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Proceedings Paper

Dual Mode Calligraphic/Raster Color Cathode Ray Tube (CRT) Projector
Author(s): Richard E. Holmes
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Paper Abstract

Wider and brighter are key words when describing the wants of users of projection television (TV). Higher resolution and truer colors also rank high on the list of desirable features. In aircraft flight simulators, there is the need for static, and sometimes dynamic, raster shaping for off-axis projection on large dome screens. To top off these conflicting requirements is the need for time shared calligraphic (stroke writing or vector refresh) and raster TV operation in some computer image generation systems. This paper describes some of the concepts being investigated for such a cathode ray tube (CRT) projector. Problems associated with optics, color convergence, cooling of the CRT faceplates and deflection are discussed. In addition, the problems associated with the side-by-side merging of multiple projectors for very wide field of view projection (Videorama) are addressed.

Paper Details

Date Published: 16 August 1983
PDF: 5 pages
Proc. SPIE 0386, Advances in Display Technology III, (16 August 1983); doi: 10.1117/12.970242
Show Author Affiliations
Richard E. Holmes, Systems Research Laboratories, Inc. (United States)

Published in SPIE Proceedings Vol. 0386:
Advances in Display Technology III
Elliott Schlam, Editor(s)

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