公开(公告)号：US07447244B2

公开(公告)日：2008-11-04

申请号：US11808824

申请日：2007-06-13

申请人： Byung Jin Ma ,  Kiyoyuki Kawai

发明人： Byung Jin Ma ,  Kiyoyuki Kawai

IPC分类号： H01S3/10 ,  H01S3/08

CPC分类号： G02F1/3501 ,  G02F1/3544 ,  G02F2001/3546 ,  H01S3/005 ,  H01S3/0071

摘要： A wavelength conversion laser device includes a laser light source for emitting a first wavelength light, a nonlinear optical crystal for converting the first wavelength light into a second wavelength light, and a nonlinear optical crystal rotator for rotating the nonlinear optical crystal so as to change an incident angle of the first wavelength light into the nonlinear optical crystal. The device also includes a nonlinear optical crystal rotation driving controller for controlling a rotation amount of the rotator in accordance with an output change of the second wavelength light so that the nonlinear optical crystal has phase matching with the first wavelength light. The device further includes a light exit position adjustor for compensating an exit position change of the second wavelength light in accordance with the incident angle change of the first wavelength light so that the second wavelength light is outputted in a predetermined exit position.

摘要翻译： 波长转换激光器件包括用于发射第一波长光的激光源，用于将第一波长光转换成第二波长光的非线性光学晶体，以及用于旋转非线性光学晶体以改变非线性光学晶体的非线性光学晶体旋转器 第一波长光的入射角进入非线性光学晶体。 该装置还包括非线性光学晶体旋转驱动控制器，用于根据第二波长光的输出变化来控制旋转体的旋转量，使得非线性光学晶体与第一波长光具有相位匹配。 该装置还包括光出射位置调节器，用于根据第一波长光的入射角度变化来补偿第二波长光的出射位置变化，使得第二波长光在预定出口位置输出。

公开(公告)号：US07443892B2

公开(公告)日：2008-10-28

申请号：US11808812

申请日：2007-06-13

申请人： Byung Jin Ma ,  Kiyoyuki Kawai

发明人： Byung Jin Ma ,  Kiyoyuki Kawai

IPC分类号： H01S3/10

CPC分类号： G02F1/3544 ,  G02F1/37 ,  G02F2001/3546 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/06837

摘要： In a wavelength conversion laser device, a laser light source emits first wavelength light. A non-linear optical crystal converts the first wavelength light into second wavelength light. A rotational driver rotates the non-linear optical crystal so as to alter an incidence angle of the first wavelength light with respect to the non-linear optical crystal. A rotational driving controller detects a portion of an output of the second wavelength light, generates a rotational control signal of the non-linear optical crystal in accordance with a change in the output, and transmits the rotational control signal to the rotational driver. A beam location maintaining mirror retroreflects the second wavelength light, outputted from the non-linear optical crystal, along a substantially same path as that of the first wavelength light. Also, an output beam distributor guides the retroreflected second wavelength light in a desired output direction.

公开(公告)号：US20080107141A1

公开(公告)日：2008-05-08

申请号：US11976790

申请日：2007-10-29

申请人： Byung Jin Ma ,  Kiyoyuki Kawai ,  Hong Ki Kim

发明人： Byung Jin Ma ,  Kiyoyuki Kawai ,  Hong Ki Kim

IPC分类号： H01S3/10

CPC分类号： G02F1/3775 ,  G02F2001/3546

摘要： A wavelength conversion laser apparatus including: a laser light source emitting primary wavelength light; a non-linear optical crystal including: a light waveguide region having a first refractivity, the light waveguide region receiving the primary wavelength light to output as secondary wavelength light; and a clad region adjacent to the light waveguide region, the clad region having a second refractivity lower than the first refractivity, wherein at least the light waveguide region has a periodically domain-inverted structure formed such that a domain-inverted period varies in a direction perpendicular to an incident axis of the primary wavelength light; and a mover moving the non-linear optical crystal to change the domain-inverted period on a path where the primary wavelength light incident on the light waveguide region passes.

