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    FIELD-OF-VIEW CONTROLLING ARRANGEMENTS
    12.
    发明申请
    FIELD-OF-VIEW CONTROLLING ARRANGEMENTS 审中-公开
    视场控制安排

    公开(公告)号：US20020163729A1

    公开(公告)日：2002-11-07

    申请号：US10057916

    申请日：2002-01-29

    申请人： Kenneth J. Myers

    发明人： Kenneth J. Myers

    IPC分类号： G02B005/02

    CPC分类号： H01J29/89 ,  G02B5/045 ,  G06F1/1601 ,  G06F1/1609 ,  H01J2329/897

    摘要： A field-of-view controlling arrangement such as a privacy screen includes a single microprism or lenticular sheet having a plurality of sets of parallel surfaces that intersect to form prisms or lenticular structures, and in which field-of-view control is achieved by (i) for sheets made up of parallel nullone-dimensionalnull microprism or lenticular structures having at least two intersecting sets of mutually parallel surfaces, altering at least two sets of the mutually parallel surfaces, and/or portions of the at least two sets of mutually parallel surfaces, by applying a light-attenuating treatment, (ii) for sheets made up of polyhedral lenticular structures having at least three intersecting sets of mutually parallel surfaces, or at least one set of curved surfaces extending in directions transverse to directions in which the field-of-view is to be limited, altering at least one set of the mutually parallel or curved surfaces by applying a light-attenuating treatment, or (iii) for any type of microprism or lenticular sheet, including a diffusing agent in at least a portion of the sheet, and arranging the surfaces of the microprism or lenticular sheet so that light transmitted along selected optical paths is attenuated before exiting the sheet.

    摘要翻译： 诸如隐私屏幕的视场控制装置包括具有多个平行表面的单个微棱镜或双凸透镜片，其相交以形成棱镜或透镜结构，并且其中视野控制由 i）对于由平行的“一维”微棱镜或透镜结构构成的片材，其具有至少两个相互平行的相交平面的相交组，改变至少两组相互平行的表面，和/或至少两组相互平行的表面的部分， 相互平行的表面，通过施加光衰减处理，（ii）由具有至少三个相互平行的表面的相交组的多面体透镜结构构成的片，或至少一组沿垂直于 视野被限制，通过施加光衰减处理来改变至少一组相互平行或弯曲的表面，或（iii）对于任何典型的 微米棱镜或双凸透镜片，其包括在片材的至少一部分中的扩散剂，并且布置微棱镜或透镜片的表面，使得沿着所选光路传输的光在离开片材之前被衰减。