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1. 发明授权

US5570384A Laser processing apparatus with beam mode control 失效
标题翻译：具有光束模式控制的激光加工设备
公开(公告)号：US5570384A
公开(公告)日：1996-10-29
申请号：US181062
申请日：1994-01-14
申请人： Satoshi Nishida , Masato Matsubara , Akihiro Otani
发明人： Satoshi Nishida , Masato Matsubara , Akihiro Otani
IPC分类号： B23K26/00 , B23K26/06 , B23K26/073 , B23K26/42 , H01S3/098
CPC分类号： B23K26/032 , B23K26/034 , B23K26/06 , B23K26/064 , B23K26/0643 , B23K26/0648 , B23K26/0665 , B23K26/123 , B23K26/1436 , B23K26/702
摘要： A laser processing apparatus which makes it possible to select a laser beam mode always optimally suited to processing of a workpiece on the basis of a change in the focusing characteristic of each mode and the amount of movement of the beam's focal point with respect to a change in a laser output value. The laser processing apparatus includes a laser oscillator capable of changing the beam mode of its laser beam, and a processing table, all controlled by a controller which operates to change the beam mode of the oscillator in correspondence with a laser output during processing.
摘要翻译：一种激光加工装置，其能够基于每种模式的聚焦特性的变化和光束的焦点相对于变化的移动量，选择总是最适合于加工工件的激光束模式在激光输出值。激光加工装置包括能够改变其激光束的光束模式的激光振荡器，以及处理表，全部由控制器控制，该控制器在处理期间与激光输出对应地改变振荡器的波束模式。

2. 发明授权

US5586139A Laser system 失效
标题翻译：激光系统
公开(公告)号：US5586139A
公开(公告)日：1996-12-17
申请号：US525198
申请日：1995-09-08
申请人： Yushi Takenaka , Masaki Kuzumoto , Kenji Yoshizawa , Takashi Yamamoto , Masato Matsubara , Junichi Nishimae , Koji Yasui , Akihiro Otani
发明人： Yushi Takenaka , Masaki Kuzumoto , Kenji Yoshizawa , Takashi Yamamoto , Masato Matsubara , Junichi Nishimae , Koji Yasui , Akihiro Otani
IPC分类号： B23K26/06 , H01S3/036 , H01S3/06 , H01S3/07 , H01S3/08 , H01S3/0975 , H01S3/098 , H01S3/13 , H01S3/23 , H01S3/139
CPC分类号： B23K26/0608 , B23K26/06 , B23K26/064 , B23K26/0643 , B23K26/0648 , B23K26/0665 , B23K26/123 , H01S3/08059 , H01S3/036 , H01S3/076 , H01S3/08068 , H01S3/0975 , H01S3/2366
摘要： A laser system wherein, in order that a high-output and high-quality single mode of a cross sectional area larger than the beam diameter determined by the construction of a resonator can be obtained stably, although this has heretofore been impossible, there is used a coupling mirror provided with a partial reflection film and an antireflecting film, a laser beam mode is selected using the partial reflection film, a phase difference between laser beam portions caused by a difference in construction between the partial reflection film and the antireflecting film is compensated using a phase difference compensating means, and there is formed an aperture whose diameter is set to a value of not larger than four times the diameter of the partial reflection film.
摘要翻译：一种激光系统，其中为了稳定地获得横截面积大于通过谐振器结构确定的光束直径的高输出和高质量的单一模式，尽管迄今为止已经不可能使用设置有部分反射膜和抗反射膜的耦合镜，使用部分反射膜选择激光束模式，补偿由部分反射膜和抗反射膜之间的结构差引起的激光束部分之间的相位差使用相位差补偿装置，并且形成直径设定为不大于部分反射膜的直径的四倍的孔径。

