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Display system employing acoustro-optic tunable filter

  • US 5,410,371 A
  • Filed: 06/07/1993
  • Issued: 04/25/1995
  • Est. Priority Date: 06/07/1993
  • Status: Expired due to Fees
First Claim
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1. A display system apparatus for generating a visual display from an electrical driver signal comprising:

  • a signal source providing a frequency multiplexed tricolor electrical driver signal comprising a sum of three separate video signals modulated on three respective radio frequency carrier signals;

    a light source providing a linearly polarized, pulsed input light beam including red, green, and blue wavelengths;

    an acousto-optic tunable filter arranged to receive and be driven by said frequency multiplexed tricolor driver signal;

    a scanning mirror positioned to receive said light beam and scan it across said acousto-optic tunable filter; and

    wherein said filter produces an output beam in response to said driver signal and said light beam, and further including a beam splitter means for receiving said output beam, for separating it into an undiffracted zero order beam and a first order component, and for selecting the undiffracted zero order beam as the display to be viewed.

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