Abstract
Fabrication of a wide field of view head-up display (HUD) has required a trade-off between performance and ease of manufacture. First-generation holographic HUDs employed two distinct approaches: single-element powered holographic combiner with a complex relay lens system, and multiple-element unpowered holographic combiners with a medium complexity relay optic. The manufacturing difficulties of the first approach limit the achievable accuracy whereas the second approach, although easier to make, has obscuration and transmission problems. This paper describes an advanced HUD design using computer-generated holographic construction techniques to fabricate a HUD which meets the extreme performance requirements of the latest aircraft but still remains a reasonable production item.
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