360 degree viewing system having a liquid crystal display screen

Details 360 degree viewing system having a liquid crystal display screen 360 degree viewing system having a liquid crystal display screen

1989-03-07

1990-07-24

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 64, 350331R, H04N 916

Patent

active

049438514

ABSTRACT:
A viewing system is provided for presenting a projected image upon a rear projection screen that is rotated extremely rapidly about a vertical axis which exactly bisects the picture in the vertical plane. The rotational rate is such that an entire audience, regardless of their position about the viewing system, can view the projected image simultaneously. The 360.degree. viewing system features an optical system which rotates with respect to a cathode ray tube about the vertical axis in synchronization with the rotation of the projection screen. A liquid crystal display (LCD) screen is utilized to define a viewing window which is continuously redefined at sequential intervals to remain continually aligned with the projection screen.

REFERENCES:
patent: 3335217 (1967-08-01), Bassett
patent: 3542948 (1970-11-01), Wolff
patent: 3647284 (1972-03-01), Elings et al.
patent: 3872238 (1975-03-01), Herndon
patent: 3976837 (1976-08-01), Lang
patent: 3992718 (1976-11-01), Driskell

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