摘要翻译： 一种波长转换激光装置，包括：发射主波长光的激光光源; 一种非线性光学晶体，包括：具有第一折射率的光波导区域，所述光波导区域接收所述主波长光以作为次级波长光输出; 以及与所述光波导区域相邻的包层区域，所述包层区域具有比所述第一折射率低的第二折射率，其中至少所述光波导区域具有周期性域反转结构，使得畴反转周期沿方向 垂直于主波长光的入射轴; 以及移动非线性光学晶体的移动器，以改变入射在光波导区域上的主波长光通过的路径上的域反转时段。

公开(公告)号：US20060263020A1

公开(公告)日：2006-11-23

申请号：US11436631

申请日：2006-05-19

申请人： Kiyoyuki Kawai ,  Jae Yong

发明人： Kiyoyuki Kawai ,  Jae Yong

IPC分类号： G02B6/02

CPC分类号： H01S3/094003 ,  H01S3/094092

摘要： The invention provides an optical fiber laser apparatus. In the invention, an excitation light source outputs light of a given wavelength. A first optical fiber generates light of a plurality of wavelengths including light of a first wavelength by up-conversion from the output light. Also, a first resonator includes first and second mirrors provided on both ends of the first optical fiber, respectively. The first resonator selects the first wavelength light to output via the second mirror. Further, a second optical fiber amplifies an output of the first wavelength light incident from the first resonator. In addition, the first and second mirrors have higher reflexivity for the first wavelength light than the second wavelength light having higher gain per length of the optical fiber. The first fiber has a length set such that the first wavelength light oscillates preferentially over the second wavelength light.

摘要翻译： 本发明提供一种光纤激光装置。 在本发明中，激发光源输出给定波长的光。 第一光纤通过从输出光的上变频而产生包括第一波长的光的多个波长的光。 此外，第一谐振器包括分别设置在第一光纤两端的第一和第二反射镜。 第一谐振器选择通过第二反射镜输出的第一波长光。 此外，第二光纤放大从第一谐振器入射的第一波长光的输出。 此外，第一和第二反射镜对于第一波长的光具有比每个光纤长度增益更高的第二波长光更高的反射率。 第一光纤具有长度设置，使得第一波长光在第二波长光上优先振荡。

公开(公告)号：US5534935A

公开(公告)日：1996-07-09

申请号：US329855

申请日：1994-10-27

申请人： Kiyoyuki Kawai ,  Yoshihide Kimata ,  Masayuki Ishida

发明人： Kiyoyuki Kawai ,  Yoshihide Kimata ,  Masayuki Ishida

IPC分类号： H04N7/01 ,  H04N7/015

CPC分类号： H04N7/014 ,  H04N7/012

摘要： A processing apparatus employs motion-adaptive processing to create a progressive scanning signal from an interlaced television scanning signal. The interlaced scanning signal is input to a field delay circuit and to a vertical highpass filter, the output of the field delay circuit is input to a field delay circuit and to a vertical lowpass filter, and the output of the field delay circuit is input to a vertical highpass filter. The outputs of the vertical highpass filters are added together at an adder. The output of the adder is added to the output of the vertical lowpass filter to create an interpolation signal. The interpolation signal and direct-type signal, being time-compressed, are coupled to a switch where they are alternately selected to obtain a progressive scanning signal with improved image quality, irrespective of whether the input signal represents a still or moving image.

摘要翻译： 处理装置采用运动自适应处理来从隔行电视扫描信号产生逐行扫描信号。 隔行扫描信号被输入到场延迟电路和垂直高通滤波器，场延迟电路的输出被输入到场延迟电路和垂直低通滤波器，场延迟电路的输出被输入到 一个垂直高通滤波器。 垂直高通滤波器的输出在加法器相加在一起。 加法器的输出被加到垂直低通滤波器的输出端，以产生插值信号。 时间压缩的内插信号和直接型信号被耦合到交替地被选择的开关，以获得具有改善的图像质量的逐行扫描信号，而不管输入信号是静止图像还是运动图像。

