04669810 is referenced by 113 patents and cites 13 patents.

A head up display includes a simplified holographic combiner which has a low surface spatial frequency for avoiding flare. Symbology generated by a cathode-ray-tube is focused by relay optics and then reflected by a holographic optical element toward the holographic combiner. The last mentioned holographic optical element is provided with optical power in part compensating for distortions attributable to the large off-axis angle at which the holographic combiner is operated.

Title
Head up display system
Application Number
6/576724
Publication Number
4669810
Application Date
February 3, 1984
Publication Date
June 2, 1987
Inventor
Robert B Wood
Hillsboro
OR, US
Agent
Stoel Rives Boley Fraser & Wyse
Assignee
Flight Dynamics
OR, US
IPC
G02B 27/14
G02B 5/32
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