-
1.发明公开公开(公告)号：US20240128705A1
公开(公告)日：2024-04-18
申请号：US17767920
申请日：2019-11-11
CPC分类号： H01S3/10061 , G03F7/70025 , H01S3/036 , H01S3/0816 , H01S3/2232 , H01S2302/00
摘要： A gas laser amplifier includes a housing, discharge electrode pairs, and an optical resonator. The housing includes an entrance window that allows entry of a first laser beam from outside and an exit window that allows exit of the first laser beam amplified. Each of the discharge electrode pairs excites a laser gas supplied between discharge electrodes facing each other in the housing. The optical resonator causes a second laser beam to oscillate with a gain of the excited laser gas in a non-incident state where the first laser beam from outside the housing does not enter the housing through the entrance window. In an incident state where the first laser beam enters the housing through the entrance window, the optical resonator suspends the oscillation of the second laser beam.
-
公开(公告)号：US20180175590A1
公开(公告)日：2018-06-21
申请号：US15579780
申请日：2015-12-25
发明人： Tatsuya YAMAMOTO , Daiji MORITA , Masato KAWASAKI , Kazuki KUBA , Junichi NISHIMAE , Tetsuo KOJIMA
CPC分类号： H01S5/146 , H01S3/08027 , H01S3/0805 , H01S5/0071 , H01S5/0078 , H01S5/02288 , H01S5/141 , H01S5/143 , H01S5/22 , H01S5/4031 , H01S5/4062 , H01S5/4068 , H01S5/4087
摘要： A semiconductor laser device includes: a semiconductor laser bar to output a plurality of beams with different wavelengths from a continuous light-emitting region; a light-condensing optical system to condense the beams; a wavelength-dispersive optical element having a wavelength dispersing function; an optical filter in which a wavelength of a beam that passes therethrough differs periodically; an aperture located on an optical path of the beams superimposed on an identical axis; and a partially reflecting mirror. A totally reflecting mirror is formed on a back side of the semiconductor laser bar, and wavelengths of a plurality of beams with different wavelengths reflected by the totally reflecting mirror and output from the semiconductor laser bar are respectively identical to wavelengths of beams that pass through the optical filter.
-
公开(公告)号：US20230051665A1
公开(公告)日：2023-02-16
申请号：US17792715
申请日：2020-03-16
摘要： A laser amplification device includes a laser oscillator that includes a first laser active medium including a mixed gas containing carbon dioxide gas and emits pulsed laser light with the full width at half maximum of between 15 ns to 200 ns, and a laser amplifier that includes a second laser active medium including a mixed gas containing carbon dioxide gas through which the pulsed laser light emitted from the laser oscillator passes to be shortened to pulsed laser light with the full width at half maximum of between 5 ns and 30 ns to be output.
-
公开(公告)号：US20220094129A1
公开(公告)日：2022-03-24
申请号：US17439815
申请日：2019-05-17
摘要： A gas laser device includes a shielding plate that is a first shielding member, and a shielding plate that is a second shielding member. The first shielding member includes a first opening, and a second opening. A laser beam that is to be propagated to discharge regions passes through the first opening. The laser beam that has taken a round trip through the discharge regions after passing through the first opening passes through the second opening. The second shielding plate faces the first shielding member the discharge regions located therebetween. The shielding plate includes an opening that is a third opening. The laser beam that has been propagated through the first opening and the discharge regions, and the laser beam that is to be propagated to the second opening through the discharge regions pass through the third opening. A plane shape of the third opening includes a rectilinear segment.
-
公开(公告)号：US20210318493A1
公开(公告)日：2021-10-14
申请号：US17273319
申请日：2019-09-13
发明人： Yoko INOUE , Masato KAWASAKI , Tatsuya YAMAMOTO , Kazuki KUBA , Susumu NODA
摘要： A multiplexing optical system includes a light source, a lens and a lens array. The light source includes a plurality of light emitting elements of surface emitting lasers. The lens is configured to change and condense optical paths of laser light beams emitted from the light emitting elements. The lens array includes a plurality of lens regions arrayed so as to correspond to respective optical paths of the laser light beams changed by the lens, and is configured to condense the laser light beams by the lens regions to form a multiplexed beam.
