发明授权
- 专利标题: Method for encoding a hologram in a light modulation device
- 专利标题(中): 光调制装置中的全息图的编码方法
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申请号: US14361739申请日: 2012-11-29
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公开(公告)号: US09581963B2公开(公告)日: 2017-02-28
- 发明人: Norbert Leister
- 申请人: SEEREAL TECHNOLOGIES S.A.
- 申请人地址: LU Munsbach
- 专利权人: SEEREAL TECHNOLOGIES S.A.
- 当前专利权人: SEEREAL TECHNOLOGIES S.A.
- 当前专利权人地址: LU Munsbach
- 代理机构: Saul Ewing LLP
- 优先权: DE102011055944 20111201; DE102011056006 20111202
- 国际申请: PCT/EP2012/074008 WO 20121129
- 国际公布: WO2013/079622 WO 20130606
- 主分类号: G03H1/08
- IPC分类号: G03H1/08 ; G03H1/22 ; G02B27/42
摘要:
A hologram is constructed from individual subholograms assigned to corresponding encoding regions in a light modulation device and respectively assigned to an object point of the object to be reconstructed with the hologram. With a virtual observer window, a defined viewing region is provided through which a reconstructed scene in a reconstruction space is observed by an observer. A complex value of a wavefront for each individual object point is calculated in the virtual observer window. Each individual amplitude of a complex value of a wavefront in the virtual observer window is subsequently multiplied by a correction value with which a correction of the angle selectivity of at least one volume grating arranged downstream in the beam path of the light modulation device is carried out. The corrected complex values determined in this way for all object points are summed and transformed into the hologram plane of the light modulation device.
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