Head-up displays

Details Head-up displays Head-up displays

1981-01-21

1983-10-04

Buczinski, S. C.

350 37, 350 377, G02B 2714, G02B 532, G03H 130

Patent

active

044075642

ABSTRACT:
A display unit for a head up display wherein the combiner (9), which serves to reflect light from a display surface (3) towards an observer to provide the observer with an image of the display superimposed on his view through the combiner, comprises first, second and third tuned reflective optical films (13c, 15c, 17c) disposed in such angular relationship with one another and the display surface that narrow waveband light from the display surface reaches the observer after being, successively, reflected at the first film, transmitted through the second film, reflected at the third film, reflected at the second film and transmitted through the third film.

REFERENCES:
patent: 3892474 (1975-07-01), Nilsson
patent: 3940204 (1976-02-01), Withrington
patent: 4261647 (1981-04-01), Ellis

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