公开(公告)号：JPH0481654A

公开(公告)日：1992-03-16

申请号：JP19555590

申请日：1990-07-24

Applicant: HAMAMATSU PHOTONICS KK

Inventor： MATSUMOTO OSAMU

IPC: G01N29/00 ,  G01N29/04

Abstract: PURPOSE:To obtain the internal data of an object to be measured within a real time by irradiating the first and second mirrors mounted on the surface of the object to be measured subjected to ultrasonic vibration with beam through a beam splitter and allowing reflected beams to interfere with each other. CONSTITUTION:When ultrasonic vibration is applied to an object 12 to be measured through a transducer 14, in such a case that there is a flaw in the object 12 to be measured, a propagated ultrasonic wave scatters at the part of the flaw to generate diffraction and the fine unevenness corresponding to the internal data of the object 12 to be measured is generated on the surface of the first mirror 18. The laser beam reflected by a beam splitter 22 to transmit through a glass plate 20 is scattered by the fine unevenness formed to the first mirror 18 to transmit through the beam splitter 22 to be interferred with the laser beam reflected by the second mirror 25 and the interference image is formed on an image sensor 28. By this method, the internal data of the object to be measured is observed within a real time.

公开(公告)号：JPH0347754B2

公开(公告)日：1991-07-22

申请号：JP28127086

申请日：1986-11-26

Applicant: HAMAMATSU PHOTONICS KK

Inventor： URA TADAHISA ,  SUZUKI HIDEO ,  OOSUMI YASUTSUGU ,  MORITA NOBUHIRO ,  MATSUMOTO OSAMU ,  KOBAYASHI JUJI ,  OOHAYASHI YASUSHI

IPC: H01S3/108 ,  G02F1/39

公开(公告)号：JPH0322071B2

公开(公告)日：1991-03-26

申请号：JP1754687

申请日：1987-01-28

Applicant: HAMAMATSU PHOTONICS KK

Inventor： KOBAYASHI JUJI ,  OOHAYASHI YASUSHI ,  SUZUKI HIDEO ,  OOSUMI YASUTSUGU ,  MORITA NOBUHIRO ,  MATSUMOTO OSAMU

IPC: H01S3/10 ,  G02F1/39 ,  H01S3/109

公开(公告)号：JPH02126242A

公开(公告)日：1990-05-15

申请号：JP28005388

申请日：1988-11-05

Applicant: HAMAMATSU PHOTONICS KK

Inventor： MATSUMOTO OSAMU

IPC: G02F1/37 ,  G02F1/35

Abstract: PURPOSE:To improve the conversion efficiency of a 3rd higher harmonic by arranging a fundamental wave laser oscillator and 1st and 2nd nonlinear optical crystal materials between 1st and 2nd mirrors and also arranging 1st and 2nd nonlinear optical crystal materials between 3rd and 4th mirrors. CONSTITUTION:Laser light as a fundamental wave emitted by a fundamental wave laser oscillator 17 travels reciprocally in a fundamental wave laser resonator 15 formed by arranging the 1st nonlinear optical crystal 18 and 2nd nonlinear optical crystal 19 between the 1st and 2nd mirrors 11 and 12 which reflect the fundamental wave totally and is converted into a 2nd higher harmonic by the 1st nonlinear optical crystal 18 and also converted into the 3rd higher harmonic by the 2nd nonlinear optical crystal 19. The 2nd and 3rd converted higher harmonics travel reciprocally in a higher harmonic laser resonator 16 formed by arranging the 1st and 2nd nonlinear optical crystal materials 18 and 19 between the 3rd mirror 13 which reflects the 2nd higher harmonic totally and the 4th mirror 14 which reflects the 2nd higher harmonic totally and transmits the 3rd higher harmonic and higher harmonic totally and transmits the 3rd higher harmonic and only the 3rd higher harmonic is transmitted through the 4th mirror 14 and outputted as laser light, so that the 3rd higher harmonic can be converted with high efficiency.

公开(公告)号：JPS63133687A

公开(公告)日：1988-06-06

申请号：JP28127086

申请日：1986-11-26

Applicant: HAMAMATSU PHOTONICS KK

Inventor： URA TADAHISA ,  SUZUKI HIDEO ,  OSUMI YASUTSUGU ,  MORITA NOBUHIRO ,  MATSUMOTO OSAMU ,  KOBAYASHI YUJI ,  OBAYASHI YASUSHI

