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21. 发明授权

US5307367A Laser oscillating apparatus 失效
标题翻译：激光振荡装置
公开(公告)号：US5307367A
公开(公告)日：1994-04-26
申请号：US834524
申请日：1992-02-06
申请人： Norio Karube
发明人： Norio Karube
IPC分类号： G02B5/30 , G02B27/28 , H01S3/08 , H01S3/081 , H01S3/086
CPC分类号： H01S3/081 , G02B27/28 , G02B5/3025 , H01S3/08059
摘要： A laser oscillating apparatus equipped with a folded-type laser resonator designed to fold an optical axis by using a reflecting mirror (11) in addition to an output coupling mirror (4) and a rear mirror (10). The rear mirror (10) consists of a roof reflector having a ridge (10a) set at an angle of .pi./4 with respect to a plane generated by a folded optical axis. At this time, the reflectance of the rear mirror (10) is higher in a linearly polarizing component having an electric-field vector parallel to the direction of the ridge (10a) than that in a component having an electric-field vector orthogonally intersecting the ridge. The laser beam in the resonator is linearly polarized in the direction of the ridge (10a) in an optical path running between the rear mirror (10) and the reflecting mirror (11) closest to the rear mirror (10). The linearly polarized beam is reflected by the reflecting mirror (11). The reflecting mirror (11) generates a total .pi./2 phase retardation with respect to the parallel and vertical polarizing components, and accordingly, an emitted beam (13) thus produced is a circularly polarized beam.
摘要翻译： PCT No.PCT / JP91 / 00720 Sec。 371日期：1992年2月6日 102（e）日期1992年2月6日PCT 1991年5月28日PCT PCT。公开号WO91 / 20114 PCT 日本1991年12月26日。一种激光振荡装置，其配备有折叠式激光谐振器，其设计成除了输出耦合镜（4）和后反射镜（10）之外还通过使用反射镜（11）折叠光轴，。后视镜（10）由具有相对于由折叠光轴产生的平面以（π/ 4）的角度设置的脊（10a）的屋顶反射器构成。此时，与具有与脊（10a）的方向平行的电场矢量的直线偏振分量中，后反射镜（10）的反射率高于与具有正交相交的电场矢量的分量岭。谐振器中的激光束在后反射镜（10）和最靠近后反射镜（10）的反射镜（11）之间的光路中沿脊（10a）的方向线性偏振。线偏振光束被反射镜（11）反射。反射镜（11）相对于平行和垂直偏振分量产生总（π）/ 2相位延迟，因此，由此产生的发射光束（13）是圆偏振光束。

22. 发明授权

US5136136A Laser processing apparatus 失效
标题翻译：激光加工设备
公开(公告)号：US5136136A
公开(公告)日：1992-08-04
申请号：US613761
申请日：1990-11-10
申请人： Norio Karube , Takeji Arai , Kuniaki Fukaya
发明人： Norio Karube , Takeji Arai , Kuniaki Fukaya
IPC分类号： B23K26/06
CPC分类号： B23K26/0643 , B23K26/06 , B23K26/0648 , B23K26/0665
摘要： A laser processing apparatus including a laser oscillator, a beam expander, and a light converging system. An output-end-side optical component formed by the beam expander and the light converging system includes one light converging system having composite characteristics of the optical component and the light converging system. Accordingly, the number of lenses used is reduced, the absorption loss of the laser output is lowered, and the number of parts used is reduced. Also disclosed is a laser processing apparatus in which an optical component forming a beam expander is formed partially of an output coupling mirror of the laser oscillator, whereby the number of lenses used is reduced.

