SCREEN VIBRATION FOR REDUCING SPECKLE
    2.
    发明公开
    SCREEN VIBRATION FOR REDUCING SPECKLE 审中-公开
    屏幕振动减少散斑

    公开(公告)号:EP3191893A1

    公开(公告)日:2017-07-19

    申请号:EP15839275.3

    申请日:2015-09-08

    申请人: RealD Inc.

    IPC分类号: G03B21/56

    CPC分类号: G03B21/562 G02B27/48

    摘要: The present disclosure provides discussion of screen vibration to reduce speckle in display applications and/or projection screens. Electrical transducers or reactors may be used with a screen to reduce or remove speckle in projection screens and/or display applications. Electrical transducers may not be directly mounted to a screen, thus eliminating many mechanical failure modes associated with a vibrating transducer as well as resulting in a much quieter operation. By design, the reactors or transducers may actually contact the screen, and can take up less than one square inch of screen surface each, than previous designs, which may be outside of the active viewing area and within 12 inches of the screen border, preferably less than approximately 1 inch from screen edge. The reactors are magnets, though any ferrous material can be made to work with certain operating conditions.

    摘要翻译: 本公开提供了屏幕振动的讨论以减少显示应用和/或投影屏幕中的斑点。 电子传感器或电抗器可与屏幕一起使用,以减少或消除投影屏幕和/或显示应用中的斑点。 电气传感器可能不会直接安装在屏幕上,从而消除了许多与振动传感器相关的机械故障模式,并导致更安静的操作。 通过设计,反应器或换能器实际上可以接触屏幕,并且可以比以前的设计占用不到一平方英寸的屏幕表面,所述先前的设计可以在有效观看区域之外并且在屏幕边框的12英寸内,优选地 距屏幕边缘不到约1英寸。 反应堆是磁铁,但任何铁质材料都可以在某些工作条件下工作。

    SYSTEM AND METHOD FOR VIBRATING SCREENS TO REDUCE SPECKLE
    4.
    发明公开
    SYSTEM AND METHOD FOR VIBRATING SCREENS TO REDUCE SPECKLE 审中-公开
    系统VERFAHRENFÜRVIBRIERENDE SCHIRME ZUR REDUZIERUNG VON SPECKLE

    公开(公告)号:EP3005688A1

    公开(公告)日:2016-04-13

    申请号:EP14807731.6

    申请日:2014-06-06

    申请人: RealD Inc.

    IPC分类号: H04N5/74 G03B21/56

    摘要: The present disclosure includes systems and methods for solving speckle problems by exciting the screen with a more complex vibration spectrum. A range of frequencies provides, in effect, a collection of overlapping patterns of high and low displacement, so that all regions of the screen have enough motion to reduce visible speckle. As previously discussed acceptable speckle may be approximately 15% contrast or less, preferably approximately 5% contrast or less at approximately 15 feet from the screen.

    摘要翻译: 本公开包括通过以更复杂的振动谱激发屏幕来解决斑点问题的系统和方法。 频率范围实际上提供了高和低位移的重叠图案的集合,使得屏幕的所有区域具有足够的运动以减少可见斑点。 如前所述,可接受的斑点可以在距离屏幕约15英尺处约15%的对比度或更小,优选约5%的对比度或更小。