SOURCE CONDITIONING FOR IMAGING DIRECTIONAL BACKLIGHTS
    32.
    发明公开
    SOURCE CONDITIONING FOR IMAGING DIRECTIONAL BACKLIGHTS 审中-公开
    源处理对于图回头看灯

    公开(公告)号:EP2850359A1

    公开(公告)日:2015-03-25

    申请号:EP13790013.0

    申请日:2013-05-17

    申请人: RealD Inc.

    IPC分类号: F21S2/00 F21V8/00 G02F1/13357

    摘要: Disclosed is an imaging directional backlight apparatus for providing large area uniform directed illumination from localized light sources. Within an exemplary optical valve system, a waveguide comprises a stepped structure, where the steps comprise extraction features hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality. Illumination uniformity is provided by the positioning, packaging, and optically modifying of individual input sources. The latter employs non-imaging and refractive optics.

    DIRECTIONAL FLAT ILLUMINATORS
    33.
    发明公开
    DIRECTIONAL FLAT ILLUMINATORS 审中-公开
    GERICHTETE FLACHE BELEUCHTUNGSELEMENTE

    公开(公告)号:EP2641121A2

    公开(公告)日:2013-09-25

    申请号:EP11842021.5

    申请日:2011-11-18

    申请人: RealD Inc.

    IPC分类号: G02B27/22 G02B26/00 G02F1/01

    摘要: Disclosed is an optical valve or light valve for providing large area collimated illumination from localized light sources, and system and method thereof for 2D, 3D, and/or autosteroscopic displays. An optical valve may include a stepped structure, in which the steps include separated extraction features which may be optically hidden to light propagating in a first direction. Light propagating in a second direction may be refracted, diffracted, or reflected by the features to provide illumination beams exiting from the top surface of the optical valve. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality.

    摘要翻译: 公开了一种用于从局部光源提供大面积准直照明的光阀或光阀,以及用于2D,3D和/或自动照相显示器的系统及其方法。 光阀可以包括阶梯式结构,其中步骤包括分离的提取特征,其可以对于在第一方向上传播的光可以隐藏光学隐藏。 沿第二方向传播的光可以由特征折射,衍射或反射,以提供从光阀的顶表面离开的照明光束。 这种受控照明可以提供有效的多用户自动立体显示器以及改进的2D显示功能。