公开(公告)号：US5179443A

公开(公告)日：1993-01-12

申请号：US822880

申请日：1992-01-21

申请人： Yoshio Sugimori ,  Yoshihide Kimata ,  Seijiro Yasuki ,  Yoshihiko Ogawa ,  Kiyoyuki Kawai

发明人： Yoshio Sugimori ,  Yoshihide Kimata ,  Seijiro Yasuki ,  Yoshihiko Ogawa ,  Kiyoyuki Kawai

IPC分类号： H04N7/00 ,  H04N7/015 ,  H04N7/084 ,  H04N11/24

CPC分类号： H04N11/006 ,  H04N7/007 ,  H04N7/0152 ,  H04N7/084 ,  Y10S348/913

摘要： A wide aspect signal is band-width limited in the vertical spatial frequency by a V-LPF. The wide aspect signal is band-width limited along the temporal spatial frequency and in the vertical and horizontal spatial frequency by a 1/60-sec delay unit, an adder, 1 1/60-sec delay unit, a selector, a V-LPF, and an H-LPF. A motion image signal can be obtained by an adder. A still image signal can be obtained by the selector. The motion and still image signals are mixed by a mixer in accordance with an image motion amount. An output from the substractor is processed by a vertical shifter, an H-LPF, and a 6.fwdarw.5 converter to provide a still image compensation signal Vh. A signal from the V-LPF is compressed in the vertical direction by a 6.fwdarw.5 converter so as to be a center portion signal which can be displayed as an image with the receiver of the existing television system, and supplied to a selector. An output signal from the 6.fwdarw.5 converter is processed by an LD generator to generate a motion image compensation signal (LD signal). The LD and Vh signals are selectively output from a mixer in accordance with the image motion. A compensation signal output from the mixer is processed by an H-LPF, a 1/5-time compressor, and a rearranging unit, so that it can be multiplexed on upper and lower black bar portions formed on upper and lower portions of the center panel, and supplied to the selector.

公开(公告)号：US5019902A

公开(公告)日：1991-05-28

申请号：US388055

申请日：1989-08-01

申请人： Seijiro Yasuki ,  Kiyoyuki Kawai

发明人： Seijiro Yasuki ,  Kiyoyuki Kawai

IPC分类号： H04N7/12 ,  H04N7/00 ,  H04N7/015 ,  H04N11/24 ,  H04N19/423 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85

CPC分类号： H04N11/006 ,  H04N19/63 ,  H04N7/007 ,  H04N7/015

摘要： At a time of band width compression, an input signal is separated into a horizontal high frequency component H and a horizontal low frequency component L by means of an LPF and an adder. The component H is subjected to in-frame averaging by an in-frame average circuit. The component L is delayed by one field by a field delay circuit which contains a component to provide smooth motion. The delayed output is added to the in-frame average output in one field by an adder. In the other field, a difference in the horizontal low frequency component between fields is attained by a field delay circuit and an adder. Accordingly, in one field a signal containing the component L and the component H subjected to in-frame averaging is attained. In the other field, a signal containing only the component L having gone through a process of obtaining the field-to-field difference is attained. At a time of band width reproduction, an input signal is output as it is in one field through two switch circuits. In the other field, the input sighnal is added to an input signal in the former field by a field delay circuit and an adder. The added output is transferred through a switch.

摘要翻译： 在带宽压缩时，通过LPF和加法器将输入信号分离为水平高频分量H和水平低频分量L. 分量H通过帧内平均电路进行帧内平均。 分量L被场延迟电路延迟一个场，该场延迟电路包含提供平滑运动的分量。 延迟输出由加法器加到一个场中的帧内平均输出。 在另一个场中，通过场延迟电路和加法器来获得场之间的水平低频分量的差异。 因此，在一个场中，获得了包含分量L和经过帧内平均的分量H的信号。 在另一个场中，仅获得了经过获得场到场差的处理的分量L的信号。 在带宽再现时，通过两个开关电路将输入信号原样输出到一个场中。 在另一个场中，通过场延迟电路和加法器将输入信号加到前一场的输入信号中。 添加的输出通过交换机传输。

