5 May 1986 A Variable Focus, Single Lens, 3 CRT Dichroic Color Graphics Projector
Author Affiliations +
Proceedings Volume 0624, Advances in Display Technology VI; (1986) https://doi.org/10.1117/12.961232
Event: O-E/LASE'86 Symposium, 1986, Los Angeles, CA, United States
A new lens design, featuring user variable focus adjustment, has been incorporated into a raster scanned 3 CRT graphics and video projector. Since registration is accomplished internally in the crossed dichroic single lens design, good color convergence and focus can be maintained over a large projected image range of 6 to 12 feet diagonal. Field curvature and focus tilt compensation is separately adjustable for optimum focus on curved or flat screens at various projection angles.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Terry C. Schmidt, Terry C. Schmidt, } "A Variable Focus, Single Lens, 3 CRT Dichroic Color Graphics Projector", Proc. SPIE 0624, Advances in Display Technology VI, (5 May 1986); doi: 10.1117/12.961232; https://doi.org/10.1117/12.961232


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