×

Active and passive holographic optical based curved surface elements

  • US 6,285,472 B1
  • Filed: 10/29/1999
  • Issued: 09/04/2001
  • Est. Priority Date: 01/16/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. An orb having at least a portion thereof covered with a holographic optical element (HOE) diffraction grating which was constructed so that is it essentially distortion free when applied on said curved surface, whereby such diffraction grating diffracts light to emit color to the observer.

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