Perforated film constructions for backlit signs
    5.
    发明授权
    Perforated film constructions for backlit signs 有权
    用于背光标志的穿孔电影结构

    公开(公告)号:US06767609B2

    公开(公告)日:2004-07-27

    申请号:US09835725

    申请日:2001-04-16

    IPC分类号: B32B324

    摘要: The present invention provides perforated film constructions, sign faces including the film constructions, and signs including the sign faces, all of which are capable of having one appearance under light ambient lighting conditions, and another appearance when backlit under dark ambient lighting conditions. The construction is generally planar and includes perforations that occupy, e.g., about 10-35% of the major surfaces of the construction. The perforations are separated by an opaque land area. The back surface of the film construction in the land area (i.e., the surface that is adapted to face the interior of the sign) reflects, e.g., at least about 50% of normal light incident thereon.

    摘要翻译: 本发明提供了多孔膜结构,包括膜结构的标志面,以及包括符号面的标志,所有这些符号面都能够在环境光照条件较弱的情况下具有一种外观,而在暗环境照明条件下背光也可以是另一种外观。 该结构通常是平面的,并且包括占据例如构造的主要表面的约10-35%的穿孔。 穿孔由不透明的陆地区域分开。 在陆地区域(即,适于面向标志内部的表面)上的膜结构的背面反映例如入射到其上的正常光的至少约50%。

    Illuminated sign with lamp masks for uniform illumination
    6.
    发明授权
    Illuminated sign with lamp masks for uniform illumination 有权
    带灯罩的照明标志,用于均匀照明

    公开(公告)号:US06416201B1

    公开(公告)日:2002-07-09

    申请号:US09539820

    申请日:2000-03-31

    IPC分类号: F21V1114

    CPC分类号: G09F13/04 G09F13/0409

    摘要: An illuminated sign system provides uniform illumination over the lamp face by using partially transmissive lamp masks located between the lamps and the sign face. The sign face itself also diffusely reflects at least a majority of light incident on its second surface back towards the interior of the sign. The lamp spacing ratio in the illuminated signs can be increased, e.g., to a ratio of 3:1 or more, and, possibly, to a ratio of 4:1 or more.

    摘要翻译: 照明标志系统通过使用位于灯和标志面之间的部分透射的灯罩来提供灯表面上的均匀照明。 标志面本身还将至少大部分的光反射到其第二表面上朝向标志的内部。 照明标志中的灯间隔比可以增加,例如比例为3:1或更大,并且可能增加到4:1或更大的比率。

    Low-loss face diffuser films for backlit signage and methods for using same
    7.
    发明授权
    Low-loss face diffuser films for backlit signage and methods for using same 失效
    用于背光标牌的低损面扩散膜及其使用方法

    公开(公告)号:US06282821B1

    公开(公告)日:2001-09-04

    申请号:US09104874

    申请日:1998-06-25

    IPC分类号: G09F1300

    摘要: A low-loss, diffuser film is provided for translucent surface(s) of lighted signage. The film has little absorptivity and has partial transmissivity and partial reflectivity. Luminance efficiency and brightness are significantly improved over conventional films used in backlit signage. A luminance efficiency prediction equation is also provided to aid in selection of diffuser films and interior surfaces of the lighted sign cavity. A combination of effects of diffuser films and a diffuse reflective films lining the interior surfaces of the lighted sign cavity is unexpectedly greater than their sum of effects operating alone.

    摘要翻译: 提供低损耗漫射膜用于发光标牌的半透明表面。 该膜具有很小的吸收率,具有部分透射率和部分反射率。 与背光标牌中使用的常规薄膜相比,亮度效率和亮度明显提高。 还提供亮度效率预测方程以帮助选择扩散膜和点燃的标志腔的内表面。 漫射膜和照亮标志腔的内表面之间的漫反射膜的效果的组合意外地大于其单独操作的总和。

    Automatic scroll sign
    8.
    发明授权
    Automatic scroll sign 失效
    自动滚动标志

    公开(公告)号:US4110925A

    公开(公告)日:1978-09-05

    申请号:US782027

    申请日:1977-03-28

    IPC分类号: G09F11/00 G09F11/29

    摘要: A sign cabinet having a scroll movably mounted on rollers for movement past a display opening in the cabinet. A torsion spring acts on one of the rollers to compensate for differences in the rate of movement of the scroll at the two rollers. An electronic control circuit automatically senses the position of the scroll and is actuated by the position information for controlling the operation of the scroll. The modes of operation include: continuously moving back and forth between preselected end points within the scroll; moving back and forth within a predetermined section within the end points, stopping at preselected frames within the section; and, advancing from one frame or section to another.