23. 发明授权

US5065330A Numerical control system for laser 失效
标题翻译：激光数控系统
公开(公告)号：US5065330A
公开(公告)日：1991-11-12
申请号：US363393
申请日：1989-06-05
申请人： Norio Karube , Mitsuo Manabe
发明人： Norio Karube , Mitsuo Manabe
IPC分类号： B23K26/00 , B23K26/08 , G05B19/414 , H01S3/00 , H01S3/097 , H01S3/10
CPC分类号： B23K26/0853 , G05B19/414 , G05B2219/37275
摘要： A numerical control system for a laser comprises a laser oscillator (1), an electric power supply (3) for driving the laser oscillator, and a computerized numerical control system (CNC) (5). The numerical control system includes sequence control means for controlling a sequence of operation of the laser oscillator, output control means for controlling output conditions of the laser oscillator feedback control means for controlling the feedback of an output from the laser oscillator, and display control means for displaying a condition of the laser oscillator. The laser oscillator (1), the power supply (3), and the computerized numerical control system (5) are coupled together, making the numerical control system for the laser small in size and simple in arrangement.
摘要翻译： PCT No.PCT / JP88 / 00428 Sec。 371日期：1988年11月30日 102（e）1988年11月30日日期PCT提交1988年4月28日PCT公布。出版物WO88 / 08355 日期：1988年11月3日。一种用于激光的数控系统包括激光振荡器（1），用于驱动激光振荡器的电源（3）和计算机化数控系统（CNC）（5）。数字控制系统包括用于控制激光振荡器的操作顺序的顺序控制装置，用于控制激光振荡器反馈控制装置的输出条件的输出控制装置，用于控制来自激光振荡器的输出的反馈;以及显示控制装置，显示激光振荡器的状态。激光振荡器（1），电源（3）和计算机化数控系统（5）耦合在一起，使得激光器的数控系统尺寸小，布置简单。

24. 发明授权

US4977574A Laser oscillator 失效
标题翻译：激光振荡器
公开(公告)号：US4977574A
公开(公告)日：1990-12-11
申请号：US408484
申请日：1989-08-21
申请人： Norio Karube
发明人： Norio Karube
IPC分类号： G02B27/28 , H01S3/08 , H01S3/081
CPC分类号： H01S3/08068 , H01S3/081
摘要： A laser oscillator is provided with a folded laser resonator which includes an output coupling mirror (4), a rear mirror (10) and folding mirrors (11,12). The rear mirror (10) has a maximum reflectivity with respect to a linear polarization component of the laser beam, in which the linear polarization component has an E vector the direction of which is rotated from an incident plane of the nearest folding mirror by .pi./4. The folding mirrors (11,12) function as a whole as a phase retarder imposing a .pi./2 phase delay with respect to parallel and perpendicular polarization components of the laser beam, and accordingly, a circularly polarized laser beam is obtained from the laser oscillator.

25. 发明授权

US4935933A Laser oscillator device 失效
公开(公告)号：US4935933A
公开(公告)日：1990-06-19
申请号：US298745
申请日：1989-01-12
申请人： Norio Karube , Akira Egawa , Mitsuo Manabe
发明人： Norio Karube , Akira Egawa , Mitsuo Manabe
IPC分类号： H01S3/097 , H01S3/0975 , H01S3/134
CPC分类号： H01S3/0975
摘要： A laser oscillator device applies a high-frequency voltage to a plurality of discharge regions (1a, 1b) through a dielectric to produce a high-frequency discharge for laser pumping. The laser oscillator device includes high-frequency power supplies (26a, 26b) for converting a DC power supply into high-frequency power supply outputs, output transformers (22a, 22b) for boosting the high-frequency power supply outputs and transmitting high-frequency electric power to the discharge regions, the output transformers having secondary windings with grounded midpoints, and current detectors (CT1a, CT1b) for detecting currents flowing through discharge tubes. Output currents of the high-frequency power supplies are controlled by feeding back the detected currents. Since the detected currents are not affected by mutual currents between electrodes, alarm conditions due to uncontrollable operation of a feedback loop and damage of parts are prevented from occurring, and stable current control is achieved.

26. 发明授权

US4887272A Laser oscillator device 失效
标题翻译：激光振荡器装置
公开(公告)号：US4887272A
公开(公告)日：1989-12-12
申请号：US295203
申请日：1988-12-20
申请人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
发明人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
IPC分类号： H01S3/097 , H01S3/0975 , H01S3/134
CPC分类号： H01S3/0975
摘要： A laser oscillator device applies a high-frequency voltage to a plurality of discharge regions through a dielectric for producing a high-frequency discharge for laser pumping. The laser oscillator device has current detectors (CT2a, CT2b) for detecting currents flowing from high-frequency power supplies (26a, 26b) into discharge tubes (1). The current detectors are disposed in positions to detect mutual currents between the adjacent discharge tubes. The currents detected by the current detectors (CT2a, CT2b) are used as feedback currents for preventing uncontrollable conditions of the currents due to a coupling current. The laser oscillator device also has a mechanism for preventing interference in the discharge regions.

