Head-up display independent test site

Details Head-up display independent test site Head-up display independent test site

1986-01-28

1987-03-03

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358103, 358139, 358250, 340705, 340980, 350172, 350174, H04N 718, G02B 2714, G09G 302

Patent

active

046479678

ABSTRACT:
An independent test sight is described for a pilot's head-up display (HUD). In one embodiment, the independent test site comprises a collimator assembly and an aligned periscope assembly. The collimator assembly comprises a source of light, a reticle, and a lens for projecting the image of the reticle. The periscope assembly comprises a rhomboid prism housed within the chassis of the HUD in such a manner that it can be pivoted from a stowed position to an erect position where it projects a reticle pattern in the field of view of the HUD combiner.

REFERENCES:
patent: 3711826 (1973-01-01), La Russa
patent: 3738733 (1973-06-01), Pettit
patent: 3778548 (1973-12-01), Nistri
patent: 4108025 (1978-08-01), Stine et al.
patent: 4400731 (1983-08-01), Brown

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