公开(公告)号：EP2850486A1

公开(公告)日：2015-03-25

申请号：EP13790141.9

申请日：2013-05-15

Applicant: RealD Inc.

Inventor： WOODGATE, Graham, John ,  ROBINSON, Michael, G. ,  HARROLD, Jonathan ,  SCHUCK, Miller, H.

IPC: G02F1/13357 ,  F21S2/00 ,  F21V8/00

Abstract: Disclosed is a light guiding valve apparatus including at least one transparent stepped waveguide optical valve for providing large area collimated illumination from localized light sources, and at least one further illumination source. A stepped waveguide may be a stepped structure, where the steps include 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. Light from a separate illumination source may pass through the transparent stepped waveguide optical valve to provide at least one further additional illumination function.

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

Applicant: RealD Inc.

Inventor： ROBINSON, Michael, G. ,  WOODGATE, Graham, John ,  HARROLD, Jonathan

IPC: G02B27/22 ,  G02B26/00 ,  G02F1/01

CPC classification number: G02B27/225 ,  G02B6/001 ,  G02B6/0033 ,  G02B6/0038 ,  G02B6/004 ,  G02B6/0045 ,  G02B6/0046 ,  G02B6/0048 ,  G02B6/005 ,  G02B6/0051 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0073 ,  G02B27/0093 ,  G02B27/2242 ,  H04N13/312 ,  H04N13/368 ,  H04N13/398

Abstract: 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.

Abstract translation: 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。