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1. 发明专利

JP2004233671A Excitation light source for raman amplification 有权
公开(公告)号：JP2004233671A
公开(公告)日：2004-08-19
申请号：JP2003022443
申请日：2003-01-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOYADA YASUHARU , HIRANO YOSHIHITO , YANAGISAWA TAKAYUKI
IPC分类号： G02F1/35 , H01S3/10 , H01S3/30 , H04B10/07 , H04B10/2507 , H04B10/29 , H04B10/294 , H04B10/02 , H04B10/16 , H04B10/17 , H04B10/18
摘要： PROBLEM TO BE SOLVED: To obtain an excitation light source for Raman amplification, which can enhance effect in improving the optical SNR (signal to noise ratio). SOLUTION: An optical SNR monitoring device 16 for detecting the power ratio of a light noise to a light signal propagated in an optical fiber 1 is provided, in which the wavelength of a secondary excited light introduced from a secondary excitation light source 12 to the optical fiber 1 via multiplexers/demultiplexers 13 and 14 is adjusted so that the power ratio of the light detected by the optical SNR monitoring device 16 agrees with a setting ratio. Accordingly, the optical SNR can be improved by optimizing the wavelength of the secondary excitation light. COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JP2011128639A Speckle removing light source and lighting device 有权
标题翻译：分离光源和照明装置
公开(公告)号：JP2011128639A
公开(公告)日：2011-06-30
申请号：JP2011013645
申请日：2011-01-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOYADA YASUHARU , HIRANO YOSHIHITO , SAKAI KIYOHIDE , IMASHIRO MASAO , SHIKAMA SHINSUKE , SUZUKI JIRO , ENDO TAKAO , TERAMOTO KOHEI , SHIBUE SHIGENORI
IPC分类号： G02B27/48 , G02F1/01 , G03B21/14
摘要： PROBLEM TO BE SOLVED: To obtain a speckle removing light source that can remove speckle by using a laser beam, the wavelength of which is changed temporally.
SOLUTION: The speckle removing light source includes: a light source for output of a laser beam, the vertical mode of which is a single mode; a light frequency modulating means for changing the wavelength of a laser beam; a multimode optical fiber, which is long in its longitudinal direction and bent; and at least one or more condenser lenses for guiding a laser beam to the optical fiber. The condenser lens converts the condensing size of a laser beam into the size substantially equal to the size of the core diameter of the optical fiber, and also converts the number of aperture of the laser beam into the number substantially equal to the number of aperture that enables the transmission of the optical fiber. In the optical fiber, at least two or more modes are provided for light, light beams to the highest order mode from a basic mode, which are different from each other in transmission time amplified by the number of reflections within the optical fiber, are superposed in a space distribution at the emission end face, and a part including an end face, from which at least the light of the optical fiber is output, and the core outside diameter shape of a cross-section are approximately polygonal.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：获得可以通过使用激光束去除斑点的斑点去除光源，其波长在时间上改变。解决方案：除斑光源包括：用于输出激光束的光源，其垂直模式是单模式; 用于改变激光束的波长的光频率调制装置; 多模光纤，其长度方向长，弯曲; 以及用于将激光束引导到光纤的至少一个或多个聚光透镜。聚光透镜将激光束的聚光尺寸转换成基本上等于光纤纤芯直径尺寸的尺寸，并将激光束的孔径数量转换成基本等于孔径数使得能够传输光纤。在光纤中，为光提供至少两种以上的模式，从基本模式到达最高阶模式的光束，其在通过光纤内的反射次数放大的透射时间中彼此不同，被叠加在发射端面的空间分布中，以及包括端面的部分，至少输出光纤的光，并且横截面的芯外径形状近似为多边形。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2007335435A Optical fiber 有权
标题翻译：光纤
公开(公告)号：JP2007335435A
公开(公告)日：2007-12-27
申请号：JP2006161985
申请日：2006-06-12
申请人： Mitsubishi Cable Ind Ltd , Mitsubishi Electric Corp , 三菱電機株式会社 , 三菱電線工業株式会社
发明人： YAMAMOTO TETSUYA , NISHINA RINTARO , HIRANO YOSHIHITO , KAMEYAMA SHUNPEI , KOYADA YASUHARU
IPC分类号： H01S3/06 , C03C13/04 , G02B6/04 , H01S3/094
CPC分类号： C03C3/06 , C03C13/00
