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公开(公告)号：US09662744B2
公开(公告)日：2017-05-30
申请号：US14254184
申请日：2014-04-16
发明人： Itaru Chida , Katsunori Shiihara , Yasuaki Tokunaga , Takeshi Maehara , Keiichi Hirota , Hiroya Ichikawa
CPC分类号： B23K26/032 , B23K26/707
摘要： A laser irradiation device in which laser light is adjusted to create a laser beam, including a protective glass window arranged in an emission region that emits the laser beam; a reflection mechanism that passes the laser beam and reflects visible light; a wavelength-dependent optical screening mechanism that cuts off light of a wavelength region other than visible light from the light that is reflected by the reflection mechanism; image pickup camera configured to capture the visible light reflected with the reflection optical element; and an image adjustment lens unit that adjusts an image in the visible light that is input from the wavelength-dependent optical screening mechanism. The wavelength-dependent optical screening mechanism is provided between the reflection optical element and the image camera.
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公开(公告)号：US10226838B2
公开(公告)日：2019-03-12
申请号：US15080866
申请日：2016-03-25
发明人： Kota Nomura , Itaru Chida , Katsunori Shiihara , Hiroya Ichikawa
IPC分类号： B23K26/146 , B23K26/356 , G02B6/36 , G02B6/32 , B23K26/352 , B23K26/00 , B23K26/06 , G02B6/42
摘要： An embodiment is to provide a laser light irradiation apparatus and a laser peening treatment method, by which even a member to be processed, existing in a narrow portion, can be easily processed by laser peening. The laser light irradiation apparatus 1 according to the embodiment includes: an optical fiber 2 through which laser light is guided; a condensing lens 3 that is placed on one end of the optical fiber, the condensing lens and the optical fiber defining the light path of the laser light; a guide 4 that retains the optical fiber; and a movement mechanism 5 for changing the position of the optical fiber, wherein the light path of the laser light guided through the optical fiber is emitted at an angle changed to more than 0° and less than 90° with respect to the central axis of the optical fiber by the condensing lens.
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公开(公告)号：US20180066336A1
公开(公告)日：2018-03-08
申请号：US15695655
申请日：2017-09-05
发明人： Tetsuo Sakai , Hiroshi Ohno , Itaru Chida , Kota Nomura
IPC分类号： C21D10/00 , B23K26/00 , B23K26/064 , B23K26/146
CPC分类号： C21D10/005 , B23K26/064 , B23K26/0643 , B23K26/106 , B23K26/146 , B23K26/356
摘要： According to one embodiment, a laser processing device includes a light irradiation section, and a mirror. The light irradiation section is adapted to emit a laser beam from a light source from a tip. The mirror is opposed to the tip of the light irradiation section. The mirror is adapted to reflect the laser beam emitted from the light irradiation section with an aspherical reflecting surface. An angle formed between the laser beam transmitted from the light irradiation section to the mirror and the laser beam reflected by the mirror is equal to or larger than 90 degrees.
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公开(公告)号：US10329641B2
公开(公告)日：2019-06-25
申请号：US14940474
申请日：2015-11-13
发明人： Kota Nomura , Itaru Chida , Katsunori Shiihara , Hiroya Ichikawa
IPC分类号： B23K26/38 , C21D10/00 , B23K26/06 , B23K26/10 , B23K26/146 , B23K26/0622 , B23K26/18 , C21D7/04
摘要： One embodiment of the laser processing apparatus is for surface treatment by supplying liquid to a surface of the target member and irradiating pulsed laser light to the surface of the target member via the liquid. The apparatus includes a laser oscillator and a liquid supply. The laser oscillator irradiates the laser light to the surface through the liquid via an optical window. The liquid supply is configured to supply the liquid to the surface of the target member via a flow path passing on an outer surface of the optical window. When the liquid is in contact with a laser light emission surface of the optical window, the laser light emission surface transmits the laser light. When the liquid is not in contact with the laser light emission surface, the laser light emission surface reflects the laser light.
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公开(公告)号：US10946481B2
公开(公告)日：2021-03-16
申请号：US15696909
申请日：2017-09-06
发明人： Hiroshi Ohno , Kota Nomura , Tetsuo Sakai , Itaru Chida
摘要： According to one embodiment, a laser processing device includes a light irradiation section, and an optical element. The optical element includes a first transparent member provided via a gap with a tip of the light irradiation section, and a second transparent member. The first transparent member includes a first surface opposed to the tip of the light irradiation section, and a second surface provided so as to be connected to the first surface. The second transparent member includes a flat surface and a convex surface, the flat surface being provided so as to be opposed to the second surface of the first transparent member, the light passed through the first transparent member passing through the convex surface. An optical axis of the laser beam passing through the first surface and an optical axis passing through the convex surface are different from each other.
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