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Multi-layer ferroelectric apparatus

  • US 3,868,172 A
  • Filed: 06/18/1973
  • Issued: 02/25/1975
  • Est. Priority Date: 06/18/1973
  • Status: Expired due to Term
First Claim
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1. Ferroelectric optical apparatus adapted to transmit incident polarized light therethrough in a given direction, said apparatus comprising:

  • a plurality of superimposed ferroelectric layers, each of said ferroelectric layers having first and second planar opposing sides transverse to said direction, at least one conductive member means disposed on each said first and second sides of each said ferroelectric layer, and means coupled to said conductive member means for selectively energizing said ferroelectric layers to provide said apparatus with a selectable and variable spectral bandpass characteristic.

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