摘要： PROBLEM TO BE SOLVED: To enhance the beam quality and output of a laser light beam. SOLUTION: The optical fiber 10 comprises a core 2 to which an optical amplification constituent is doped, and which includes a plurality of core forming portions 1 extending in parallel with each other; and a clad 3 provided on the periphery of the core 2. The core forming portions 1 are arranged tightly such that a single laser beam exits from the end of each fiber. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提高激光束的光束质量和输出。解决方案：光纤10包括掺杂光放大成分的芯2，并且包括彼此平行延伸的多个芯形成部分1; 以及设置在芯体2的周边的包层3.芯部形成部分1被紧密配置，使得单个激光束从每个光纤的端部离开。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2014174069A Laser range finding device 审中-公开
标题翻译：激光测距装置
公开(公告)号：JP2014174069A
公开(公告)日：2014-09-22
申请号：JP2013048699
申请日：2013-03-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ISHIDA KOZO , KOYADA YASUHARU , ONO TAKENORI
IPC分类号： G01S17/10 , G01C3/06
摘要： PROBLEM TO BE SOLVED: To solve a problem such that with a conventional laser range finding device, since the output of a light receiving element is amplified and compared, a range finding value varies due to the amount of laser beam signal, characteristics such as sensitivity characteristics of the light receiving element, amplification characteristics of an amplifier, and threshold characteristics of a comparator, and variations in the characteristics.SOLUTION: Correlation between reference light showing a transmission timing and signal right showing a reception timing is detected. From the detection results of correlation, the center of gravity is obtained and a range finding value is calculated. Thus, a laser range finding device can be provided that reduces a range finding error to improve range finding accuracy.
摘要翻译：要解决的问题为了解决现有的激光测距装置的问题，由于光接收元件的输出被放大和比较，所以测距值由于激光束信号的量，灵敏度等特性而变化光接收元件的特性，放大器的放大特性和比较器的阈值特性，以及特性的变化。检测出显示发送定时的参考光与显示接收定时的信号权之间的相关性。根据相关性的检测结果，得到重心，计算出测距值。因此，可以提供降低测距误差以提高测距精度的激光测距装置。

5. 发明专利

JP2007322695A Wavelength conversion element 审中-公开
标题翻译：波长转换元件
公开(公告)号：JP2007322695A
公开(公告)日：2007-12-13
申请号：JP2006152278
申请日：2006-05-31
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOYADA YASUHARU , SAKAI KIYOHIDE , HIRANO YOSHIHITO
IPC分类号： G02F1/377
摘要： PROBLEM TO BE SOLVED: To provide a wavelength conversion element which hardly produces a loss due to absorption of fundamental wave laser and the second higher harmonic wave laser even when the fundamental wave laser of high power density is made incident, has high efficiency of wavelength conversion and is composed of a small number of components.
SOLUTION: The wavelength conversion element is provided with: a core made of a nonlinear optical material which converts wavelengths of the inputted fundamental wave laser and generates the second higher harmonic wave laser; a planar waveguide in which the fundamental wave laser is propagated in a free space in the horizontal direction, while being confined in the core in the thickness direction; a filter which is integrally formed on one reflection edge surface of the core, reflects the fundamental wave laser and transmits the second higher harmonic wave laser; and a mirror which is integrally formed on a part of the other side reflection edge surface facing one reflection edge surface of the core and reflects the fundamental wave laser, wherein the filter and the mirror are formed such that the fundamental wave laser inputted into the core is returned in the core by several times and is propagated.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使当高功率密度的基波激光器入射时，即使在基波激光器和第二高次谐波激光器的吸收时也难以产生损耗的波长转换元件，具有高效率的波长转换，并且由少量的组件组成。解决方案：波长转换元件设置有：由非线性光学材料制成的芯体，其转换输入的基波激光器的波长并产生第二高次谐波激光器; 平面波导，其中基波激光器在沿着厚度方向限制在芯中的水平方向上的自由空间中传播; 一体地形成在芯的一个反射边缘表面上的滤波器反射基波激光并透射第二高次谐波激光; 以及反射镜，其整体地形成在面对芯的一个反射边缘表面的另一侧反射边缘表面的一部分上并反射基波激光器，其中滤光器和反射镜被形成为使得输入到核心的基波激光在核心中返回多次并被传播。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008300885A Semiconductor laser light emitting apparatus and solid-state laser rod excitation module 有权
