1
David George Anthony Demaine, John David Archer, Richard Lawrence Fisher: Aircraft parking guidance indicator. The Rank Organisation, Brisebois & Kruger, March 29, 1977: US04015235 (11 worldwide citation)

An optical system for guiding the pilot of a ground-maneuvering aircraft towards a parking bay has, an illuminated target positioned behind a fixed stop aperture along a line of sight of the pilot which is inclined to the direction of approach of the aircraft to the bay. As the aircraft advances dif ...


2
David George Anthony Demaine, David Gordon Norrie: Face plate graticule. The Rank Organisation, Brisebois & Kruger, November 29, 1977: US04060307 (5 worldwide citation)

In an optical display system, information recorded on a face plate or like optical element is injected into a main optical path by means of a standby sight device comprising a lens unit and a flexible fibre optic bundle having a numerical aperture sufficiently large to cover the maximum acceptance a ...