High definition color display device

Details High definition color display device High definition color display device

G - Physics

02

F

375/39, 345/8

G02F 1/1335 (2006.01) H04N 9/31 (2006.01)

Patent

CA 2009391

The device finds application, particularly, in the instrument panels of aircraft, where it comprises: three liquid crystal optical valves, controlled respectively by three electrical signals respectively representing a red image, a green image and a blue image; two holographic mirrors, a standard mirror and two dichroic strips to illuminate the three valves respectively by three beams, colored red, green and blue, from a single source of white light, while at the same time reducing the space occupied by the optical elements needed to guide the three beams to the minimum; a dichroic cube to superimpose the three beams coming respectively from the three valves; optical means to form a trichromatic image on a diffusing screen; optical means to collimate the rays coming from the image formed on the diffusing screen to enable an observer to see an image collimated at long distance, with a wide field.

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