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1. 发明申请

WO2016207724A1 STEREOSCOPIC 3D PROJECTION SYSTEM WITH IMPROVED LEVEL OF OPTICAL LIGHT EFFICIENCY 审中-公开
标题翻译：具有提高光学效率水平的立体三维投影系统
公开(公告)号：WO2016207724A1
公开(公告)日：2016-12-29
申请号：PCT/IB2016/001004
申请日：2016-06-24
申请人： VOLFONI R&D EURL
发明人： PALMER, Stephen
IPC分类号： G02B27/22 , G02B27/26 , H04N13/04 , G02B5/30
CPC分类号： G02B27/26 , G02B5/3041 , G02B5/3083 , G02B27/2264 , G02B27/283 , G02F1/13363 , G03B21/56 , H04N13/337 , H04N13/341 , H04N13/363
摘要： A time-multiplexed stereoscopic 3d projection system including a beam-splitting element to split the randomly polarized image-beam generated by a single-lens projector into one primary image-beam, possessing a first state of linear polarization, and two secondary image-beams, both possessing a second state of linear polarization. The polarization states are mutually orthogonal. The primary and secondary image-beams recombine to form a complete image on the surface of a polarization-preserving projection-screen. There are polarization modulators that modulate the first and second states of linear polarization between a left and right circular polarization state. There is a contrast enhancement film in the optical -path of the primary or secondary image-beams located between the polarization modulator and the projection-screen. The contrast enhancement film comprises a stack of at least three uniaxially stretched retardation-films which perturb the circular polarization state of said image-beams and which possess an in-plane retardation value substantially equal to 140nm, 270nm, or 540nm.
摘要翻译：一种时分复用立体3D投影系统，包括分束元件，将由单透镜投影仪产生的随机偏振图像光束分解为具有第一状态的线性偏振的一个主图像束，以及两个次级图像束都具有第二种线性极化状态。极化状态是相互正交的。初级和次级图像光束重新组合以在偏振保留投影屏幕的表面上形成完整的图像。存在调制左和右圆极化状态之间的线性极化的第一和第二状态的偏振调制器。位于偏振调制器和投影屏之间的主要或次要图像光束的光学路径中存在对比度增强膜。对比度增强膜包括至少三个单轴拉伸延迟膜的堆叠，其扰乱所述图像束的圆偏振状态并且具有基本上等于140nm，270nm或540nm的面内延迟值。

2. 发明申请

WO2016097858A1 STEREOSCOPIC THREE DIMENSIONAL IMAGING SYSTEM 审中-公开
标题翻译：立体三维成像系统
公开(公告)号：WO2016097858A1
公开(公告)日：2016-06-23
申请号：PCT/IB2015/002478
申请日：2015-12-16
申请人： VOLFONI R&D EURL
发明人： PALMER, Stephen
IPC分类号： H04N13/04
CPC分类号： G02B27/26 , H04N13/337 , H04N13/363
摘要： A 3-d projection system including first and second projectors generates left and right eye image beams. There is a first beam-splitting element to split the left-eye image beam into a primary left-eye image beam and two secondary left-eye image-beams and a second beam-splitting element to split the right-eye image beam into a primary right-eye image beam and two secondary right-eye image beams. The primary and secondary image beams have first and second linear polarization states, respectively. There is a first optical quarter waveplate device configured to receive the primary left-eye image beam and two secondary left-eye image beams and to convert their linear polarization states to a first circular polarization orientation. There is a second optical quarter waveplate device configured to convert the primary right-eye image beam and two secondary right-eye image beams to a second circular polarization orientation. The first and second circular polarization orientations are mutually orthogonal.
摘要翻译：包括第一和第二投影仪的3-d投影系统产生左眼和右眼图像束。存在第一分束元件，用于将左眼图像束分割为主左眼图像束和两个次左眼图像束和第二分束元件，以将右眼图像束分割为主右眼图像束和二次右眼图像束。初级和次级图像光束分别具有第一和第二线性极化状态。存在配置成接收初级左眼图像束和两个次级左眼图像束并将其线性偏振状态转换为第一圆偏振方向的第一光学四分之一波片装置。存在第二光学四分之一波片装置，其被配置为将主要右眼图像束和两个次级右眼图像束转换为第二圆偏振方向。第一和第二圆偏振取向是相互正交的。

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