Koichi HAMAMOTO, Tomoya MORIOKA, Shingo NISHIKATA, Hiroyuki DAIGO, Noriaki MIYANAGA
-
Patent number: 11387618Abstract: A laser beam irradiation apparatus including: a plurality of laser light sources emitting first laser beams; and a light-condensing optics system having an incident face on which the first laser beams are made incident and performing an optical operation on the first laser beams to emit second laser beams. The plurality of laser light sources are configured to emit the first laser beams so that beam diameters are expanded towards the incident face. Each first laser beam overlaps at least one of the other laser beams on the incident face. The light-condensing optics system is configured so that beam diameters of second laser beams emitted from the light-condensing optics system are minimal on a target face, and a distance between a center of each second laser beam and the optical axis on the target face is smaller than a beam radius of each second laser beam on the target face.Type: GrantFiled: April 25, 2018Date of Patent: July 12, 2022Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., RIKENInventors: Masashi Iwashimizu, Hiroyuki Daigo, Shingo Nishikata, Kazunori Masukawa, Atsushi Ochiai, Toshikazu Ebisuzaki, Satoshi Wada, Yoshiyuki Takizawa
-
Publication number: 20220163670Abstract: A threat coping system (10) is provided with a threat coping device (300) that copes with a coping target (30) and a control device (200) that controls the threat coping device. The control device (200) is provided with a no-coping area setting means (514) and a coping instruction means (526). The no-coping area setting means (514) sets a no-coping area (12) based on information of a no-coping target that is not to cope with. The coping instruction means (526) generates an instruction signal, that instructs the threat coping device to cope a coping target, based on the no-coping area.Type: ApplicationFiled: February 17, 2020Publication date: May 26, 2022Inventors: Atsushi OCHIAI, Koichi HAMAMOTO, Tomoya MORIOKA, Hiroyuki DAIGO, Kazunori MASUKAWA, Shingo NISHIKATA, Yoshinori KAMIYA, Yuichi ARAKI
-
Patent number: 11163150Abstract: A driving optical system is used to observe a disturbance of a wavefront of reference light received from a target and generate a wavefront in a conjugate relationship with the wavefront. A plurality of control signals are generated on a basis of a plurality of Zernike coefficients calculated as a Zernike polynomial which approximates the wavefront disturbance in order to respectively drive a plurality of deformable mirrors included in the driving optical system. An adaptive optical system is provided which can optically compensate a wavefront disturbance derived from an atmospheric fluctuation even in a case of radiating laser light to a target moving at a high speed.Type: GrantFiled: April 25, 2018Date of Patent: November 2, 2021Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., RIKENInventors: Masashi Iwashimizu, Hiroyuki Daigo, Shingo Nishikata, Kazunori Masukawa, Atsushi Ochiai, Toshikazu Ebisuzaki, Satoshi Wada, Yoshiyuki Takizawa
-
Publication number: 20210318534Abstract: An optical correction is predictively performed based on a result of AI learning previously performed by use of learning data including measurement data. The optical compensation system is provided with wavefront correction optics, a sensor and a controller. The wavefront correction optics corrects a wavefront of light that passes through a given optical path. The sensor obtains environmental information in the optical path. The controller calculates, based on the environmental information, a predicted wavefront disturbance of the light that has passed through the optical path and controls the wavefront correction optics so as to cancel the predicted wavefront disturbance.Type: ApplicationFiled: August 7, 2019Publication date: October 14, 2021Inventors: Masashi IWASHIMIZU, Hiroyuki DAIGO, Shingo NISHIKATA, Kazunori MASUKAWA, Atsushi OCHIAI, Toshikazu EBISUZAKI, Satoshi WADA, Yoshiyuki TAKIZAWA, Masayuki MARUYAMA, Shinji MOTOKOSHI
-
Publication number: 20210311225Abstract: An optical system that obtains characteristics of a transmission path in atmosphere, when laser light propagates through this transmission path, at a place separated from this transmission path and before the propagation, and corrects wavefront of the laser light based on the obtained characteristics, is provided. The optical system is provided with an irradiation device and an atmospheric characteristics obtaining system. The irradiation device irradiates an external target with light via a first optical path. The atmospheric characteristics obtaining system is arranged in a second optical path separated from the first optical path and obtains characteristics of atmospheric environment in the first optical path with respect to the irradiated light. The irradiation device is provided with wavefront correction optics. The wavefront correction optics correct wavefront of the irradiated light based on the obtained characteristics.Type: ApplicationFiled: August 23, 2019Publication date: October 7, 2021Inventors: Masashi IWASHIMIZU, Hiroyuki DAIGO, Shingo NISHIKATA, Kazunori MASUKAWA, Atsushi OCHIAI, Toshikazu EBISUZAKI, Satoshi WADA, Yoshiyuki TAKIZAWA, Masayuki MARUYAMA, Shinji MOTOKOSHI
-
