HEAD-UP DISPLAYS
Assignee
ELLIOTT BROTHERS (LONDON) LIMITED, A BRITISH COMPANY
Filed
Jan 21, 1981
Granted
Oct 4, 1983
Location
SUSSEX GB
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.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Aug 25, 1982
Rescinded
Mar 31, 1983
Duration
7 months
Inventor
- 1STAFFORD M. ELLIS
Record Details
- Patent number
- US 4407564
- Application
- 06237401
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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