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Firefighter training simulator

  • US 5,660,549 A
  • Filed: 01/23/1995
  • Issued: 08/26/1997
  • Est. Priority Date: 01/23/1995
  • Status: Expired due to Fees
First Claim
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1. A firefighter training device for occluding a trainee'"'"'s vision and simulating field conditions across the trainee'"'"'s field of view, said device comprising:

  • a mask adapted to be worn by the trainee, said mask having a housing;

    multi-layered, voltage controlled liquid crystal (LC) lens mounted in said mask, said lens having a plurality of stacked LC layers which combine to define a working area viewed by the trainee, each LC layer including a colored, host-dyed LC material and associated conductive layers on each side of said LC material, said LC material and conductive layers being located between layers of substrate, at least one conductive layer being divided into a grid of independently controllable segments, wherein said segments substantially overlap each other; and

    a controller for individually and collectively controlling said segments to provide view-limiting simulation of field conditions.

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