Publication number: 20210270568Abstract: A laser irradiation apparatus is provided with a controller that calculates at least one predicted movement position into which a target is predicted to move at a specific time in future, a transmission laser source that generates a transmission laser, irradiation optics configured to emit the transmission laser to the target and emit search laser to the predicted movement position and wavefront correction optics. The wavefront correction optics are configured to correct a wavefront of the transmission laser at the specific time based on observation light that returns when the search laser is emitted to the predicted movement position.Type: ApplicationFiled: July 3, 2019Publication date: September 2, 2021Inventors: Masashi IWASHIMIZU, Hiroyuki DAIGO, Shingo NISHIKATA, Kazunori MASUKAWA, Atsushi OCHIAI, Toshikazu EBISUZAKI, Satoshi WADA, Yoshiyuki TAKIZAWA, Masayuki MARUYAMA, Shinji MOTOKOSHI
-
Publication number: 20200227881Abstract: A laser beam irradiation apparatus including: a plurality of laser light sources emitting first laser beams; and a light-condensing optics system having an incident face on which the first laser beams are made incident and performing an optical operation on the first laser beams to emit second laser beams. The plurality of laser light sources are configured to emit the first laser beams so that beam diameters are expanded towards the incident face. Each first laser beam overlaps at least one of the other laser beams on the incident face. The light-condensing optics system is configured so that beam diameters of second laser beams emitted from the light-condensing optics system are minimal on a target face, and a distance between a center of each second laser beam and the optical axis on the target face is smaller than a beam radius of each second laser beam on the target face.Type: ApplicationFiled: April 25, 2018Publication date: July 16, 2020Inventors: Masashi IWASHIMIZU, Hiroyuki DAIGO, Shingo NISHIKATA, Kazunori MASUKAWA, Atsushi OCHIAI, Toshikazu EBISUZAKI, Satoshi WADA, Yoshiyuki TAKIZAWA
-
Publication number: 20200209610Abstract: Observing a disturbance of a wavefront of reference light received from a target and generating a wavefront in a conjugate relationship with the wavefront by use of a driving optical system. Generating a plurality of control signals on a basis of a plurality of Zernike coefficients calculated as a Zernike polynomial which approximates the wavefront disturbance in order to respectively drive a plurality of deformable mirrors included in the driving optical system. Providing an adaptive optical system which can optically compensate a wavefront disturbance derived from an atmospheric fluctuation even in a case of radiating laser light to a target moving at a high speed.Type: ApplicationFiled: April 25, 2018Publication date: July 2, 2020Inventors: Masashi IWASHIMIZU, Hiroyuki DAIGO, Shingo NISHIKATA, Kazunori MASUKAWA, Atsushi OCHIAI, Toshikazu EBISUZAKI, Satoshi WADA, Yoshiyuki TAKIZAWA
-
Patent number: 10290991Abstract: This solid laser amplification device has: a laser medium part that has a solid medium, into which a laser light enters from an entrance part and from which the laser light (L) is emitted to the outside from an exit part, and an amplification layer, which is provided on the surface of the medium, receives the laser light in the medium, and amplifies and reflects said light toward the exit part; a microchannel cooling part that cools the amplification layer; and a thermally conductive part that is provided so as to make contact between the amplification layer and the cooling part and transfers the heat of the amplification layer to the cooling part.Type: GrantFiled: June 8, 2016Date of Patent: May 14, 2019Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshiyuki Kondo, Yuichi Otani, Yoshiteru Komuro, Atsushi Kodama, Koichi Hamamoto, Hiroyuki Daigo, Naoki Inoue, Tomoya Morioka, Masahiro Kato, Shingo Nishikata
-
Patent number: 10236655Abstract: A solid laser amplification device having a laser medium that has a solid medium, into which a laser light enters and from which the laser light is emitted, and an amplification layer, provided on the surface of the medium, receives the laser light in the medium, and amplifies and reflects the light toward the exit; and a microchannel cooling part that has a plurality of cooling pipelines, into which a cooling solvent is conducted and which are arranged parallel to the surface of the amplification layer, and a cooling surface, at the outer periphery of the cooling pipelines and attached on the surface of the amplification layer, the microchannel cooling part cooling the amplification layer. The closer the position of the cooling pipeline to a position facing a section of the amplification layer that receives the laser light, the greater the cooling force exhibited by the cooling part.Type: GrantFiled: June 8, 2016Date of Patent: March 19, 2019Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshiyuki Kondo, Yuichi Otani, Yoshiteru Komuro, Atsushi Kodama, Koichi Hamamoto, Hiroyuki Daigo, Naoki Inoue, Tomoya Morioka, Masahiro Kato, Shingo Nishikata
-
Patent number: 10066937Abstract: A ranging apparatus transmits an optical input signal to an optical signal input/output unit mounted on a measurement target. The optical signal input/output unit receives the optical signal and transmits an optical output signal applied with an optical change, to the ranging apparatus. The ranging apparatus receives the optical output signal, measures a propagation distance from a light source a the light receiving unit through the optical signal input/output unit, and measures a relative position of the optical signal input/output unit based on the propagation distance. Thus, a distributed aperture radar is realized from the ranging apparatus and the optical signal input/output unit.Type: GrantFiled: June 3, 2013Date of Patent: September 4, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shingo Nishikata, Yuki Uchiyama, Hiroyuki Daigo, Takuya Koyama, Hiroki Uchida