IPC: H01S3/108 ,  G02F1/39

Abstract: PURPOSE:To prevent displacement of output laser beam position by changing an angle formed by the optical axis of laser beam and optical axis through formation of curved external surface of window for inputting or outputting laser beam of device including an arc centered to the intersecting point of the optical axis of nonlinear optical crystal and optical axis of laser beam. CONSTITUTION:A nonlinear optical crystal 11 and a case 12 for sealing the crystal 11 are formed integrally and wavelength of laser beam 25a emitted is changed by changing an angle formed by the optical axis 26 of laser beam 25 incident to the non-linear optical crystal 11 and optical axis of the nonlinear optical crystal 11. In this waveform variable laser device, the external circumference of windows 21, 22 for inputting and outputting laser beams 25, 25a of case 12 is formed as the curved surface including the arc centered at the intersecting point of the optical axis of nonlinear optical crystal 11 and optical axis 26 of laser beam 25. The external circumference of windows 21, 22 for inputting and outputting laser beams 25, 25a of the case 12 is formed, for example, in cylindrical having the center axis of the rotating axis 13 of case 12, or formed as the spherical surface centered on the intersecting point of the rotating axis 13 of case 12 and the optical axis 26 of the laser beam 25.

公开(公告)号：JP2007216241A

公开(公告)日：2007-08-30

申请号：JP2006037079

申请日：2006-02-14

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： MATSUMOTO OSAMU ,  KAWASHIMA TOSHIYUKI ,  YASUHARA AKIRA ,  SEKINE TAKASHI ,  KURITA TAKASHI ,  IKEGAWA YASUSHI

IPC: B23K26/00 ,  B23K26/08 ,  B23K26/12 ,  C21D7/04

Abstract: PROBLEM TO BE SOLVED: To provide a laser beam peening device and a laser beam peening method capable of performing the consistent peening on a workpiece placed in a liquid. SOLUTION: The laser beam peening device 1 has a guide body 6 with its incident surface 6b being arranged so as to be in contact with the atmosphere, and its light emitting surface 6c being arranged so as to be in contact with a liquid 2. By guiding laser beams L via the guide body 6, a surface of a workpiece P can be irradiated with the laser beams L without directly passing the laser beam through a liquid surface 2a of the liquid 2 with the workpiece P arranged therein. Thus, the laser beam peening device 1 is capable of irradiating the laser beams L on the workpiece P without being affected by the flicker of the liquid surface 2a or the reflection by the liquid surface 2a, suppressing any fluctuation of the irradiation position and the irradiation intensity of the laser beams L with respect to the workpiece P arranged in the liquid 2, and performing the consistent peening. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够对放置在液体中的工件执行一致的喷丸处理的激光束喷丸装置和激光束喷丸方法。 解决方案：激光束喷丸装置1具有引导体6，其入射面6b被布置成与大气接触，并且其发光表面6c布置成与液体接触 通过引导体6引导激光束L，可以用激光束L照射工件P的表面，而不会使激光束直接通过布置在其中的工件P的液体2的液面2a。 因此，激光束击锤装置1能够在不影响液面2a的闪烁或液面2a的反射的情况下照射工件P上的激光束L，抑制照射位置和照射的任何波动 激光束L相对于布置在液体2中的工件P的强度，并且执行一致的喷丸处理。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007214289A

公开(公告)日：2007-08-23

申请号：JP2006031589

申请日：2006-02-08

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： SEKINE TAKASHI ,  YASUHARA AKIRA ,  KAWASHIMA TOSHIYUKI ,  MATSUMOTO OSAMU ,  KURITA TAKASHI ,  IKEGAWA YASUSHI ,  SUGA HIROBUMI

IPC: H01S3/106

Abstract: PROBLEM TO BE SOLVED: To provide a laser device which can reduce the degradation of the quality of a beam.
SOLUTION: The laser device includes (a) a spatial filter which is arranged in a revolving optical path regulated by a plurality of reflection mirrors and includes a solid-state laser amplification medium, a pair of lens, and a pin hole arranged between the lenses; (b) a monitor to acquire the beam quality information on a laser light in the revolving optical path; (c) a first optical path length changing means to change the length of a first optical path between the lens and the pin hole in the spatial filter, on the basis of the beam quality information; and (d) a second optical path length changing means to change the length of a second optical path other than the first optical path in the revolving optical path, according to the changed quantity of the length of the first optical path by the first optical path length changing means.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够降低光束质量劣化的激光装置。 解决方案：激光装置包括（a）空间滤光器，其布置在由多个反射镜调节的旋转光路中，并且包括固态激光放大介质，一对透镜和布置在该孔中的针孔 透镜之间; （b）监视器，用于获取关于旋转光路中的激光的光束质量信息; （c）第一光路长度改变装置，用于根据光束质量信息改变空间滤光器中的透镜和针孔之间的第一光路的长度; 以及（d）第二光路长度改变装置，用于根据由第一光路的第一光路的长度的改变量改变旋转光路中除了第一光路之外的第二光路的长度 长度变化手段。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007059471A

