×

Reflective optical system, tracking system and holographic projection system and method

  • US 8,120,828 B2
  • Filed: 02/06/2007
  • Issued: 02/21/2012
  • Est. Priority Date: 05/12/2006
  • Status: Active Grant
First Claim
Patent Images

1. Holographic projection system for projecting a holographically reconstructed scene, comprisingReconstruction light source means for generating reconstruction light waves,At least one holographic reconstruction means in the form of a spatial light modulator for modulating the reconstruction light waves and for emitting modulated reconstruction light waves towards a pupil, which is disposed in a Fourier plane of the spatial light modulator for filtering the modulated reconstruction light waves, and further comprisingAn optical reflection system withA reflection element for reflecting the modulated reconstruction light waves which are filtered by the pupil, said reflection element having an elliptically curved reflecting surface with an entry-side focal point disposed in the pupil, from which the reconstruction light waves come when they hit the reflection element, and an exit-side focal point, to which the reconstruction light waves propagate after being reflected from the reflection element, and in front of which the scene is holographically reconstructed,A deflection element with optically controllable deflection properties, andA deflection control means for optically controlling the deflection properties of the deflection element for controlling the position of the exit-side focal point to a position of observer eyes as detected by an eye position detection means.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×