Biocular holographic helmet mounted display

Details Biocular holographic helmet mounted display Biocular holographic helmet mounted display

1990-08-01

1991-07-30

Henry, Jon W.

350 372, 350174, G02B 532, G02B 2710

Patent

active

050354744

ABSTRACT:
A helmet mounted display uses a see-through visor holographic combiner to provide, in the normal field of view of a helicopter pilot, a pair of images derived from an image source such as a miniature cathode ray tube. A source of the video display may be an infrared sensor mounted on an external turret underneath the helicopter. The turret rotates in response to helmet movements so that the pilot is continually provided with a dual image from the CRT display which corresponds with the external scene as visible through the visor.

REFERENCES:
patent: 3059519 (1962-10-01), Stanton
patent: 3807829 (1974-04-01), Close
patent: 3940204 (1976-02-01), Withrington
patent: 4001499 (1977-01-01), Dowell
patent: 4048653 (1977-09-01), Spooner
patent: 4218111 (1980-08-01), Withrington et al.
patent: 4447128 (1984-05-01), Ferrer
patent: 4457579 (1984-07-01), Thylen
Hughes Aircraft Co., "Superimposed Images Enhanced Night Vision", Machine Design, vol. 52, No. 18, Aug. 7, 1980, p. 36.
Published Unexamined Japanese Patent Application No. 54-70850, corresponding to U.S. Application Ser. No. 842,641, filed Oct. 17, 1977, Gaylord E. Moss et al.

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