发明公开
EP2229603A1 EXIT PUPIL EXPANDERS WITH SPHERICAL AND ASPHERIC SUBSTRATES 有权
退出与球形和非球面基材的瞳孔扩张器

  • 专利标题: EXIT PUPIL EXPANDERS WITH SPHERICAL AND ASPHERIC SUBSTRATES
  • 专利标题(中): 退出与球形和非球面基材的瞳孔扩张器
  • 申请号: EP07849027.3
    申请日: 2007-12-17
  • 公开(公告)号: EP2229603A1
    公开(公告)日: 2010-09-22
  • 发明人: SAARIKKO, PasiLEVOLA, Tapani
  • 申请人: Nokia Corporation
  • 申请人地址: Keilalahdentie 4 02150 Espoo FI
  • 专利权人: Nokia Corporation
  • 当前专利权人: Nokia Corporation
  • 当前专利权人地址: Keilalahdentie 4 02150 Espoo FI
  • 代理机构: Higgin, Paul
  • 国际公布: WO2009077803 20090625
  • 主分类号: G02B27/01
  • IPC分类号: G02B27/01
EXIT PUPIL EXPANDERS WITH SPHERICAL AND ASPHERIC SUBSTRATES
摘要:
The specification and drawings present a new apparatus and method for using exit pupil expanders (EPE) with spherical or aspheric non-flat substrates and a plurality of diffractive elements for expanding the exit pupil of a display for viewing in order to reduce image spreading. This can also enable improved image resolution and utilization of shorter focus distances.
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