Computer graphics processing and selective visual display system – Image superposition by optical means – Operator body-mounted heads-up display
Patent
1996-04-22
1997-03-18
Tung, Kee M.
Computer graphics processing and selective visual display system
Image superposition by optical means
Operator body-mounted heads-up display
340980, 359630, G09G 300
Patent
active
056127081
ABSTRACT:
A lighter weight helmet mountable display (HMD) that is easily adjustable to accommodate variable inter-pupillary distances includes substantially parallel left and right optical channels, and projects left and right images onto the helmet's visor. Each channel includes light sources that form a complete scan line of the image, and project luminance patterns for successive scan lines through a lens which reduces the light's divergence. A deflector is moved to deflect successive luminance patterns back through the lens so that the lens focuses the patterns onto successive scan lines on a back projection screen. The screen emits luminance patterns in response to the incident luminance patterns for each successive scan line to project the image onto the visor.
REFERENCES:
patent: 4449787 (1984-05-01), Burbo et al.
patent: 4897715 (1990-01-01), Beamon
patent: 5040058 (1991-08-01), Beamon
patent: 5091719 (1992-02-01), Beamon
patent: 5166778 (1992-11-01), Beamon
Ansley David A.
Beamon, III William S.
Chow Doon
Denson-Low Wanda K.
Hughes Electronics
Sales Michael W.
Tung Kee M.
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