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97 条记录 (耗时 0.062 秒)

    RADIO OSCILLATING AND RADAR SYSTEMS
    41.
    发明申请
    RADIO OSCILLATING AND RADAR SYSTEMS 有权
    无线电振荡和雷达系统

    公开(公告)号：US20070166053A1

    公开(公告)日：2007-07-19

    申请号：US11619743

    申请日：2007-01-04

    申请人： Jungo Kondo ,  Osamu Mitomi ,  Kenji Aoki ,  Takashi Yoshino ,  Keiji Matsuhiro

    发明人： Jungo Kondo ,  Osamu Mitomi ,  Kenji Aoki ,  Takashi Yoshino ,  Keiji Matsuhiro

    IPC分类号： H04B10/04

    CPC分类号： H04B1/408 ,  G01S7/35 ,  G01S13/345 ,  G01S13/931 ,  G01S2013/9321 ,  G01S2013/9325 ,  H04B1/04 ,  H04B2001/0491 ,  H04B2210/006

    摘要： It is provided a practical radio oscillating system for a radar system to alleviate the necessity of a reception filter of severe specification of pass band and an oscillating system and an amplifier of high performance and high reliability. The radio oscillating system has an optical modulator 2 for oscillation; a modulating means 6 for modulating a carrier wave “P” passing through the optical modulator 2 so as to superimpose sideband waves “Q” and “R” onto the carrier wave; an optical receiver 7 for oscillation to receive outgoing light “B” from the optical modulator 2 and to convert the outgoing light into an electrical signal; and a radiating means 8 for radiating radio signal “C” based on the electrical signal.

    摘要翻译： 提供了一种用于雷达系统的实用的无线电振荡系统，以减轻严格规范的通带的接收滤波器以及具有高性能和高可靠性的振荡系统和放大器的必要性。 无线电振荡系统具有用于振荡的光调制器2。 调制装置6，用于调制通过光调制器2的载波“P”，以将边带波“Q”和“R”叠加到载波上; 用于振荡以从光调制器2接收出射光“B”并将出射光转换成电信号的光接收器7; 以及用于基于电信号辐射无线电信号“C”的辐射装置8。

    Wavelength converting devices
    42.
    发明授权
    Wavelength converting devices 有权
    波长转换器件

    公开(公告)号：US07164525B2

    公开(公告)日：2007-01-16

    申请号：US11223227

    申请日：2005-09-09

    申请人： Ken-ichi Noda ,  Makoto Iwai ,  Takashi Yoshino

    发明人： Ken-ichi Noda ,  Makoto Iwai ,  Takashi Yoshino

    IPC分类号： G02F1/355

    CPC分类号： G02F1/3551 ,  G02F1/377 ,  G02F2001/3505 ,  G02F2203/60

    摘要： Wavelength conversion devices for converting fundamental waves to light of a different wavelength are provided. The devices have a wavelength converting layer comprising a plate-shaped body of a non-linear optical crystal having a first main face and a second main face. A supporting body is joined with the first main face of the wavelength converting layer. An additional supporting body may also be joined with the second main face of the wavelength converting layer.

    摘要翻译： 提供了用于将基波转换成不同波长的光的波长转换装置。 这些器件具有包括具有第一主面和第二主面的非线性光学晶体的板状体的波长转换层。 支撑体与波长转换层的第一主面接合。 附加的支撑体也可以与波长转换层的第二主面接合。

    Blue laser beam oscillating method and system
    44.
    发明申请
    Blue laser beam oscillating method and system 审中-公开
    蓝色激光束振荡方法和系统

    公开(公告)号：US20060120415A1

    公开(公告)日：2006-06-08

    申请号：US11329019

    申请日：2006-01-10

    申请人： Makoto Iwai ,  Katsuhiro Imai ,  Takashi Yoshino ,  Minoru Imaeda

    发明人： Makoto Iwai ,  Katsuhiro Imai ,  Takashi Yoshino ,  Minoru Imaeda

    IPC分类号： H01S3/10

    CPC分类号： G02F1/377 ,  G02F2202/20

    摘要： It is provided system and method of oscillating blue laser beam having a relatively high conversion efficiency and whose output power of the blue laser beam can be improved. Light emitted from a broad area semiconductor laser device 2 of Fabry-Perot type is irradiated into a slab optical waveguide 8 made of a non-linear optical crystal as a fundamental wave “A”. Blue laser beam “B” is emitted from the slab optical waveguide 8.

