Invention Grant
US08355190B2 Method and device for reducing speckle 有权
减少斑点的方法和装置

  • Patent Title: Method and device for reducing speckle
  • Patent Title (中): 减少斑点的方法和装置
  • Application No.: US12520156
    Application Date: 2007-12-04
  • Publication No.: US08355190B2
    Publication Date: 2013-01-15
  • Inventor: Norbert Leister
  • Applicant: Norbert Leister
  • Applicant Address: LU Munsbach
  • Assignee: Seereal Technologies S.A.
  • Current Assignee: Seereal Technologies S.A.
  • Current Assignee Address: LU Munsbach
  • Agency: Saul Ewing LLP
  • Priority: DE102006062376 20061219
  • International Application: PCT/EP2007/063246 WO 20071204
  • International Announcement: WO2008/074628 WO 20080626
  • Main IPC: G03H1/00
  • IPC: G03H1/00
Method and device for reducing speckle
Abstract:
A method for reducing speckle patterns of a three-dimensional holographic reconstruction is disclosed. A controllable light modulator into which a hologram of a three-dimensional scene is coded is illuminated by coherent light, a reconstruction lens transforms the modulated light into an eye position and reconstructs the three-dimensional scene in a reconstruction space and a control means controls the illumination. This provides a holographic reproduction device in which the speckle patterns occurring during reconstruction of a three-dimensional scene are reduced. According to one embodiment, a next-to-real time method is presented using a carrier medium of conventional image refresh rate.
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