Recent Advances In The Single-Gun Color Television Light-Valve Projector

William E. Good

doi:10.1117/12.954362

1 September 1975 Recent Advances In The Single-Gun Color Television Light-Valve Projector

William E. Good

Proceedings Volume 0059, Simulators and Simulation II: Design, Applications and Techniques; (1975) https://doi.org/10.1117/12.954362
Event: Disneyland, 1975, Anaheim, United States

Abstract

This new color television light-valve projector consists of a deformable fluid control layer and electron gun in a sealed vacuum tube, an external light source and projection lens. It is being used for large screen color television applications such as simulation, entertainment, and control centers. Continued development of this type of light-valve projector has resulted in improvements in resolu-tion, sealed light-valve life, higher TV line standards, and higher brightness. Resolution gains in both color and black and white are due to refined optics and in applying new concepts for the "grating" modulators. The life of the sealed light valve has been extended to over 6500 hours by improvements in the cathode, ion pump and fluid. Operation at the 1029 TV line standards has been achieved for the monochrome light valve and prospects look good for pushing the single gun color projector to the same limit. Recent experiments have shown the feasibility of creating a "wide screen" format for either color or monochrome by the addition of an anamorphic lens and supplying the projector with a "squeezed" format picture signal. Applications of these projectors to simulation and other fields will be discussed.

Citation Download Citation

William E. Good "Recent Advances In The Single-Gun Color Television Light-Valve Projector", Proc. SPIE 0059, Simulators and Simulation II: Design, Applications and Techniques, (1 September 1975); https://doi.org/10.1117/12.954362

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