The invention provides an artificial horizon device having a light source of limited power which can be positioned remotely from the aircraft cockpit. A scanning mechanism is mounted in the cockpit to receive light from the light source and to project a light bar representing the true horizon by scanning a projected light beam along the perceived bar at a frequency sufficiently high that the bar is perceived as a continuous projection.
申请公布号
US4397555(A)
申请公布日期
1983.08.09
申请号
US19800211954
申请日期
1980.12.01
申请人
HER MAJESTY THE QUEEN IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF NATIONAL DEFENCE
发明人
MALCOLM, RICHARD E.;ASSENHEIM, HARRY M.;EMMETT, PAUL L.;CHAN, RICHARD