公开(公告)号：US06483968B2

公开(公告)日：2002-11-19

申请号：US10022515

申请日：2001-12-20

申请人： Kazuyoshi Fuse ,  Masanobu Kimura ,  Kiyoyuki Kawai ,  Ritsuo Yoshida

发明人： Kazuyoshi Fuse ,  Masanobu Kimura ,  Kiyoyuki Kawai ,  Ritsuo Yoshida

IPC分类号： G02B630

CPC分类号： G02B6/423 ,  G02B6/305 ,  G02B6/42 ,  G02B6/421 ,  G02B6/4228 ,  G02B6/4239 ,  G02B6/424 ,  G02B6/4257 ,  G02B6/4266

摘要： Even if there is a temperature variation, a positional discrepancy at a colliding surface of an active surface of a semiconductor laser and an optical waveguide is suppressed, resulting in realization of a semiconductor light emitting element coupled with optical fiber of stable operation. In order to realize the above object, a semiconductor light emitting element coupled with optical fiber comprises a substrate, an optical waveguide disposed on the substrate and including a core and a cladding layer covering the core, a semiconductor light emitting element disposed on the substrate and comprising an output end-surface facing one end of the core of the optical waveguide, and an optical fiber comprising a core an end of which faces the other end of the core of the optical waveguide, wherein the cladding layer sandwiches both surfaces of the semiconductor light emitting element.

公开(公告)号：US5402186A

公开(公告)日：1995-03-28

申请号：US117000

申请日：1993-09-07

申请人： Kiyoyuki Kawai

发明人： Kiyoyuki Kawai

IPC分类号： H04N7/01

CPC分类号： H04N7/012

摘要： A television signal processor including a device for generating a frame signal, which represents a moving picture, by combining a first field and a second field of an interlace scanning input signal, a filter for separating the frame signal into a vertical low frequency component and a vertical high frequency component, a device for doubling the frame frequency by a frame progressive operation of the vertical low frequency component, a device for converting the vertical high frequency component into a second vertical low frequency component by shifting the frequency of the vertical high frequency component and for converting the vertical high frequency component into a temporal high frequency component by doubling the frequency of the frame signal, and a device for generating a moving picture signal by combining the temporal high frequency component with the double frame-frequency signal produced by the frame progressive operation of the vertical low frequency component. The processor may double the frequencies of the first and second fields, prior to filtering, instead of performing frequency doubling after filtering.

摘要翻译： 一种电视信号处理器，包括通过组合隔行扫描输入信号的第一场和第二场来产生表示运动图像的帧信号的装置，用于将帧信号分离成垂直低频分量的滤波器和 垂直高频分量的装置，用于通过垂直低频分量的帧逐行操作来加倍帧频的装置，用于通过将垂直高频分量的频率移位来将垂直高频分量转换为第二垂直低频分量的装置 并且用于通过将帧信号的频率加倍来将垂直高频分量转换成时间高频分量;以及用于通过将时间高频分量与由帧产生的双帧频信号组合来产生运动图像信号的装置 垂直低频分量的逐行操作。 处理器可以在滤波之前将第一和第二场的频率加倍，而不是在滤波后执行倍频。

公开(公告)号：US5355171A

公开(公告)日：1994-10-11

申请号：US954503

申请日：1992-09-29

申请人： Toru Miyazaki ,  Kiyoyuki Kawai

发明人： Toru Miyazaki ,  Kiyoyuki Kawai

IPC分类号： H03L7/099 ,  H03L7/23 ,  H04N5/06 ,  H04N9/45

CPC分类号： H04N9/45 ,  H03L7/0991 ,  H03L7/23

摘要： A digital oscillator including an integrator for cumulatively integrating a specified signal and a controller responsive to a control signal for maintaining the output frequency of the integrator within a limit corresponding to the amplitude of the control signal.

摘要翻译： 数字振荡器，包括用于将指定信号累积地积分的积分器和响应于控制信号的控制器，用于将积分器的输出频率保持在与控制信号的幅度相对应的极限内。