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54 条记录 (耗时 0.013 秒)

    Biocular eyepiece optical system employing refractive and diffractive optical elements
    31.
    发明授权
    Biocular eyepiece optical system employing refractive and diffractive optical elements 失效
    使用折射和衍射光学元件的生物目镜光学系统

    公开(公告)号：US5151823A

    公开(公告)日：1992-09-29

    申请号：US764285

    申请日：1991-09-23

    申请人： Chungte W. Chen

    发明人： Chungte W. Chen

    IPC分类号： G02B3/02 ,  G02B5/18 ,  G02B13/14 ,  G02B25/00 ,  G02B27/00 ,  H01J29/89

    CPC分类号： G02B5/1895 ,  G02B13/14 ,  G02B25/001 ,  G02B27/0037 ,  G02B27/4211 ,  G02B3/02 ,  G02B5/1876 ,  H01J29/89 ,  H01J2229/893

    摘要： In one embodiment, a three-element biocular eyepiece system 40 having a first optical element 42 with at least one diffractive surface 44, a second optical element 48 having a refracting convex surface 50 and a refracting concave surface b 52 is provided. A third optical element 54 having a refracting convex surface 56 and a refracting convex surface 58 is also employed. In another embodiment, a four-element biocular system 60 is disclosed as having an optical element 62 having a refracting concave surface 64 and a refracting convex surface 66, a refractive-diffractive hybrid optical element 68 having a diffractive surface 70 and a refracting convex surface 72, an optical element 74 having a refracting convex surface 76 and a refracting concave surface 78, and an optical element 80 having a refracting concave surface 82 and a refracting convex surface 84. The diffractive surfaces 44 and 70 have a kinoform profile 102 a-d or approximated kinoform profiles 112a-d and 122a-d. Both versions of the biocular eyepiece 40 and 60 provide a biocular eyepiece which has fewer lens elements and a shorter overall length than conventional designs. Both versions of the biocular eyepiece 40 and 60 may be used in combination with a cathode ray tube 12 for magnification of images generated therein.

    Plate lens and a method for manufacturing the same
    32.
    发明授权
    Plate lens and a method for manufacturing the same 失效
    平板透镜及其制造方法

    公开(公告)号：US4509824A

    公开(公告)日：1985-04-09

    申请号：US462146

    申请日：1983-01-31

    申请人： Tetsuya Yamasaki ,  Eiji Okuda ,  Noboru Yamamoto

    发明人： Tetsuya Yamasaki ,  Eiji Okuda ,  Noboru Yamamoto

    IPC分类号： G02B3/00 ,  G09F9/30 ,  H01J29/89 ,  G02B27/00 ,  B05D5/06

    CPC分类号： G02B3/005 ,  G02B3/0056 ,  G02B3/0062 ,  G09F9/30 ,  H01J29/89 ,  H01J2229/893

    摘要： A plate lens comprising a transparent base having two flat surfaces and having a plano-convex lens portion which is formed integrally with the transparent base, which has a refractive index greater than that of the transparent base and which has a substantially semicircular or circular section in a direction perpendicular to the flat surfaces of the transparent base. The plate lens has a light-shielding layer on one surface of the transparent base, as needed. The light-shielding layer covers one surface of the transparent base such that a transparent portion may be formed in the vicinity of a position opposing the central point or line of the plano-convex lens portion. The plate lens provides a clear and bright image and is therefore applicable to faceplates for various types of display devices, CRTs and the like. The plate lens may be mass-produced at low cost.

    摘要翻译： 一种平板透镜，包括具有两个平坦表面的透明基底，并且具有与透明基底一体形成的平凸透镜部分，其具有大于透明基底的折射率的折射率，并且具有基本上半圆形或圆形的部分 垂直于透明基底的平坦表面的方向。 根据需要，平板透镜在透明基底的一个表面上具有遮光层。 遮光层覆盖透明基底的一个表面，使得透明部分可以形成在与平凸透镜部分的中心点相对的位置附近。 平板透镜提供清晰明亮的图像，因此适用于各种显示装置，CRT等的面板。 板状透镜可以以低成本批量生产。

    Television activated light display
    34.
    发明授权
    Television activated light display 失效
    电视活动灯显示

    公开(公告)号：US3646266A

    公开(公告)日：1972-02-29

    申请号：US3646266D

    申请日：1970-06-08

    申请人： LIGHTYEARS INC

    发明人： HASSELL JON M

    IPC分类号： H01J29/89

    CPC分类号： H01J29/89 ,  H01J2229/893

    摘要： A closely spaced array of forward projecting convex lens elements larger than three-eighths inch in diameter are mounted in an opaque screen which is placed over the picture tube of a television so that the lens elements provide a nonobjective light display.

    摘要翻译： 大于直径大于三分之八英寸的向前突出的凸透镜元件的紧密排列的阵列安装在放置在电视机的显像管上方的不透明屏幕中，使得透镜元件提供非目标的光显示。