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    • 3. 发明专利
    • Semiconductor ring laser gyro
    • SEMICONDUCTOR RING LASER GYRO
    • JP2009031163A
    • 2009-02-12
    • JP2007196551
    • 2007-07-27
    • Minebea Co Ltdミネベア株式会社
    • KITAMURA ATSUSHI
    • G01C19/72H01S3/083
    • G01C19/66
    • PROBLEM TO BE SOLVED: To provide a semiconductor ring laser gyro that is inexpensive, is easily manufactured, is less affected by a disturbance, and has stable measurement accuracy.
      SOLUTION: This semiconductor ring laser gyro 1 includes a semiconductor laser 2 for emitting light from both end surfaces, one or more reflecting prisms 6-8 for receiving the outgoing light from both end surfaces of the semiconductor laser 2 and internally reflecting it, a transmission mirror 9 for transmitting, through a reflecting surface 7a of a rectangular prism 7, part of CW light clockwise revolving a light revolving path formed of a plurality of reflecting surfaces on one or more reflecting prisms 6-8 and CCW light counterclockwise revolving it, and a beam multiplexing prism 10 for multiplexing the CW light and CCW light having transmitted through the transmission mirror 9.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供廉价的,容易制造的半导体环形激光陀螺仪,受到干扰的影响较小,并且具有稳定的测量精度。 解决方案:该半导体环形激光陀螺仪1包括用于从两个端面发射光的半导体激光器2,一个或多个反射棱镜6-8,用于接收来自半导体激光器2的两个端面的出射光并将其内部反射 ,透射反射镜9,其通过矩形棱镜7的反射面7a透射,在一个或多个反射棱镜6-8上顺时针旋转由多个反射面形成的光回转路径的CW光的一部分,逆时针旋转的CCW光 以及用于多路复用通过透射反射镜9的CW光和CCW光的光束复用棱镜10.版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Angular velocity detector
    • 角速度检测器
    • JPS5947787A
    • 1984-03-17
    • JP15869182
    • 1982-09-10
    • Japan Aviation Electronics Ind Ltd
    • INUI KATSUAKI
    • G01C19/66H01S3/083
    • G01C19/66
    • PURPOSE:To enable to make a piece of mirror block having a ring form groove sufficient by a method wherein only one mirror of a plurality of mirrors which compose a photo closed loop is formed in a structure wherein the alternations of advance-retreat direction and angles can be performed. CONSTITUTION:When the mirror block 3b is decided as a just plane mirror, and the ring form groove 14 is formed in the mirror block 3c, the detector is so constructed that the length of an optical path is controlled by moving a mirror surface 3c' of the mirror block 3c wherein the ring form groove 14 is formed in advance-retreat direction by a means 11 of controlling the length of the optical path, and that the angle of the mirror surface 3c' is controlled by a lock-in control means adhered at a thin part formed in the mirror block 3c. For example, the case of construction by sticking ring form piezoelectric elements 16a and 16b on the back surface of a member 17 mounted on the back surface side of the mirror block 3c is shown. When the outside piezoelectric element 16b is so deformed as to expand by shrinking the inside piezoelectric element 16a, the member 17 deforms and thus makes the mirror surfaces 3c' project toward the inside the block.
