Method and apparatus for combining an induced image with a...

Details Method and apparatus for combining an induced image with a... Method and apparatus for combining an induced image with a...

2006-09-19

2006-09-19

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

C359S634000, C345S007000

Reexamination Certificate

active

07110184

ABSTRACT:
Device for combining a scene image, produced by an imaging system, with an induced image, the imaging system including an eyepiece optics and at least a display screen producing the scene image, the eyepiece optics being located between the display screen and the eye of the observer, the device including an optical director projecting the induced image toward a diffusive surface, the diffusive surface being located between the display screen and the eyepiece optics, wherein the diffusive surface reflects the induced image back, toward the observer, through the eyepiece optics, and wherein the diffusive surface transmits the scene image from the display screen toward the observer, through the eyepiece optics.

REFERENCES:
patent: 4249797 (1981-02-01), Sendecki
patent: 4629295 (1986-12-01), Vogl
patent: 4818065 (1989-04-01), Ziph et al.
patent: 5113177 (1992-05-01), Cohen
patent: 6629295 (2000-05-01), Carmeli et al.
patent: 6937221 (2005-08-01), Lippert et al.
E.F. Genaw and E. K. Nelson of Tracor Aerospace Dayton, OH and K.F. Walsh of Rochester Photonics Corporation, Rochester, NY, “Tracor Flat Panel ANVIS E-HUD” Part of the SPIE Conference on Helmet and Head-Mounted Displays III, Orlando, Florida, Apr. 1988, SPIE vol. 3362, pp. 340-346.

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