Head-up visual display system using on-axis optics with image wi

Details Head-up visual display system using on-axis optics with image wi Head-up visual display system using on-axis optics with image wi

1976-11-29

1978-04-04

Henry, Jon W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358250, G02B 2714

Patent

active

040824322

ABSTRACT:
An on-axis, optical head-up display device, for use in fixed installations, vehicles or aircraft, utilizes a single block of transparent acrylic resin with the upper surface curved and coated to form a collimating mirror. The block itself is comprised of two major portions cemented together with a transparent bonding material wherein the resulting interface forms a combining surface. A generated image is transmitted from the focal plane of the collimating mirror upwardly through the combining surface; then it is reflected downwardly by the collimating mirror back to the combining surface which in turn serves to combine the generated image with a background view. The combined image is viewed by an observer through a back window of the block. Optical aberrations are reduced by extending the material of the block to the focal plane of the collimating mirror where an image generator is located.

REFERENCES:
patent: 2981165 (1961-04-01), Estes
Freeman, "Heads-Up Displays, Part 2", Optics Tech., Feb. 1969, pp. 175-178.

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