×

Modulation optical system including a compensator conditioning oblique and skew rays

  • US 6,897,926 B2
  • Filed: 05/27/2004
  • Issued: 05/24/2005
  • Est. Priority Date: 01/07/2002
  • Status: Expired due to Term
First Claim
Patent Images

1. A modulation optical system for providing high contrast modulation of an incident light beam, comprising:

  • (a) a wire grid pre-polarizer for pre-polarizing said beam of light;

    (b) a transmissive liquid crystal device for selectively modulating said polarized beam of light having to encode image data thereon in order to form a modulated beam;

    (c) a wire grid polarization analyzer which transmits said modulated beam and blocks light of the opposite polarization; and

    (d) a compensator located between said wire grid pre-polarizer and said wire grid polarization analyzer which conditions oblique and skew rays.

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