标题翻译：半导体激光发光装置和激光雷射激光模块
公开(公告)号：JP2008300885A
公开(公告)日：2008-12-11
申请号：JP2008235242
申请日：2008-09-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOYADA YASUHARU , YAMAMOTO SHUHEI , PAVEL NIKOLAI , HIRANO YOSHIHITO
IPC分类号： H01S3/094
摘要： PROBLEM TO BE SOLVED: To provide a compact semiconductor laser light emitting apparatus capable of generating synthesized laser light having a high power density with a high degree of efficiency using a semiconductor laser light, and a solid-state laser rod excitation module capable of exciting a solid-state laser rod with high power and with a high degree of efficiency using the semiconductor laser light and obtaining the laser light with a high beam quality. SOLUTION: The solid-state laser rod excitation module comprises: a diffusive reflection tube 4; a stack-type semiconductor laser 5 wherein output laser light has a large divergence angle in a direction (fast axis direction) parallel to the axis of the solid-state laser rod 2; a semiconductor laser light focusing means 6; a semiconductor laser light guiding means 7 for guiding the semiconductor laser light focused by the semiconductor laser light focusing means 6 to the inside of the diffusive reflection tube 4 while substantially maintaining the size in the direction (fast axis direction) parallel to the direction in which bar-shaped components are stacked; and a semiconductor laser light diffusion means 8 for diffusing the semiconductor laser light guided by the semiconductor laser light guiding means 7. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种能够使用半导体激光以高效率产生具有高功率密度的合成激光的小型半导体激光发光装置，以及具有能够使用半导体激光的固态激光棒激励模块使用半导体激光激发具有高功率和高效率的固态激光棒，并获得具有高光束质量的激光。固体激光棒激发模块包括：扩散反射管4; 输出激光在平行于固体激光棒2的轴的方向（快轴方向）上具有大的发散角的叠层型半导体激光器5; 半导体激光聚焦装置6; 半导体激光导向装置7，用于将半导体激光聚焦装置6聚焦的半导体激光引导到扩散反射管4的内部，同时基本上保持与其方向（快轴方向）平行的方向棒状部件堆叠; 以及用于扩散由半导体激光导向装置7引导的半导体激光的半导体激光扩散装置8.版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2006330661A Optical wavelength conversion element and optical wavelength converter 有权
标题翻译：光波长转换元件和光波长转换器
公开(公告)号：JP2006330661A
公开(公告)日：2006-12-07
申请号：JP2005258068
申请日：2005-09-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SAKAI KIYOHIDE , KOYADA YASUHARU , IMASHIRO MASAO , TERAMOTO KOHEI , SHIBUE SHIGENORI
IPC分类号： G02F1/377
摘要： PROBLEM TO BE SOLVED: To prevent the reduction of the quantity of optical coupling to a channel optical waveguide, having a period polarization inversion structure of a nonlinear optical crystal in an optical wavelength conversion element, when the fundamental wave having a large astigmatic difference impinges. SOLUTION: The optical wavelength conversion element includes the channel optical waveguide, having the periodic polarization inversion structure of the nonlinear optical crystal and a slab optical waveguide which is connected to the channel optical waveguide and controls a lateral mode in one direction of the fundamental wave, corresponding to the periodic polarization inversion structure of the nonlinear optical crystal. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了防止在具有光波长转换元件的非线性光学晶体的周期偏振反转结构的通道光波导中减少光耦合量，当基波具有大像散差异冲击。解决方案：光波长转换元件包括具有非线性光学晶体的周期性极化反转结构的通道光波导和连接到通道光波导的平板光波导，并且控制横向模式基波对应于非线性光学晶体的周期极化反转结构。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2011048406A Wavelength converting laser device and image display device 有权
标题翻译：波长转换激光器件和图像显示器件
公开(公告)号：JP2011048406A
公开(公告)日：2011-03-10
申请号：JP2010275588
申请日：2010-12-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOYADA YASUHARU , HIRANO YOSHIHITO , IMASHIRO MASAO , TERAMOTO KOHEI , SHIBUE SHIGENORI
IPC分类号： G02F1/377 , H01S5/14
摘要： PROBLEM TO BE SOLVED: To obtain a watt-class and high-efficient wavelength converting laser device.
