Retractable holographic combiner

Details Retractable holographic combiner Retractable holographic combiner

1993-08-17

1996-05-14

Dzierzynski, Paul M.

Optical: systems and elements

Holographic system or element

Head up display

359630, 359632, 359872, 359841, G03H 100, G02B 2710, G02B 508, G02B 7182

Patent

active

055173373

ABSTRACT:
A retractable holographic combiner, of the type comprising a movable holographic mirror placed before the pilot's eyes and designed for the presenting of light images collimated at infinity, superimposed on the external scene, and coming from a projector positioned upline with respect to the combiner, the holographic mirror being connected to a fixed part of the aircraft by a hinged support that provides for holding it and positioning it, wherein the support of the holographic mirror is constituted by a single lateral connecting arm comprising a first upper hinge connecting said arm by one of its ends to the fixed part of the aircraft and a second lower hinge connecting said arm by its other end to a side of the holographic mirror so as to obtain a complete retraction of the assembly.

REFERENCES:
patent: 2852979 (1958-09-01), Hund
patent: 3945716 (1976-03-01), Kinder
patent: 4188090 (1980-02-01), Ellis
patent: 4775218 (1988-10-01), Wood et al.
patent: 4951912 (1990-08-01), Manzoni
patent: 5109301 (1992-04-01), Yang

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