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Wide angle infinity display system

  • US 4,348,185 A
  • Filed: 02/14/1980
  • Issued: 09/07/1982
  • Est. Priority Date: 02/14/1980
  • Status: Expired due to Term
First Claim
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1. A wide angle infinity display system comprising in combination:

  • a helmet adapted to be worn upon the head of a trainee pilot;

    position monitoring means, having first, second, and third outputs, for sensing the angular movement of the head of said trainee pilot, and for producing pitch, roll, and yaw control signals indicative of such angular movement, said position monitoring means comprising;

    first, second, and third potentiometers, each of which has a fixed resistance and a movable arm in slidable contact with said fixed resistance,a first cable having one end thereof in rotatable engagement with one side of said helmet, and the opposite end thereof connected to the movable arm of said first potentiometer, a second cable having one end thereof in rotatable engagement with the rear of said helmet and the opposite end thereof connected to the movable arm of said second potentiometer, a third cable having one end thereof in rotatable engagement with the top of said helmet and the opposite end thereof connected to the movable arm of said third potentiometer, and a direct current voltage source having an output connected to the fixed resistance of said first, second, and third potentiometers;

    computing means having first, second, and third inputs respectively connected to the first, second, and third outputs of said position monitoring means, and an output adapted for processing the pitch, roll, and yaw control signals produced by said position monitoring means in accordance with a flight simulation program, and for providing at the output thereof a position control signal in response to the processing of said pitch, roll, and yaw control signals by the flight simulation program of said computing means;

    image producing means having an input connected to the output of said computing means for generating visual information, the visual information generated by said image producing means to be oriented in accordance with the angular movement of the head of said trainee pilot in response to the position control signal provided by said computing means;

    image forming means mounted upon said helmet and secured thereto adapted for projecting upon a retroreflective screen the visual information provided by said image producing means so as to form upon said screen a visual scene to be observed by said trainee pilot; and

    multiple path communicating means positioned between said image producing means and said image forming means for transmitting therebetween the visual information by said image producing means.

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