SOLUTION: The wavelength converting laser device includes: an active layer emitting laser beams; an optical resonator oscillating the laser beams; and a wavelength converter which is arranged inside the optical resonator and wave-converts the laser beams into higher harmonics and which controls the laser beams and the vertical-lateral mode of the higher harmonics and has a slab-shaped optical waveguide structure for expanding horizontally the beam diameters of the laser beams and the higher harmonics. The wavelength converter has a periodic polarization reversal structure the shape of which is approximately in parallel with the wavefront of the laser beams.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：获得瓦特级和高效波长转换激光器件。波长转换激光器件包括：发射激光束的有源层; 光谐振器使激光束振荡; 以及布置在光谐振器内的波长转换器，并且将激光束波变换成高次谐波并且控制激光束和高次谐波的垂直 - 横向模式，并且具有用于水平扩展的板状光波导结构激光束的光束直径和较高的谐波。波长转换器具有周期性极化反转结构，其形状大致与激光束的波前平行。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2010237067A Laser range finder 审中-公开
标题翻译：激光测距仪
公开(公告)号：JP2010237067A
公开(公告)日：2010-10-21
申请号：JP2009085985
申请日：2009-03-31
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOYADA YASUHARU
IPC分类号： G01S17/10 , G01C3/06
摘要： PROBLEM TO BE SOLVED: To provide a laser range finder capable of efficiently ranging processing, in the laser range finder sending a pulse laser beam and receiving the laser beam reflected by a target object, and calculating the distance to the target object based on lapsed time from the sending to receiving.
SOLUTION: The maximum peak value of receiving signals for each pulse and time from the sending to reaching to the maximum peak value is measured as periodicity of a sampling period, periodicity including the maximum integrated value is obtained by integrating the maximum peak value of two or more times of receiving signals with each other the number of the same periodicity counted, calculating the distance to the target object based on the time corresponding to the periodicity obtained. An analog circuit responding at high speed is used for measurement of the maximum peak value and the periodicity.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够进行有效测距处理的激光测距仪，在激光测距仪中发送脉冲激光束并接收由目标物体反射的激光束，并计算到目标物体的距离从发送到接收的时间过长。
解决方案：从发送到达到最大峰值的每个脉冲的接收信号的最大峰值和采样周期的周期性被测量，包括最大积分值的周期性是通过积分最大峰值接收信号的两次或更多次，计数相同周期数，根据与获得的周期相对应的时间计算到目标对象的距离。高速响应的模拟电路用于测量最大峰值和周期。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2008180921A Projection type display apparatus 审中-公开
标题翻译：投影式显示装置
公开(公告)号：JP2008180921A
公开(公告)日：2008-08-07
申请号：JP2007014449
申请日：2007-01-25
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ENDO TAKAO , NAKANO YUZO , UTAKOJI TAKESHI , KOYADA YASUHARU
IPC分类号： G03B21/10 , G03B21/14
CPC分类号： G03B21/10 , G03B21/2033 , G03B21/2086 , G03B21/28 , G03B21/62
摘要： PROBLEM TO BE SOLVED: To surely and speedily detect an abnormal output of light to outside, fall vibration, breakdown, deformation, and damage of a display device including a housing or a screen. SOLUTION: The projection type display apparatus includes: a light source 33 disposed in the housing 28 having light blocking effect, and used to generate illuminating light; a movable diaphragm 23 for adjusting a quantity of luminous flux of the illuminating light from the light source 22; a light valve 9 for adjusting a quantity of light according to an image signal and for generating image light from the illuminating light to form an image; a projecting optical system 10 for diverging the luminous flux of the image light emitted from the light valve 9; and a transmission screen 29 disposed in the window of the housing 28 and used to display the image. The projection type display apparatus further includes: first to ninth detectors 41 to 49 for detecting an abnormal output of light from the light source 22 to outside and any abnormal state in the housing 28 and transmission screen 29; a warning means 30 for informing an abnormal state by means of sound or light; and a control means 32 for controlling an internal operation when detecting an abnormal state. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：确实地并且快速地检测包括外壳或屏幕的显示装置的光的异常输出到外部，掉落的振动，破坏，变形和损坏。解决方案：投影型显示装置包括：设置在具有遮光效果的壳体28中的光源33，用于产生照明光; 用于调节来自光源22的照明光的光通量的可动光圈23; 光阀9，用于根据图像信号调节光量，并产生来自照明光的图像光以形成图像; 用于分散从光阀9发射的图像光的光通量的投影光学系统10; 以及设置在壳体28的窗口中并用于显示图像的透射屏幕29。投影型显示装置还包括：检测从光源22到外部的光的异常输出的第一至第九检测器41至49以及壳体28和透射屏29中的异常状态; 用于通过声音或光通知异常状态的警告装置30; 以及控制装置32，用于在检测异常状态时控制内部操作。版权所有（C）2008，JPO＆INPIT

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