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    • 9. 发明申请
    • EYEPIECE LENS SYSTEM AND IMAGE OBSERVATION DEVICE
    • EYEPIECE镜头系统和图像观察装置
    • US20140218806A1
    • 2014-08-07
    • US14240840
    • 2012-08-22
    • Kenichi Ishizuka
    • Kenichi Ishizuka
    • G02B25/00
    • G02B25/001G02B13/22G02B27/0172G02B27/027
    • An eyepiece lens system forms a magnified virtual image of an object to be observed, the system including: a first group disposed adjacent to an image display device and having negative refractive power; and a second group disposed adjacent to the first group on a side closer to an eye and having positive refractive power; the first group including a cemented doublet lens of a biconcave lens and a biconvex lens, the second group including two or three positive lenses, being telecentric on the object side. The eyepiece lens system has satisfactory telecentricity on the object side and satisfactorily corrects aberration.
    • 目镜透镜系统形成被观察物体的放大虚像,该系统包括:与图像显示装置相邻并且具有负屈光力的第一组; 以及第二组,在靠近眼睛的一侧邻近所述第一组布置并具有正的折射力; 第一组包括双凹透镜的胶合双透镜和双凸透镜,第二组包括两个或三个正透镜,在物体侧是远心的。 目镜透镜系统在物体侧具有令人满意的远心度,令人满意地校正像差。