27. 发明授权

US5440580A Laser discharge tube and electrode manufacturing method 失效
标题翻译：激光放电管和电极的制造方法
公开(公告)号：US5440580A
公开(公告)日：1995-08-08
申请号：US332403
申请日：1994-10-31
申请人： Norio Karube , Yoshiki Fujioka , Mitsuo Manabe
发明人： Norio Karube , Yoshiki Fujioka , Mitsuo Manabe
IPC分类号： H01S3/03 , H01S3/038 , H01S3/0975 , H01S3/097
CPC分类号： H01S3/0388 , H01S3/0387 , H01S3/0975
摘要： A laser discharge tube having electrodes the peeling of which is reduced and a method of manufacturing electrodes of a laser discharge tube by which the peeling of the electrodes is reduced. The electrodes are adhered to the outside periphery of the tube wall of the laser discharge tube. The electrodes contain as components an electric conductive substance, an inorganic binder and boron nitride as a thermal expansion preventing substance for suppressing a coefficient of thermal expansion. When a silica glass tube is used as the laser discharge tube, the laser discharge tube has a coefficient of thermal expansion of +0.5.times.10.sup.-6. When the electrodes are mixed with boron nitride, the electrodes have a coefficient of thermal expansion of +2 to +7.times.10.sup.-6 and the coefficient of thermal expansion of the electrodes can be brought close to the that of the laser discharge tube by mixing boron nitride with the electrodes. Thus, the peeling of the electrodes caused by a difference of the coefficients of thermal expansion can be reduced.
摘要翻译：具有其剥离电极的激光放电管被减少，以及制造电极剥离的激光放电管的电极的制造方法。电极粘附到激光放电管的管壁的外周。这些电极包含导电物质，无机粘合剂和氮化硼作为组分，作为用于抑制热膨胀系数的热膨胀防止物质。当使用石英玻璃管作为激光放电管时，激光放电管的热膨胀系数为+ 0.5×10 -6。当电极与氮化硼混合时，电极的热膨胀系数为+2〜+ 7×10-6，电极的热膨胀系数可以接近于激光放电管的热膨胀系数，通过混合氮化硼与电极。因此，可以降低由热膨胀系数的差异引起的电极的剥离。

28. 发明授权

US5343013A Laser beam machine 失效
标题翻译：激光束机
公开(公告)号：US5343013A
公开(公告)日：1994-08-30
申请号：US860520
申请日：1992-06-18
申请人： Norio Karube , Yasuyuki Morita
发明人： Norio Karube , Yasuyuki Morita
IPC分类号： B23K26/06 , B23K26/08 , H01S3/11 , B23K26/00
CPC分类号： B23K26/0604 , B23K26/06 , B23K26/0626 , B23K26/0643 , B23K26/0665
摘要： A laser beam machine for carrying out a machining operation by converging a laser beam emitted from a laser resonator and irradiating the converged laser beam onto a workpiece. A beam interceptor (21) is arranged across a light path extending from a total reflection mirror (2) of the laser resonator (1) to a surface of the workpiece (5) and has a small inertia, and the position thereof is controlled at a high speed to permit the passage of the laser beam and to intercept the laser beam. The beam interceptor (21) is controlled in such a manner that the laser beam is allowed to pass during a full-scale discharge and is intercepted during a seed discharge. Accordingly, even if a seed discharge exists while a high-reflectivity material, for example, is machined, a laser oscillation of a composite resonator including the workpiece (5) can be reliably prevented.
摘要翻译： PCT No.PCT / JP91 / 01495 Sec。 371日期：1992年6月18日 102（e）日期1992年6月18日PCT 1991年10月31日PCT PCT。出版物WO92 / 08570 日期：1992年5月29日。一种激光束机，用于通过会聚从激光谐振器发射的激光束并将会聚的激光束照射到工件上进行加工操作。光束拦截器（21）跨越从激光谐振器（1）的全反射镜（2）延伸到工件（5）的表面的光路，并且具有小的惯性，并且其位置被控制在高速以允许激光束通过并拦截激光束。光束拦截器（21）的控制方式是允许激光束在满刻度放电期间通过，并且在种子放电期间被截取。因此，即使在例如加工高反射率材料的同时存在种子放电，也可以可靠地防止包括工件（5）的复合谐振器的激光振荡。

