发明名称 |
DIRECTIONALLY ILLUMINATED WAVEGUIDE ARRANGEMENT |
摘要 |
Disclosed is a light guiding valve apparatus comprising an optical valve, a two dimensional light source array and a focusing optic for providing large area collimated illumination from localized light sources. A stepped waveguide may be a stepped structure, in which the steps may be extraction features optically 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. A two dimensional array of viewing windows may be produced. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays with wide viewing freedom and low cross talk and near-eye displays that are substantially transparent. |
申请公布号 |
WO2013173732(A1) |
申请公布日期 |
2013.11.21 |
申请号 |
WO2013US41619 |
申请日期 |
2013.05.17 |
申请人 |
REALD INC. |
发明人 |
WOODGATE, GRAHAM, J.;ROBINSON, MICHAEL, G.;HARROLD, JONATHAN;SCHUCK, MILLER, H. |
分类号 |
G02B6/10;G02B27/22 |
主分类号 |
G02B6/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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