Wide FOV simulator heads-up display with selective holographic r

Details Wide FOV simulator heads-up display with selective holographic r Wide FOV simulator heads-up display with selective holographic r

1997-01-27

1999-05-25

Henry, Jon

Optical: systems and elements

Holographic system or element

Head up display

359631, G02B 532, G02B 2710

Patent

active

059074167

ABSTRACT:
A wide field-of-view simulator heads-up display provides images to a user along an optical axis. A HUD CRT provides images of a predetermined design wavelength, while rear projection screen CRTs provide out-of-window scenery that does not contain the predetermined design wavelength. A curved holographic combiner is mounted on the optical axis with a reflective hologram on a concave surface covered with a urethane overcoat. The convex surface has an antireflective coating. A tilted beamsplitter cooperates with a folding mirror in a relay optical system for providing a virtual image of the HUD CRT for reflection from the holographic combiner.

REFERENCES:
patent: Re27356 (1972-05-01), La Russa
patent: 3549803 (1970-12-01), Becht et al.
patent: 3589796 (1971-06-01), Schaefer
patent: 3940203 (1976-02-01), La Russa
patent: 4457579 (1984-07-01), Thylen
patent: 4669810 (1987-06-01), Wood
patent: 4832247 (1989-05-01), Nanba et al.
patent: 5050962 (1991-09-01), Monnier et al.
patent: 5408346 (1995-04-01), Trissel et al.
patent: 5537253 (1996-07-01), Cox et al.

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