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    • 65. 发明授权
    • Epidark illumination system
    • Epidark照明系统
    • US4475796A
    • 1984-10-09
    • US355144
    • 1982-03-05
    • Tadashi Kimura
    • Tadashi Kimura
    • G02B21/18G02B21/08G02B21/10
    • G02B21/084G02B21/10
    • An Epidark illumination system wherein an optical member for forming the image of a light source is provided in a dark field light path to illuminate a sample with the light from the image of the light source in order to be able to make a uniform bright illumination with a simple formation. The optical member can be any of a ring-shaped convex lens or concave lens, a ring-shaped multi-element lens made by arranging a plurality of convex lenses or concave lenses in the same plane, a compound cylindrical lens made by concentrically circularly arranging cylindrical lenses, a radial lens and a multi-element lens made by arranging a plurality of concentric ring-shaped lenses so that the surfaces of the lenses may be higher in turn outward from the center. Further, a light collecting lens or a light collecting mirror may be arranged in the dark field light path.
    • 一种Epidark照明系统,其中用于形成光源的图像的光学构件设置在暗场光路中,以利用来自光源的图像的光来照射样品,以便能够进行均匀的亮度照明 一个简单的形式。 光学构件可以是环形凸透镜或凹透镜中的任何一种,通过在同一平面上布置多个凸透镜或凹透镜而制成的环形多元透镜,通过同心圆形布置 柱面透镜,径向透镜和通过布置多个同心环形透镜制成的多元件透镜,使得透镜的表面可以从中心向外更高。 此外,集光镜或聚光镜可以布置在暗视场光路中。
    • 66. 发明授权
    • Zoom lens system
    • 变焦镜头系统
    • US4368953A
    • 1983-01-18
    • US166683
    • 1980-07-07
    • Tadashi Kimura
    • Tadashi Kimura
    • G02B15/16G02B13/04G02B15/14
    • G02B15/14G02B13/04
    • A zoom lens system comprising a front lens group consisting of a first positive lens component, a second negative meniscus lens component, a third negative lens component and a fourth positive lens component, and a rear lens group consisting of a fifth positive lens component, a sixth positive lens component, a seventh negative lens component and an eighth positive lens component. Said zoom lens system is so adapted as to perform zooming operation by varying the airspace reserved between said front and rear lens groups, and has sufficient wide-angle effect and a large zooming ratio in addition to aberrations corrected with good balance.
    • 一种变焦透镜系统,包括由第一正透镜部件,第二负弯月形透镜部件,第三负透镜部件和第四正透镜部件组成的前透镜组以及由第五正透镜部件, 第六正透镜部件,第七负透镜部件和第八正透镜部件。 所述变焦透镜系统适于通过改变保留在所述前后透镜组之间的空间进行变焦操作,并且除了以良好平衡校正的像差之外,还具有足够的广角效果和大的变焦比。