3. 发明授权

US5506858A Laser system with transverse mode selecting output coupler 失效
标题翻译：激光系统，横向选择输出耦合器
公开(公告)号：US5506858A
公开(公告)日：1996-04-09
申请号：US121347
申请日：1993-09-15
申请人： Yushi Takenaka , Masaki Kuzumoto , Kenji Yoshizawa , Takashi Yamamoto , Masato Matsubara , Junichi Nishimae , Koji Yasui , Akihiro Otani
发明人： Yushi Takenaka , Masaki Kuzumoto , Kenji Yoshizawa , Takashi Yamamoto , Masato Matsubara , Junichi Nishimae , Koji Yasui , Akihiro Otani
IPC分类号： B23K26/06 , H01S3/036 , H01S3/06 , H01S3/07 , H01S3/08 , H01S3/0975 , H01S3/098 , H01S3/13 , H01S3/23 , H01S3/139
CPC分类号： B23K26/0608 , B23K26/06 , B23K26/064 , B23K26/0643 , B23K26/0648 , B23K26/0665 , B23K26/123 , H01S3/08059 , H01S3/036 , H01S3/076 , H01S3/08068 , H01S3/0975 , H01S3/2366
摘要： A laser system wherein, in order that a high-output and high-quality single mode of a cross sectional area larger than the beam diameter determined by the construction of a resonator can be obtained stably, although this has heretofore been impossible, there is used a coupling mirror provided with a partial reflection film and an antireflecting film, a laser beam mode is selected using the partial reflection film, a phase difference between laser beam portions caused by a difference in construction between the partial reflection film and the antireflecting film is compensated using a phase difference compensating apparatus, and there is formed an aperture whose diameter is set to a value of not larger than four times the diameter of the partial reflection film.
摘要翻译：一种激光系统，其中为了稳定地获得横截面积大于通过谐振器结构确定的光束直径的高输出和高质量的单一模式，尽管迄今为止已经不可能使用设置有部分反射膜和抗反射膜的耦合镜，使用部分反射膜选择激光束模式，补偿由部分反射膜和抗反射膜之间的结构差引起的激光束部分之间的相位差使用相位差补偿装置，形成直径设定为不大于部分反射膜直径的4倍的孔径。

4. 发明授权

US5416791A Laser oscillator 失效
标题翻译：激光振荡器
公开(公告)号：US5416791A
公开(公告)日：1995-05-16
申请号：US141944
申请日：1993-10-28
申请人： Akihiro Otani , Satoshi Nishida , Tatsumi Asai
发明人： Akihiro Otani , Satoshi Nishida , Tatsumi Asai
IPC分类号： H01S3/03 , H01S3/034 , H01S3/22
CPC分类号： H01S3/0346
摘要： A laser oscillator that has a resonator cavity defined by oppositely disposed discharge electrodes as well as a plurality of total reflecting mirrors and a partial reflecting mirror, the resonator cavity volume containing the path of a laser beam generated by the oscillator. A laser gas medium is used to control the temperature of the oscillator and is directed in a main flow generally transverse to the path of the laser. A side flow is taken from the main flow and is directed by a duct to a position in the vicinity of the partial reflecting mirror. In order to avoid excess heating of the gas medium in the vicinity of the partial reflecting mirror and to avoid directly impacting the mirror with the gas medium, a U-shaped structure is disposed at the exit of the side flow duct, proximate to the mirror, for directing the side flow in the vicinity of but away from the mirror.
摘要翻译：激光振荡器，其具有由相对设置的放电电极限定的谐振腔，以及多个全反射镜和部分反射镜，所述谐振腔体积包含由所述振荡器产生的激光束的路径。使用激光气体介质来控制振荡器的温度并且被引导到主要流动通常横切激光的路径。侧流从主流取出，并被导管引导到部分反射镜附近的位置。为了避免气体介质在部分反射镜附近的过度加热，并且避免直接用气体介质撞击反射镜，U形结构设置在侧流道的出口处，靠近反射镜用于将侧流引导到远离反射镜的附近。

