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    • 12. 发明授权
    • Collapsible microfiche reader assembly especially suitable for use in a
desk drawer
    • 可折叠缩微胶片阅读器组件,特别适用于书桌抽屉
    • US4351592A
    • 1982-09-28
    • US127239
    • 1980-03-04
    • William T. LinkSteven R. RunyanStephen Hobson
    • William T. LinkSteven R. RunyanStephen Hobson
    • G03B21/11G03B21/30
    • G03B21/30G03B21/115
    • A microfiche reader assembly especially suitable for use in a desk drawer of typical size is disclosed herein. This assembly includes a housing, a projection screen, a microfiche support arrangement for supporting a microfiche for movement within a given rectangular operating area and an optical arrangement cooperating with the supported microfiche for projecting an enlarged image of a section of the microfiche on to the screen when the microfiche is in its operating area. While this assembly requires more room than the standard desk drawer allots during use, it is made sufficiently collapsible to fit entirely within the confines of the drawer when not in use so as to allow the drawer to be closed. However, at the same time, the assembly is expandable for use within the drawer when the latter is opened, whereby the assembly does not have to be removed.
    • 本文公开了一种特别适合用于典型尺寸的台式抽屉的缩微胶片读取器组件。 该组件包括壳体,投影屏幕,用于支撑缩微胶片以在给定的矩形操作区域内移动的缩微胶片支撑装置,以及与所支撑的缩微胶片配合的光学装置,用于将缩微胶片的一部分的放大图像投影到屏幕上 当缩微胶片处于其操作区域时。 虽然这个组件在使用过程中需要比标准书桌抽屉分配的空间更多的空间,但是当不使用时,它被充分地折叠以完全地配合在抽屉的限制内,以允许抽屉被关闭。 然而,同时,当打开组件时,组件可扩展以在抽屉内使用,由此组件不必被移除。
    • 13. 发明授权
    • Lens arrangements for microfiche reader assembly and method
    • 微胶片阅读器组件和方法的镜头布置
    • US4339181A
    • 1982-07-13
    • US127230
    • 1980-03-04
    • William T. LinkStephen Hobson
    • William T. LinkStephen Hobson
    • G03B3/00G03B21/11G03B21/14
    • G03B3/00G03B21/115
    • A microfiche reader is disclosed herein and includes an assembly for supporting a microfiche in a given area, a projection screen and an optical arrangement for providing an image of a segment of the microfiche on the screen. This arrangement utilizes a dual projection lens assembly and a dual condenser lens assembly which cooperate with one another so that the magnification of the projected image can be easily varied between two levels. As disclosed, the dual projection lens assembly itself includes two distinct projection lenses which are contained in collapsible housings. Moreover, each of these latter lenses is adjustably focused by rotational movement of its associated housing and remains in the focusing position selected unless its housing is again rotated.
    • 本文公开了一种缩微胶片读取器,并且包括用于在给定区域中支撑缩微胶片的组件,投影屏幕和用于在屏幕上提供微胶片的片段的图像的光学装置。 这种布置使用双投影透镜组件和双聚光透镜组件,其彼此配合,使得投影图像的放大倍率可以容易地在两个水平之间变化。 如所公开的,双投影透镜组件本身包括容纳在可折叠外壳中的两个不同的投影透镜。 此外,这些后一个透镜中的每一个通过其相关联的壳体的旋转运动可调节地聚焦,并且保持在所选择的聚焦位置,除非其壳体再次旋转。