Helmet mounted display systems

Details Helmet mounted display systems Helmet mounted display systems

1995-03-24

1996-08-06

Epps, Georgia Y.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359630, 359632, G02B 2714

Patent

active

055439683

ABSTRACT:
A helmet mounted display system comprising: a transparent visor; and an optical system which directs rays of light from a display produced by a display source onto a spherical region of the visor to provide by reflection at the visor, at a helmet wearer's eye position, a collimated virtual image of the display on a line of sight of a wearer of the helmet through the visor; the region of the visor being of a shape which is rotationally symmetric about a first axis and the optical system being mounted for rotation about the first axis, thereby to allow rotation of the eye position about the axis.

REFERENCES:
patent: 3923370 (1975-12-01), Mostrom
patent: 4761056 (1988-08-01), Evans
patent: 4818858 (1989-04-01), Sorimachi et al.
patent: 4854688 (1989-08-01), Hayford et al.
patent: 4874214 (1989-10-01), Cheysson et al.
patent: 5000544 (1991-03-01), Staveley
patent: 5266930 (1993-11-01), Ichikawa et al.

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