-
Publication number: 20180145474Abstract: A solid laser amplification device having a laser medium that has a solid medium, into which a laser light enters and from which the laser light is emitted, and an amplification layer, provided on the surface of the medium, receives the laser light in the medium, and amplifies and reflects the light toward the exit; and a microchannel cooling part that has a plurality of cooling pipelines, into which a cooling solvent is conducted and which are arranged parallel to the surface of the amplification layer, and a cooling surface, at the outer periphery of the cooling pipelines and attached on the surface of the amplification layer, the microchannel cooling part cooling the amplification layer. The closer the position of the cooling pipeline to a position facing a section of the amplification layer that receives the laser light, the greater the cooling force exhibited by the cooling part.Type: ApplicationFiled: June 8, 2016Publication date: May 24, 2018Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshiyuki KONDO, Yuichi OTANI, Yoshiteru KOMURO, Atsushi KODAMA, Koichi HAMAMOTO, Hiroyuki DAIGO, Naoki INOUE, Tomoya MORIOKA, Masahiro KATO, Shingo NISHIKATA
-
Publication number: 20180145473Abstract: This solid laser amplification device has: a laser medium part that has a solid medium, into which a laser light enters from an entrance part and from which the laser light (L) is emitted to the outside from an exit part, and an amplification layer, which is provided on the surface of the medium, receives the laser light in the medium, and amplifies and reflects said light toward the exit part; a microchannel cooling part that cools the amplification layer; and a thermally conductive part that is provided so as to make contact between the amplification layer and the cooling part and transfers the heat of the amplification layer to the cooling part.Type: ApplicationFiled: June 8, 2016Publication date: May 24, 2018Inventors: Yoshiyuki KONDO, Yuichi OTANI, Yoshiteru KOMURO, Atsushi KODAMA, Koichi HAMAMOTO, Hiroyuki DAIGO, Naoki INOUE, Tomoya MORIOKA, Masahiro KATO, Shingo NISHIKATA
-
Patent number: 9356347Abstract: A radar system contains a plurality of sub-modules which irradiate beams for a distributed aperture radar. Each of the plurality of sub-modules irradiates the beam, moves and, and communicates with an external unit for a distributed aperture process. The radar system may contain a command unit configured to command the sub-modules. The command unit measures each sub-module and communicates with the sub-module, acquires necessary data of measurement data of the sub-module, position data received from the sub-module, operation situation data of the sub-module and topographical data around the sub-module, calculates a synthetic beam pattern, calculates the arrangement of the sub-modules when the synthetic beam pattern becomes equal to a predetermined pattern, and instructs each sub-module to move based on the calculated arrangement of the sub-modules.Type: GrantFiled: May 17, 2013Date of Patent: May 31, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shingo Nishikata, Yuki Uchiyama, Hiroyuki Daigo, Takuya Koyama, Hiroki Uchida
-
Patent number: 9263848Abstract: A directed-energy irradiating apparatus includes a switch which selects one of an FEL apparatus and an HPM apparatus to be supplied with a microwave based on external environmental data. A target is destroyed even in a situation in which a destruction effect by an FEL beam cannot be expected, while maintaining a destruction ability for the target by the FEL beam.Type: GrantFiled: June 4, 2013Date of Patent: February 16, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shingo Nishikata, Yuki Uchiyama, Hiroyuki Daigo, Ryuichi Matsuda, Shinya Ishii, Hiroki Uchida
-
Patent number: 8908720Abstract: A directed-energy irradiating apparatus includes an FEL apparatus and an HPM apparatus. The FEL apparatus accelerates free electrons by using a microwave supplied from a microwave source to irradiate an FEL beam and outputs a remaining microwave. The HPM apparatus irradiates an HPM beam generated based on the remaining microwave outputted from the FEL apparatus. It is possible to destroy a target even in a situation that a destruction effect by the FEL beam cannot expected, while maintaining the destruction ability of the FEL beam.Type: GrantFiled: June 3, 2013Date of Patent: December 9, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Shingo Nishikata, Yuki Uchiyama, Hiroyuki Daigo, Ryuichi Matsuda, Shinya Ishii, Hiroki Uchida
-
Publication number: 20140192340Abstract: A ranging apparatus transmits an optical input signal to an optical signal input/output unit mounted on a measurement target. The optical signal input/output unit receives the optical signal and transmits an optical output signal applied with an optical change, to the ranging apparatus. The ranging apparatus receives the optical output signal, measures a propagation distance from a light source a the light receiving unit through the optical signal input/output unit, and measures a relative position of the optical signal input/output unit based on the propagation distance. Thus, a distributed aperture radar is realized from the ranging apparatus and the optical signal input/output unit.Type: ApplicationFiled: June 3, 2013Publication date: July 10, 2014Inventors: Shingo NISHIKATA, Yuki UCHIYAMA, Hiroyuki DAIGO, Takuya KOYAMA, Hiroki UCHIDA