Modular helmet-mounted display

Details Modular helmet-mounted display Modular helmet-mounted display

1995-01-10

1997-10-14

Epps, Georgia Y.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359633, G02B 2714

Patent

active

056777957

ABSTRACT:
An aviator's helmet-mounted display includes a visor/combiner module (14) which is configured for use with an essentially standard aviator's flight helmet (12). The helmet-mounted display also includes a conformal image source and relay optics (ISRO) module (30) which is removably attachable to the aviator's helmet. This ISRO module (30) projects an image inwardly from outside the visor/combiner module through a transparent window portion (44) thereof and out and inner surface (48) of an angulated transparent viewing portion (18,20) of the visor/combiner module (14). The image is focused at infinity and is partially reflected from the inner surface (48) to an eye (50) of the aviator so that the image is superimposed on the aviator's view of an outside scene viewed through the viewing portion (18,20).

REFERENCES:
patent: 4468101 (1984-08-01), Ellis
patent: 4786966 (1988-11-01), Hanson et al.
patent: 5200827 (1993-04-01), Hanson et al.
patent: 5293271 (1994-03-01), Merritt et al.
patent: 5299063 (1994-03-01), Fritz et al.

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