5. 发明授权

US5596597A Laser oscillator with stabilized pointing 失效
标题翻译：具有稳定指示的激光振荡器
公开(公告)号：US5596597A
公开(公告)日：1997-01-21
申请号：US432946
申请日：1995-05-01
申请人： Satoshi Nishida , Akihiro Otani
发明人： Satoshi Nishida , Akihiro Otani
IPC分类号： H01S3/02 , H01S3/036 , H01S3/04 , H01S3/041 , H01S3/0971 , H01S3/08
CPC分类号： H01S3/036 , H01S3/02 , H01S3/041 , H01S3/0407 , H01S3/0971
摘要： A laser oscillator has a casing 10. A cooling medium is supplied from an inlet port 134 to a heat exchanger 8 via a pipe 35, and discharged form it via a pipe 37 and an outlet port 136. The ports 134 and 136 are symmetrically positioned relative to a center line of the casing when seen from upward. An inlet port 340 and an outlet port 342 have a similar positional relation ship thereto.
摘要翻译：激光振荡器具有壳体10.冷却介质经由管道35从入口端口134供应到热交换器8，并且经由管道37和出口端口136从其排出。端口134和136对称地定位相对于从上方看的壳体的中心线。入口端口340和出口端口342具有与其相似的位置关系。

6. 发明授权

US5357539A Laser oscillating apparatus with mirror angle adjustment 失效
标题翻译：具有镜面角度调节的激光振荡装置
公开(公告)号：US5357539A
公开(公告)日：1994-10-18
申请号：US955060
申请日：1992-10-01
申请人： Akihiro Otani , Satoshi Nishida , Masaki Kuzumoto , Tetuya Endo
发明人： Akihiro Otani , Satoshi Nishida , Masaki Kuzumoto , Tetuya Endo
IPC分类号： H01S3/04 , H01S3/08 , H01S3/081 , H01S3/086 , G02B5/10
CPC分类号： H01S3/081 , H01S3/0401 , H01S3/086 , H01S3/025
摘要： A laser oscillator comprising a laser resonator having a plurality of mirrors for directing the laser energy from source to exit apertures, the mirrors being constructed and mounted adjustably for reducing parasitic oscillations. The mirrors are mounted in adjusting members that have channels therein for coolant and are provided with heat insulating members that minimize heat gradients and unwanted heat transfers that may result in the distortion of the reflecting surfaces. In addition, the mirrors are angled so that light paths are defined that present a Z-shaped turning pattern. Apertures proximate to the mirrors through which the light beams are directed are offset from a common plane so that a reflective surface is not within the aperture of the opposing reflective surface. One or more of the apertures can be so offset to reduce the possibility of parasitic oscillations. Further, the reflectors can be angled and the apertures sized so as to eliminate parasitic oscillations.
摘要翻译：一种激光振荡器，包括具有多个反射镜的激光谐振器，所述反射镜用于将激光能量从源极引导到出射孔，所述反射镜被可调节地构造和安装，以减少寄生振荡。反射镜安装在其中具有用于冷却剂的通道的调节构件中并且设置有绝热构件，其使热梯度和不期望的热传递最小化，这可能导致反射表面的变形。此外，镜子是成角度的，使得定义呈现Z形转动图案的光路。靠近光束的反射镜的孔径与公共平面偏移，使得反射表面不在相对的反射表面的孔内。一个或多个孔径可以如此抵消以减少寄生振荡的可能性。此外，反射器可以是成角度的，并且孔的尺寸被设计成消除寄生振荡。

7. 发明授权

US5745513A Laser oscillator with stabilized pointing 失效
公开(公告)号：US5745513A
公开(公告)日：1998-04-28
申请号：US825087
申请日：1997-03-27
申请人： Satoshi Nishida , Akihiro Otani
发明人： Satoshi Nishida , Akihiro Otani
IPC分类号： H01S3/02 , H01S3/036 , H01S3/04 , H01S3/041 , H01S3/0971
CPC分类号： H01S3/036 , H01S3/02 , H01S3/041 , H01S3/0407 , H01S3/0971
摘要： A laser oscillator has a casing 10. A cooling medium is supplied from an inlet port 134 to a heat exchanger 8 via a pipe 35, and discharged form it via a pipe 37 and an outlet port 136. The ports 134 and 136 are symmetrically positioned relative to a center line of the casing when seen from upward. An inlet port 340 and an outlet port 342 have a similar positional relation ship thereto.