    • 目的:为了能够通过一种方法制造具有环形凹槽足够的镜片块,其中仅构成组成光闭环的多个反射镜的一个反射镜形成为其中前进后退方向和角度的改变 可以执行。 构成:当镜面块3b被确定为正平面镜,并且环形凹槽14形成在反射镜块3c中时,检测器被构造成通过移动镜面3c'来控制光路的长度, 其中通过控制光路长度的装置11在前后方向上形成环形槽14,并且镜面3c'的角度由锁定控制装置 粘附在形成在镜块3c中的薄部分。 例如,示出了在安装在镜块3c的背面侧的构件17的背面上通过粘结环构造压电元件16a和16b的情况。 当外部压电元件16b通过收缩内部压电元件16a而变形而变形时,构件17变形,从而使镜面3c'朝向块的内侧突出。
    • 8. 发明专利
    • Fiber ring laser and fiber ring laser gyroscope using it
    • 纤维环激光和光纤环激光陀螺仪使用它
    • JP2010062224A
    • 2010-03-18
    • JP2008224022
    • 2008-09-01
    • Central Glass Co Ltdセントラル硝子株式会社
    • KUBOTA YOSHINORIOKAMOTO HIDEYUKIKASUGA TAKESHIHARA IKUNARI
    • H01S3/083G01C19/66H01S3/094
    • G01C19/66G01C19/72H01S3/067H01S3/06791
    • PROBLEM TO BE SOLVED: To provide a fiber ring laser useful for angular velocity instrumentation, distance instrumentation, surface topography instrumentation, display, image projection, high precision machining, and the like, and directly laser oscillating a short wavelength, and also to provide a small fiber ring laser gyroscope utilizing it. SOLUTION: In a fiber ring laser having a pump source which excites a gain medium, at least one closed ring resonator (ring laser resonator), and a fiber added with rare earth as the gain medium in the ring laser resonator, a fiber having a core to which at least one kind of rare earth selected from Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, or Tm is used as the fiber with rare earth added thereto, and the oscillation wavelength of laser is a short wavelength of less than 1 μm. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于角速度仪器,距离仪表,表面形貌仪器仪表,显示,图像投影,高精度加工等的光纤环形激光器,并且直接激光振荡短波长,还可以 以提供利用它的小型光纤环激光陀螺仪。 解决方案:在具有激发增益介质的泵浦源的光纤环形激光器中,至少一个闭环谐振器(环形激光谐振器)和在环形激光谐振器中作为增益介质添加稀土的光纤, 使用具有选自Pr,Nd,Sm,Eu,Tb,Dy,Ho,Er或Tm中的至少一种稀土的纤维作为添加有稀土的纤维,激光的振荡波长 是小于1μm的短波长。 版权所有(C)2010,JPO&INPIT
    • 9. 发明专利
    • Semiconductor ring laser gyro
    • SEMICONDUCTOR RING LASER GYRO
    • JP2010048557A
    • 2010-03-04
    • JP2008210260
    • 2008-08-19
    • Minebea Co Ltdミネベア株式会社
    • KITAMURA ATSUSHISUGAWARA MIKI
    • G01C19/72H01S3/083
    • G01C19/66
    • PROBLEM TO BE SOLVED: To provide a high performance semiconductor ring laser gyro although it is small and inexpensive. SOLUTION: The semiconductor ring laser gyro 1 includes: a semiconductor laser 2 emitting light from both end faces; an optical fiber ring 3 which circulates the light emitted from both the end faces of the semiconductor laser in opposite directions, the optical fiber ring 3, together with the semiconductor laser, constituting a resonator; and a photodetector part 9 for detecting the rotational angular velocity from beat frequencies of the two lights circulated in the optical fiber in the opposite directions. The optical fiber ring 3 includes a sensing coil 6 constituted by multiply winding the optical fiber around a cylindrical bobbin. The total length L of the optical fiber is set at a length so that a ring resonance frequency F rlg (=C/nL) and a beat frequency ΔF beat (=2rΩ/nλ) satisfy 2ΔF beat_max rlg ≤10ΔF beat_min . COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种高性能的半导体环形激光陀螺仪,尽管它小而便宜。 解决方案:半导体环形激光陀螺仪1包括:从两个端面发射光的半导体激光器2; 使从半导体激光器的两端面向相反方向发射的光使光纤环3与构成谐振器的半导体激光器循环的光纤环3; 以及光检测器部分9,用于检测沿相反方向在光纤中循环的两个光的拍频的旋转角速度。 光纤环3包括感测线圈6,该感测线圈6通过将光纤围绕圆柱形线轴卷绕而构成。 光纤的总长度L被设定为使得环路谐振频率F (= C / nL)和拍频ΔF(=2rΩ)的长度 /nλ)满足2ΔF beat_max rlg ≤10ΔF beat_min 。 版权所有(C)2010,JPO&INPIT