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    • 74. 发明授权
    • Golf ball
    • 高尔夫球
    • US5735757A
    • 1998-04-07
    • US670494
    • 1996-06-27
    • Keiji Moriyama
    • Keiji Moriyama
    • A63B37/00A63B37/14
    • A63B37/0004A63B37/0012A63B37/0017A63B37/0018A63B37/002A63B37/0021A63B37/0064A63B37/0074A63B37/008A63B37/0087
    • A golf ball of the present invention has a plurality of dimples on its surface. The dimples accounting for not less than twenty percent of a total number of dimples have a double radius shape in which the curvature of the bottom wall portion and the curvature of the peripheral wall portions extending from the upper end of the bottom wall portion to the opening of the dimple are different from each other. The double radius shape is set so that the relationship between a diameter D1 at the opening of the dimple and a diameter D2 at the inflection point falls within 0.95.gtoreq.D2/D1.gtoreq.0.50 and the relationship between the depth F to the deepest point of the dimple and the depth C to the inflection point falls within 1.00>C/F.gtoreq.0.85.
    • 本发明的高尔夫球在其表面上具有多个凹坑。 占凹坑总数不少于百分之二十的凹坑具有双半径形状,其中底壁部分的曲率和周壁部分的曲率从底壁部分的上端延伸到开口 的凹坑彼此不同。 设定双半径形状,使得凹坑开口处的直径D1与拐点处的直径D2之间的关系落在0.95> / = D2 / D1> / 0.50内,并且深度F与 凹点的最深点和拐点的深度C落在1.00> C / F> / = 0.85之内。
    • 76. 发明授权
    • Focus detecting device
    • 对焦检测装置
    • US5583604A
    • 1996-12-10
    • US392191
    • 1995-02-22
    • Keiji Moriyama
    • Keiji Moriyama
    • G03B13/36G02B7/34
    • G02B7/346
    • With a focus detection device equipped with focus detecting optical systems with focus detection areas both on and outside the optical axis of the photographic surface, a focus detection device suppresses vignetting of the focus detection light fluxes through incompatibilities with the exit pupil of the installed objective lens and has stable focus detection accuracy. With a focus detection device equipped with at least two focus detecting optical systems and on each focus detecting optical system, which forms the image that comes through the objective lens for each focus detecting optical system as a second image on a set of photoelectric transforming element arrays, and which carries out focus detection of the objective lens through relative position of the second image, reverse projections through the condenser lens of the diaphragm openings opposite the focus detecting optical systems with focus detection areas outside the optical axis of the photographic surface face toward the optical axis of the objective lens and cross the optical axis.
    • 利用配备有焦点检测光学系统的焦点检测装置,其中焦点检测区域在照相表面的光轴上和外部,焦点检测装置通过与安装的物镜的出射光不兼容来抑制焦点检测光束的渐晕 并具有稳定的对焦检测精度。 利用配备有至少两个焦点检测光学系统的焦点检测装置,并且在每个焦点检测光学系统上,其将形成每个焦点检测光学系统的物镜的图像作为一组光电转换元件阵列上的第二图像 并且通过第二图像的相对位置进行物镜的焦点检测,通过与聚焦检测光学系统相对的光阑开口的聚光透镜的反向投影,其中焦点检测区域在照相表面的光轴外侧朝向 物镜的光轴并与光轴交叉。