8. 发明授权

US5675598A Laser oscillator with stabilized pointing 失效
公开(公告)号：US5675598A
公开(公告)日：1997-10-07
申请号：US654894
申请日：1996-05-29
申请人： Satoshi Nishida , Akihiro Otani
发明人： Satoshi Nishida , Akihiro Otani
IPC分类号： H01S3/02 , H01S3/036 , H01S3/04 , H01S3/041 , H01S3/0971
CPC分类号： H01S3/036 , H01S3/02 , H01S3/041 , H01S3/0407 , H01S3/0971
摘要： A laser oscillator has a casing 10. A cooling medium is supplied from an inlet port 134 to a heat exchanger 8 via a pipe 35, and discharged form it via a pipe 37 and an outlet port 136. The ports 134 and 136 are symmetrically positioned relative to a center line of the casing when seen from upward. An inlet port 340 and an outlet port 342 have a similar positional relation ship thereto.

9. 发明授权

US5748662A Laser oscillator with stabilized pointing 失效
标题翻译：具有稳定指示的激光振荡器
公开(公告)号：US5748662A
公开(公告)日：1998-05-05
申请号：US825090
申请日：1997-03-27
申请人： Satoshi Nishida , Akihiro Otani
发明人： Satoshi Nishida , Akihiro Otani
IPC分类号： H01S3/02 , H01S3/036 , H01S3/04 , H01S3/041 , H01S3/0971 , H01S3/22 , H01S3/223
CPC分类号： H01S3/036 , H01S3/02 , H01S3/041 , H01S3/0407 , H01S3/0971
摘要： A laser oscillator has a casing 10. A cooling medium is supplied from an inlet port 134 to a heat exchanger 8 via a pipe 35, and discharged form it via a pipe 37 and an outlet port 136. The ports 134 and 136 are symmetrically positioned relative to a center line of the casing when seen from upward. An inlet port 340 and an outlet port 342 have a similar positional relation ship thereto.
摘要翻译：激光振荡器具有壳体10.冷却介质经由管道35从入口端口134供应到热交换器8，并且经由管道37和出口端口136从其排出。端口134和136对称地定位相对于从上方看的壳体的中心线。入口端口340和出口端口342具有与其相似的位置关系。

10. 发明授权

US06950462B2 Video encoding apparatus, video encoding method, and frame rate conversion apparatus 失效
标题翻译：视频编码装置，视频编码方法和帧速率转换装置
公开(公告)号：US06950462B2
公开(公告)日：2005-09-27
申请号：US10092725
申请日：2002-03-08
申请人： Akihiro Watabe , Akihiro Otani , Masaki Toyokura
发明人： Akihiro Watabe , Akihiro Otani , Masaki Toyokura
IPC分类号： H04N19/50 , H03M7/36 , H04N19/136 , H04N19/423 , H04N19/426 , H04N19/587 , H04N19/70 , H04B1/66
CPC分类号： H04N19/428 , H04N19/423 , H04N19/61
摘要： When an input picture is inputted to a video interface and stored in a reordering memory, the input time is recorded utilizing a reference time generator and a frame sync signal, and a frame memory to be encoded by an encoding unit is designated using the time information. Therefore, an encoder, which can perform stable encoding even when intervals of vertical sync signals are varied, is realized.
摘要翻译：当将输入图像输入到视频接口并存储在重排序存储器中时，使用参考时间发生器和帧同步信号记录输入时间，并且使用时间信息指定要由编码单元编码的帧存储器。因此，即使在垂直同步信号的间隔变化的情况下也能够进行稳定编码的编码器。

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