Helmet display

Details Helmet display Helmet display

1989-12-26

1992-02-25

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

358 93, 358104, G09G 302

Patent

active

050917196

ABSTRACT:
A helmet mountable display system may display a raster scanned image to each eye of a wearer of the helmet for presenting a stereoscopic image. The system includes a first and second lens having a respective optical axis and first and second oscillatable deflecting surfaces for generating the raster. The lenses may be arranged so that the optical axes from a V with the first and second deflecting surfaces disposed substantially at the apex of the V. This arrangement may be bilaterally symmetrical such that a plurality of light rays for forming a first image passes through the first lens along one optical path, strikes the first deflecting surface, is directed onto the second deflecting surface, and is directed through the second lens toward a focal plane where a real image is available to be supplied to one eye. Another plurality of light rays for forming a second image passes through the second lens along another optical path generally opposite to the one optical path, strikes the first deflecting surface, is directed onto the second deflecting surface and is directed through the first lens toward a focal plane where another real image is available to be supplied to the other eye. The real images are raster scanned when the first and second surfaces are oscillating in a predetermined pattern. Each light ray supplies information to a corresponding zone of the image.

REFERENCES:
patent: 4897715 (1990-01-01), Beamon, III
Jenkins et al., "Fundamentals of Optics", 1957, p. 6.

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