Abstract
Fabrication of a wide field of view Head Up Display has required a trade off between performance and ease of manufacture. First generation holographic HUDs employed two distinct approaches: (1) Single element powered holographic combiner with a complex relay lens system. (2) Multiple element unpowered holographic combiners with a medium complexity combiner. 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 which remains a reasonable production item.
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