Large-screen visualization device

Details Large-screen visualization device Large-screen visualization device

1980-02-11

1982-12-28

Evans, F. L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340784, G02F 113

Patent

active

043658695

ABSTRACT:
A device for visualizing an image on a large screen with a small projection distance, in which the image is formed by pieces on an assembly of liquid crystal cells for then projecting it onto a visualization screen by means of an assembly of lenses associated with the liquid crystal cells; to illuminate the cells a transparent plate is used forming a light-guide and which comprises an assembly of networks associated with the cells to extract the light from the plate and project it onto the cells.

REFERENCES:
patent: 3704068 (1972-11-01), Waly
patent: 4068121 (1978-01-01), Bringhurst
patent: 4257041 (1981-03-01), Masucci
patent: 4263594 (1981-04-01), Masucci

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