专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3235246A1 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：EP3235246A1
公开(公告)日：2017-10-25
申请号：EP15834759.1
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投影系统生成左眼和右眼图像束。存在将左眼图像光束分成主要左眼图像光束和两个次要左眼图像光束的第一分束元件以及将右眼图像光束分成第一分束元件的第二分束元件主右眼图像光束和两个次级右眼图像光束。主和次像光束分别具有第一和第二线性偏振态。存在第一光学四分之一波片装置，该第一光学四分之一波片装置被配置为接收主要左眼图像光束和两个次要左眼图像光束并将其线性偏振状态转换为第一圆偏振取向。存在第二光学四分之一波片装置，其被配置为将主右眼图像光束和两个次级右眼图像光束转换为第二圆形偏振取向。第一和第二圆偏振取向是相互正交的。

2. 发明公开

EP3314325A1 STEREOSCOPIC 3D PROJECTION SYSTEM WITH IMPROVED LEVEL OF OPTICAL LIGHT EFFICIENCY 有权
标题翻译：具有改善的光效率水平的立体3D投影系统
公开(公告)号：EP3314325A1
公开(公告)日：2018-05-02
申请号：EP16753459.3
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
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 140 nm, 270 nm, or 540 nm.

3. 发明授权

EP3314325B1 STEREOSCOPIC 3D PROJECTION SYSTEM WITH IMPROVED LEVEL OF OPTICAL LIGHT EFFICIENCY 有权
公开(公告)号：EP3314325B1
公开(公告)日：2020-08-19
申请号：EP16753459.3
申请日：2016-06-24
申请人： Volfoni R&D Eurl
发明人： PALMER, Stephen
IPC分类号： G02B30/25 , G02B5/30 , H04N13/337 , H04N13/341 , H04N13/363 , G02B30/24

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式