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    • 81. 发明授权
    • Compact photographing lens
    • 紧凑型拍摄镜头
    • US06728047B2
    • 2004-04-27
    • US10374398
    • 2003-02-26
    • Hiroshi SatoEtsuro Kawakami
    • Hiroshi SatoEtsuro Kawakami
    • G02B912
    • G02B13/006G02B9/40G02B13/0035
    • This invention is related to a compact photographing lens wherein an aperture stop is arranged at a position closest to an object, a first lens group, a second lens group, and a third lens group are arranged sequentially from the object side, the first lens group is formed by arranging, sequentially from the object side, a first lens having a positive refracting power and a second lens having a negative refracting power and bonded to the first lens, the second lens being formed from a meniscus lens with a concave surface facing the object side, the second lens group is formed from only a third lens as a meniscus lens which has at least one aspherical refracting surface and a concave surface facing the object side, the third lens group is formed from only a fourth lens as a meniscus lens which has at least one aspherical refracting surface and a convex surface facing the object side.
    • 本发明涉及一种小型拍摄镜头,其中孔径光阑被布置在最靠近物体的位置,第一透镜组,第二透镜组和第三透镜组从物体侧依次布置,第一透镜组 通过从物体侧依次布置具有正折射率的第一透镜和具有负折射率的第二透镜并结合到第一透镜,第二透镜由具有面向第一透镜的凹面的弯月形透镜形成, 物镜侧,第二透镜组仅由具有至少一个非球面折射表面和面向物体侧的凹面的弯月形透镜形成,第三透镜​​组仅由作为弯月形透镜的第四透镜形成 其具有至少一个非球面折射表面和面向物体侧的凸形表面。
    • 89. 发明授权
    • Method and apparatus for detecting tire revolution using magnetic field
    • 使用磁场检测轮胎转速的方法和装置
    • US06246226B1
    • 2001-06-12
    • US09547887
    • 2000-04-12
    • Masahiro KawaseShinichi TazakiHitoshi KanekoHiroshi SatoNorihisa Urayama
    • Masahiro KawaseShinichi TazakiHitoshi KanekoHiroshi SatoNorihisa Urayama
    • G01P344
    • G01P3/487B60C2019/005
    • A tire (12) used includes a steel belt in its outer circumferential portion. A magnetic sensor (14) including a pair of magnetic detection elements (18A, 18B), which are arranged so that their magnetic detection directions become parallel to each other or series each other, is set in the vicinity of a rear tire (12) in a trunk room of a vehicle (10). Changes in magnetic field upon revolution of the tire (12) are differentially detected by the magnetic detection elements (18A, 18B), and the revolution of the tire (12) is detected on the basis of the differentially detected output waveform. Among a plurality of peaks present in the differentially detected output waveform, a peak, the potential difference from the immediately preceding peak of which is equal to or larger than a predetermined threshold value, is detected as an effective peak, which is effective for tire revolution detection, and the revolution speed of the tire is calculated by detecting the number of effective peaks.
    • 使用的轮胎(12)在其外周部分包括钢带。 在后轮胎(12)的附近设置包括一对磁检测元件(18A,18B)的磁传感器(14),被配置为使得它们的磁检测方向相互平行或彼此串联, 在车辆(10)的行李箱中。 通过磁检测元件(18A,18B)差别地检测轮胎(12)转动时的磁场变化,并且基于差分检测的输出波形来检测轮胎(12)的旋转。 在差分检测输出波形中存在的多个峰中,检测出与先前峰值的电位差等于或大于预定阈值的峰值作为对轮胎转速有效的有效峰值 通过检测有效峰值的数量来计算轮胎的转速。
    • 90. 发明授权
    • Method and apparatus for detecting wheel revolution using magnetic field
    • 使用磁场检测车轮转速的方法和装置
    • US06232767B1
    • 2001-05-15
    • US08915858
    • 1997-08-21
    • Masahiro KawaseShinichi TazakiHitoshi KanekoHiroshi SatoNorihisa Urayama
    • Masahiro KawaseShinichi TazakiHitoshi KanekoHiroshi SatoNorihisa Urayama
    • G01P3487
    • G01P3/487B60C2019/005
    • A tire (12) used includes a steel belt in its outer circumferential portion. A magnetic sensor (14) including a pair of magnetic detection elements (18A, 18B), which are arranged so that their magnetic detection directions become parallel to each other or series each other, is set in the vicinity of a rear tire (12) in a trunk room of a vehicle (10). Changes in magnetic field upon revolution of the tire (12) are differentially detected by the magnetic detection elements (18A, 18B), and the revolution of the tire (12) is detected on the basis of the differentially detected output waveform. Among a plurality of peaks present in the differentially detected output waveform, a peak, the potential difference from the immediately preceding peak of which is equal to or larger than a predetermined threshold value, is detected as an effective peak, which is effective for tire revolution detection, and the revolution speed of the tire is calculated by detecting the number of effective peaks.
    • 使用的轮胎(12)在其外周部分包括钢带。 在后轮胎(12)的附近设置包括一对磁检测元件(18A,18B)的磁传感器(14),被配置为使得它们的磁检测方向相互平行或彼此串联, 在车辆(10)的行李箱中。 通过磁检测元件(18A,18B)差别地检测轮胎(12)转动时的磁场变化,并且基于差分检测的输出波形来检测轮胎(12)的旋转。 在差分检测输出波形中存在的多个峰中,检测出与先前峰值的电位差等于或大于预定阈值的峰值作为对轮胎转速有效的有效峰值 通过检测有效峰值的数量来计算轮胎的转速。