公开(公告)日：2007-03-08

申请号：JP2005240067

申请日：2005-08-22

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： MATSUMOTO OSAMU ,  KAWASHIMA TOSHIYUKI ,  YASUHARA AKIRA ,  SEKINE TAKASHI ,  KURITA TAKASHI ,  IKEGAWA YASUSHI

IPC: H01S3/10

Abstract: PROBLEM TO BE SOLVED: To provide am optical amplifier which can realize efficient outputting of a light, as well as an MOPA laser device. SOLUTION: The MOPA laser device 2 is provided with a laser light source 31, an optical amplifier 32, a beam expander 33, an optical mask 34, and an optical amplifier 1A. A light output from the laser light source 31 is input into the optical amplifier 1A via the optical amplifier 32, the beam expander 33, and the optical mask 34. The light input to the optical amplifier 1A is amplified by a first path in this order of optical amplification modules A 1 and A 2 , and it is amplified by a second path in this order of optical amplification modules A 1 and A 2 . Then, the light is amplified by a third path in the reverse direction of optical amplification modules A 2 and A 1 as a reverse route to the second path, it is amplified by a fourth path in the reverse direction of optical amplification modules A 2 and A 1 as a reverse route to the first path, and then it is output. The light is transmitted through different routes in slab-type solid laser media included respectively in the two optical amplification modules A 1 and A 2 . COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供可以实现光的有效输出的光学放大器以及MOPA激光器件。 解决方案：MOPA激光装置2设置有激光光源31，光放大器32，光束扩展器33，光掩模34和光放大器1A。 来自激光光源31的光输出经由光放大器32，光束扩展器33和光掩模34被输入到光放大器1A中。输入到光放大器1A的光以该顺序的第一路径被放大 的光放大模块A 1 和A 2 ，并且按照光放大模块A 1和A的顺序通过第二路径放大 2 。 然后，通过光放大模块A 2 和A 1 1 和A 2 中的板状固体激光介质中的不同路径传输。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006196882A

公开(公告)日：2006-07-27

申请号：JP2005360657

申请日：2005-12-14

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： MATSUMOTO OSAMU ,  KAWASHIMA TOSHIYUKI ,  YASUHARA AKIRA ,  SEKINE TAKASHI ,  KURITA TAKASHI ,  IKEGAWA YASUSHI

IPC: H01S3/10

Abstract: PROBLEM TO BE SOLVED: To provide an optical amplifier capable of equalizing the temperature distribution of a solid-state laser medium of a slab profile using a simple/small structure. SOLUTION: An optical amplifier 17 comprises a solid-state laser medium 31, excited light sources 32a and 32b, light absorbers 33c and 33d, heating light sources 34ac, 34ad, 34bc, and 34bd, rectifier objects 35c and 35d, a medium housing 36, and a controller 37. The active element of the solid-state laser medium 31 is excited when irradiated with excitation light outputted from the excited light sources 32a and 32b. The light absorbers 33c and 33d is provided in touch with the side surface of the solid-state laser medium 31. The light absorbers 33c and 33d absorb heating light and generate heat when irradiated with the heating light outputted from the heating light sources 34ac, 34bc, 34ad, and 34bd. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够使用简单/小型结构来均衡平板型材的固体激光介质的温度分布的光学放大器。 解决方案：光放大器17包括固体激光介质31，激发光源32a和32b，光吸收器33c和33d，加热光源34ac，34ad，34bc和34bd，整流对象35c和35d， 介质壳体36和控制器37.当从激发光源32a和32b输出的激发光照射时，固态激光介质31的有源元件被激发。 吸光体33c，33d与固体激光介质31的侧面相接触地设置。吸光体33c，33d在从加热光源34ac，34bc输出的加热光照射时吸收加热光而产生热量 ，34ad和34bd。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JPH11189472A

公开(公告)日：1999-07-13

申请号：JP35742997

申请日：1997-12-25

Applicant: HAMAMATSU PHOTONICS KK

Inventor： KITAHARA TADASHI ,  SUZUKI TAKASHI ,  ICHIKAWA NORIO ,  MATSUMOTO OSAMU

IPC: C04B35/56 ,  C01B31/30

Abstract: PROBLEM TO BE SOLVED: To provide a method for synthesizing carbon nitride capable of efficiently forming carbon nitride. SOLUTION: This method for synthesizing carbon nitride comprises irradiating a target 11 with a laser beam to perform laser ablation and to synthesize carbon nitride. A solid substance containing an ammonium compound and a carbonaceous material is used as the target 11. Molecules of formed impurities are reduced by the laser ablation of the solid substance containing the ammonium compound and the carbonaceous material.