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Proceedings Paper

Optical design of dual-combiner head-up displays
Author(s): Anthony J. Kirkham
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Paper Abstract

Optics for head-up displays (HUDs) with two combiners are reviewed with respect to aberration correction and the optimization of the azimuth field. The impetus for utilizing two combiners is discussed by comparison with conventional HUD designs, and the requirements for aberration correction are listed. The use of a CRT that incorporates the P-53 phosphor is shown to increase the azimuth instantaneous FOV (IFOV), and HUDs with dual combiners enhance the elevation IFOV. A dual-combiner HUD is shown to require a P-1 phosphor CRT, improved color correction, a reduced Petzval sum, and aberration control that is extended over more of the pupil as compared to single-combiner HUDs. The P-53 phosphor can be used to filter spectral sidebands and thereby permit the use of a lens that is not capable of good chromatic correction as well as enhance the azimuth IFOV without changing the module depth.

Paper Details

Date Published: 1 January 1991
PDF: 6 pages
Proc. SPIE 1354, 1990 Intl Lens Design Conf, (1 January 1991); doi: 10.1117/12.47945
Show Author Affiliations
Anthony J. Kirkham, Pilkington Optronics (United Kingdom)

Published in SPIE Proceedings Vol. 1354:
1990 Intl Lens Design Conf
George N. Lawrence, Editor(s)

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