29. 发明授权

US5326957A Apparatus for and method of welding surface-treated metallic workpieces 失效
标题翻译：表面处理金属工件的焊接和焊接方法
公开(公告)号：US5326957A
公开(公告)日：1994-07-05
申请号：US938177
申请日：1992-12-04
申请人： Norio Karube , Yoshinori Nakata , Atsushi Mori , Etsuo Yamazaki
发明人： Norio Karube , Yoshinori Nakata , Atsushi Mori , Etsuo Yamazaki
IPC分类号： B23K9/16 , B23K9/167 , B23K9/23 , B23K10/02
CPC分类号： B23K9/23 , B23K9/167
摘要： Surface-treated metallic workpieces such as zinc-plated steel plates are welded with high quality while they are being held in intimate contact with each other. An auxiliary gas including an oxygen gas is ejected from a space (7) around an electrode (1) through a nozzle (8) to a welding point (9) on overlapping surface-treated metallic workpieces such as zinc-plated steel plates (3a, 3b). When the zinc-plated steel plates (3a, 3b) are welded in the atmosphere of the auxiliary gas, the surface layers of zinc and oxygen react with each other, producing a solid oxide such as zinc oxide or zinc peroxide. Therefore, a gas such as a zinc vapor is prevented from being produced between the overlapping zinc-plated steel plates (3a, 3b). The welded joint is of high quality without blowholes which would otherwise blow away molten steel.
摘要翻译： PCT No.PCT / JP92 / 00517 Sec。 371日期1992年12月4日第 102（e）日期1992年12月4日PCT提交1992年4月21日PCT公布。出版物WO92 / 19412 PCT 日期：1992年11月12日。表面处理的金属工件如镀锌钢板在保持彼此紧密接触的同时以高品质焊接。包括氧气的辅助气体从电极（1）周围的空间（7）通过喷嘴（8）喷射到重叠的表面处理金属工件（例如镀锌钢板（3a））上的焊接点（9），3b）。当在辅助气体的气氛中焊接镀锌钢板（3a，3b）时，锌和氧的表面层相互反应，生成氧化锌或过氧化锌等固体氧化物。因此，防止在重叠的镀锌钢板（3a，3b）之间产生诸如锌蒸气的气体。焊接接头质量高，无气孔，否则会吹走钢水。

30. 发明授权

US5237150A Method of cutting workpiece with laser beam 失效
标题翻译：用激光切割工件的方法
公开(公告)号：US5237150A
公开(公告)日：1993-08-17
申请号：US761802
申请日：1991-09-16
申请人： Norio Karube
发明人： Norio Karube
IPC分类号： B23K26/06 , B23K26/073 , B23K26/14 , B23K26/36 , H01S3/00 , H01S3/101
CPC分类号： B23K26/073 , B23K26/0643 , B23K26/0648 , B23K26/0665 , B23K26/1435 , B23K26/1476 , B23K26/36
摘要： A thick workpiece is cut by a laser beam of high output power. A laser beam dominantly in a ring mode, with a central region thereof being hollow, is applied to the workpiece to cut the workpiece. The laser beam dominantly in the ring mode is effective to reduce optical distortion due to laser beam absorption in a central region of a focussing optical system, e.g., a focussing lens, thereby preventing focussing characteristics from being degraded. The focussing optical system may system may be cooled by a gas applied to its surface. Alternatively, a KCL (potassium chloride) lens may be used as the focussing optical system.
摘要翻译： PCT No.CPC / JP91 / 00022 Sec。 371日期1991年9月16日 102（e）1991年9月16日PCT 1991年1月11日PCT PCT。公开号WO91 / 10533 日期：1991年7月25日。厚工件由高输出功率的激光束切割。主要以环形模式的激光束，其中心区域是中空的，被施加到工件上以切割工件。主要处于环形模式的激光束有效地减少由于聚焦光学系统（例如聚焦透镜）的中心区域中的激光束吸收引起的光学失真，从而防止聚焦特性降低。聚焦光学系统可以通过施加到其表面的气体来冷却系统。或者，可以使用KCL（氯化钾）透镜作为聚焦光学系统。

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