-
公开(公告)号：US20190255649A1
公开(公告)日：2019-08-22
申请号：US16347592
申请日：2017-09-26
IPC分类号： B23K26/06 , B23K26/073 , B23K26/0622
摘要： A laser machining beam method is a method that is carried out by a laser beam machine including a laser oscillator that is a first laser oscillator which emits a pulse of a laser beam that is a first laser beam, and a laser oscillator that is a second laser oscillator which emits a pulse of a laser beam that is a second laser beam differing in wavelength or pulse width from the first laser beam. In the laser beam machining method, the first laser beam and the second laser beam are caused to alternate in irradiating a workpiece.
-
公开(公告)号：US20160238839A1
公开(公告)日：2016-08-18
申请号：US15139460
申请日：2016-04-27
发明人： Naoyuki NAKAMURA , Tatsuya YAMAMOTO , Junichi NISHIMAE , Shuichi FUJIKAWA , Masaki SEGUCHI , Akinori NISHIO , Hiroyuki MURAI , Kenji SARUTA
CPC分类号： G02B27/0031 , B01J19/121 , B23K26/04 , B23K26/0643 , B23K26/0892 , G02B26/00
摘要： A laser processing device including: a laser oscillator; a processing table; a transmission optical system for transmitting laser light emitted from the laser oscillator to the processing table; a processing head for condensing and radiating the laser light transmitted via the transmission optical system to an object to be processed; a moving mechanism for changing a relative position between the object to be processed and the laser light to be radiated to the object to be processed; and a variable curvature spherical mirror. The transmission optical system includes a reflective beam expander mechanism for collimating and magnifying the laser light from the laser oscillator. The reflective beam expander mechanism includes a spherical mirror and a concave mirror having different curvatures in two orthogonal axes.
-
公开(公告)号：US20210391683A1
公开(公告)日：2021-12-16
申请号：US17281579
申请日：2018-10-10
摘要： A laser device includes: a first mirror and a second mirror that cause resonance of a plurality of beams having different wavelengths from one another; a diffraction grating that causes the beams that are incident from the first mirror with directions of beam central axes being different from one another to travel to the second mirror while aligning the beam central axes with one another, and causes the beams that are incident from the second mirror with the beam central axes being aligned with one another to travel to the first mirror while causing the directions of the beam central axes to be different from one another; and a housing unit housing a laser medium that is a medium through which the beams traveling between the first mirror and the diffraction grating pass, and has a discrete gain spectrum in which a peak occurs at each wavelength of the beams.
-
公开(公告)号：US20190193197A1
公开(公告)日：2019-06-27
申请号：US16323916
申请日：2017-09-05
IPC分类号： B23K26/064 , B23K26/082
CPC分类号： B23K26/064 , B23K26/082 , G02B26/08
摘要： A laser machining apparatus includes: a laser oscillator to emit a laser beam; a focusing lens to irradiate a workpiece with the laser beam; a focus position control mechanism disposed between the laser oscillator and the focusing lens and disposed on the optical path of the laser beam and that controls the divergence angle of the laser beam and the incident diameter of the laser beam incident on the focusing lens; a laser beam deflector to deflect the laser beam before the laser beam is incident on the focusing lens; and an emitting angle control mechanism to control the emitting angle of the laser beam that exits from the focusing lens after being deflected by the laser beam deflector.
-
公开(公告)号：US20180348451A1
公开(公告)日：2018-12-06
申请号：US15570856
申请日：2016-04-07
发明人： Tatsuya YAMAMOTO , Kazuki KUBA , Masato KAWASAKI , Yoko INOUE , Tetsuo KOJIMA , Junichi NISHIMAE , Susumu NODA
CPC分类号： G02B6/42 , G02B6/4206 , G02B6/425 , H01S5/005 , H01S5/02284 , H01S5/105 , H01S5/18 , H01S5/4012 , H01S5/42
摘要： A laser module includes: a photonic crystal surface-emitting laser element; a collimating lens array for producing a parallel optical beam; a condenser lens for condensing the optical beam; and an optical fiber which receives the optical beam on one end and transmits the optical beam to the outside. In the collimating lens array, an aperture portion corresponding to a collimating lens allows passage of the optical beam with an energy of not less than 94.0% and not more than 99.5% with respect to 100% of the energy of the optical beam incident on the collimating lens array.
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.019 秒)
