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公开(公告)号：US11047292B2
公开(公告)日：2021-06-29
申请号：US16253694
申请日：2019-01-22
摘要： An ignition device configured to ignite a fuel included in an air-fuel mixture supplied to a main combustion chamber of an internal combustion engine. The ignition device includes a partition member that forms a precombustion chamber that encloses an ignition point of a fuel. The partition member has a plurality of communicating holes communicating between the main combustion chamber and the precombustion chamber. The ignition device further includes a first interference member that protrudes inward from an inner surface of the partition member.
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公开(公告)号：US20180226764A1
公开(公告)日：2018-08-09
申请号：US15889434
申请日：2018-02-06
申请人： Kentaroh HAGITA , Yoichi Ishikawa , Naoto Jikutani , Toshiyuki Ikeoh , Yuzuru Sasaki , Yusuke Okura
发明人： Kentaroh HAGITA , Yoichi Ishikawa , Naoto Jikutani , Toshiyuki Ikeoh , Yuzuru Sasaki , Yusuke Okura
CPC分类号： H01S3/034 , F02P13/00 , F02P23/04 , G02B1/118 , H01S3/005 , H01S3/025 , H01S3/0606 , H01S3/0627 , H01S3/094053 , H01S3/094057 , H01S3/09415 , H01S3/113 , H01S3/1643 , H01S3/1685 , H01S5/423 , H01T13/06
摘要： Laser devices include a light source that emits a laser beam, an optical system that concentrates the laser beam emitted from the light source, an optical window through which the laser beam exited from the optical system passes, a housing that accommodates the optical system, and an optical window holding member fixed to the housing. The optical window holding member holds the optical window. In the first laser device, the optical window has a face or a protruding face through which the laser beam passes. When the optical window has the face, the face is flush with an edge of the optical window holding member and a film is formed on the face. When the optical window has the protruding face, the protruding face protrudes with reference to the edge of the optical window holding member and a film is formed on the protruding face.
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公开(公告)号：US11075497B2
公开(公告)日：2021-07-27
申请号：US15889434
申请日：2018-02-06
申请人： Kentaroh Hagita , Yoichi Ishikawa , Naoto Jikutani , Toshiyuki Ikeoh , Yuzuru Sasaki , Yusuke Okura
发明人： Kentaroh Hagita , Yoichi Ishikawa , Naoto Jikutani , Toshiyuki Ikeoh , Yuzuru Sasaki , Yusuke Okura
IPC分类号： F02P23/00 , F02P23/04 , H01S3/034 , H01S3/094 , H01S3/02 , G02B1/118 , H01T13/06 , H01S3/06 , H01S3/00 , H01S3/0941 , H01S3/16 , F02P13/00 , H01S3/113 , H01S5/42
摘要： Laser devices include a light source that emits a laser beam, an optical system that concentrates the laser beam emitted from the light source, an optical window through which the laser beam exited from the optical system passes, a housing that accommodates the optical system, and an optical window holding member fixed to the housing. The optical window holding member holds the optical window. In the first laser device, the optical window has a face or a protruding face through which the laser beam passes. When the optical window has the face, the face is flush with an edge of the optical window holding member and a film is formed on the face. When the optical window has the protruding face, the protruding face protrudes with reference to the edge of the optical window holding member and a film is formed on the protruding face.
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公开(公告)号：US10481467B2
公开(公告)日：2019-11-19
申请号：US15982214
申请日：2018-05-17
IPC分类号： G02F1/35 , G01N21/3586 , G02F3/02
摘要： A terahertz wave generation apparatus includes a plurality of laser light sources configured to generate laser beams respectively having different wavelengths; and a terahertz wave generating element configured to receive the laser beams having different wavelengths and generate a terahertz wave from the laser beams. The plurality of laser light sources include fiber laser light sources respectively including parameters that can be controlled independently, and the terahertz wave generating element includes a nonlinear optical crystal.
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公开(公告)号：US10714888B2
公开(公告)日：2020-07-14
申请号：US16292381
申请日：2019-03-05
申请人： Toshiyuki Ikeoh , Yasuhiro Higashi , Yoshio Wada , Takumi Satoh , Hiroaki Minamide , Kouji Nawata , Yuma Takida
发明人： Toshiyuki Ikeoh , Yasuhiro Higashi , Yoshio Wada , Takumi Satoh , Hiroaki Minamide , Kouji Nawata , Yuma Takida
摘要： A pulsed electromagnetic-wave generator includes an excitation light source, a laser resonator, a pulse generating unit, and a wavelength converting unit. Excitation light from the excitation light source enters the laser resonator. The pulse generating unit is configured to generate a pulsed light group including at least two or more pulses with different frequencies (ω) and different oscillation timings (t) in one excitation process of the excitation light source, an oscillation frequency difference (Δω) between the pulses in the pulsed light group being an integral multiple of a Free Spectral Range (FSR) of the laser resonator. The pulsed light group enters the wavelength converting unit. The wavelength converting unit is configured to generate a pulsed electromagnetic wave in which a wavelength of each pulse in the pulsed light group is converted.
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公开(公告)号：US11644663B2
公开(公告)日：2023-05-09
申请号：US16413845
申请日：2019-05-16
申请人： Toshiya Yamaguchi , Toshiyuki Ikeoh
发明人： Toshiya Yamaguchi , Toshiyuki Ikeoh
IPC分类号： G02B26/08 , F21S41/16 , F21S41/176 , F21S41/30 , F21S41/675 , G02B26/10 , B29D11/00 , G03G15/04 , G02B27/01 , B29K709/08 , G01S7/481 , G01S17/04 , B60K35/00
CPC分类号： G02B26/0833 , B29D11/0074 , F21S41/16 , F21S41/176 , F21S41/30 , F21S41/675 , G01S7/4817 , G01S17/04 , G02B26/10 , G02B27/0101 , G03G15/04036 , B29K2709/08 , B60K35/00 , B60K2370/1529
摘要： A light deflector, a method of manufacturing the light deflector, and an image projector. The light deflector and the method includes forming a first wafer provided with a plurality of movable mirror units, bonding the first wafer to be sandwiched between a second wafer on which a plurality of base units are formed and a third wafer on which a plurality of spacers are formed, bonding a fourth wafer on which a plurality of transparent members are formed on the third wafer, bonding a plurality of polyhedron light-beam adjusters on the fourth wafer such that one of the plurality of polyhedron light-beam adjusters and the movable mirror unit become a pair, and cutting a wafer layered product of the first to fourth wafers for each area in which the light deflector is formed. The image projector includes the light deflector, and an image is projected by optical scanning.
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公开(公告)号：US11581698B2
公开(公告)日：2023-02-14
申请号：US16818134
申请日：2020-03-13
申请人： Yusuke Ohta , Toshiyuki Ikeoh , Atsushi Sakai
发明人： Yusuke Ohta , Toshiyuki Ikeoh , Atsushi Sakai
IPC分类号： H01S5/02253 , H01S5/183 , H01S5/343 , B25J19/02 , H01S5/42 , G01S17/02 , G01N21/88 , H01S5/02257
摘要： An optical device includes: a substrate having a first surface, and a second surface opposite of the first surface; a plurality of surface emitting laser elements provided on the first surface of the substrate and configured to emit light in a direction intersecting the first surface; a plurality of optical elements disposed on the second surface so as to respectively correspond to the plurality of surface emitting laser elements; and an anti-reflection structure between the substrate and the plurality of optical elements.
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