    摘要翻译： 提供了具有相对高的转换效率的蓝色激光束的振荡系统和方法，并且可以提高蓝色激光束的输出功率。 从法布里 - 珀罗型的广域半导体激光装置2发射的光被照射到由非线性光学晶体制成的平板光波导8中作为基波“A”。 蓝色激光束“B”从平板光波导8发射。

    Second harmonic wave-generation device
    47.
    发明授权
    Second harmonic wave-generation device 失效
    二次谐波发生装置

    公开(公告)号：US06181462B2

    公开(公告)日：2001-01-30

    申请号：US09321057

    申请日：1999-05-27

    申请人： Takashi Yoshino ,  Minoru Imaeda ,  Makoto Iwai

    发明人： Takashi Yoshino ,  Minoru Imaeda ,  Makoto Iwai

    IPC分类号： G02F202

    CPC分类号： G02F1/377

    摘要： A second harmonic wave-generation device for generating a second harmonic wave composed of an extraordinary ray from a fundamental wave composed of an ordinary ray, including a solid crystal of lithium potassium niobate-lithium potassium tantalate solid solution crystal or a single crystal made of lithium potassium niobate, wherein a mode field diameter of the fundamental wave inside the second harmonic wave-generation device is greater than that of the second harmonic wave.

    摘要翻译： 一种二次谐波发生装置，用于产生由包含由铌酸锂钾 - 钽酸锂钾固溶体晶体构成的由普通射线构成的基波的特殊射线构成的二次谐波，或由锂构成的单晶 铌酸钾，其中二次谐波产生装置内的基波的模场直径大于二次谐波的模场直径。

    Optoelectronic element module
    48.
    发明授权
    Optoelectronic element module 失效
    光电元件模块

    公开(公告)号：US5924290A

    公开(公告)日：1999-07-20

    申请号：US019736

    申请日：1998-02-06

    申请人： Takashi Yoshino

    发明人： Takashi Yoshino

    IPC分类号： G02B6/42 ,  H01L23/38 ,  H01S5/00 ,  H01S5/022 ,  H01S5/024 ,  F25B21/02 ,  F28F7/00 ,  H01L23/34

    CPC分类号： H01L33/645 ,  G02B6/4208 ,  G02B6/4271 ,  G02B6/4272 ,  H01L23/38 ,  H01S5/02415 ,  G02B6/4269 ,  G02B6/4285 ,  G02B6/4286 ,  H01L2924/0002 ,  H01S5/02284 ,  H01S5/02438

    摘要： An optoelectronic element module is provided, which has improved reliability in cooling performance. This module is comprised of an optoelectronic element, a Peltier unit for cooling the optoelectronic element, and a package encapsulating the optoelectronic element and the Peltier unit. The optoelectronic element is mounted directly on or indirectly through a supporting member on a first surface of the Peltier unit. A second surface of the Peltier unit is engaged with a mounting surface of the package by an engaging structure while allowing the Peltier unit to shift along the mounting surface of the package. A thermal stress caused by a difference between thermal expansion coefficients of the second surface of the Peltier unit and the mounting surface of the package is relaxed by a positional shift of the Peltier unit along the mounting surface of the package with respect to the package. Preferably, the engaging structure produces a magnetic-field force or elastic force for engagement.

    摘要翻译： 提供了一种光电元件模块，提高了冷却性能的可靠性。 该模块由光电子元件，用于冷却光电子元件的珀尔帖单元和封装光电元件和珀耳帖单元的封装构成。 光电子元件直接安装在珀尔帖单元的第一表面上或间接通过支撑构件。 珀尔帖单元的第二表面通过接合结构与包装的安装表面接合，同时允许珀尔帖单元沿着包装的安装表面移动。 珀尔帖单元沿着封装的安装表面相对于封装件的位置偏移，使珀尔帖单元的第二表面的热膨胀系数与封装的安装表面之间的差异引起的热应力被松弛。 优选地，接合结构产生用于接合的磁场力或弹性力。

    Semiconductor laser/optical fiber coupling device
    49.
    发明授权
    Semiconductor laser/optical fiber coupling device 失效
    半导体激光/光纤耦合器件

    公开(公告)号：US5416869A

    公开(公告)日：1995-05-16

    申请号：US34467

    申请日：1993-03-19

    申请人： Takashi Yoshino

    发明人： Takashi Yoshino

    IPC分类号： H01S5/00 ,  G02B6/42

    CPC分类号： G02B6/4207

    摘要： In a semiconductor laser device used as an optical time domain reflectometer, a polarizer is inserted in the path of the laser light. The plane of polarization of the polarizer is aligned to the plane of polarization of the emitted laser light, and the polarizer transmits the emitted laser light without attenuation. A reflected laser light from an optical fiber under test is a non-polarized light and receives a substantial attenuation by the polarizer. Thus, problems associated with reradiation echoes are prevented.

    摘要翻译： 在用作光时域反射计的半导体激光器件中，在激光的路径中插入偏振器。 偏振器的偏振平面与所发射的激光的偏振平面对准，并且偏振器透射发射的激光而没有衰减。 来自被测光纤的反射激光是非偏振光，并且通过偏振器接收实质上的衰减。 因此，防止与再辐射回波有关的问题。