Optical data processing device

Details Optical data processing device Optical data processing device

1991-05-31

1993-12-07

Oberley, Alvin E.

Computer graphics processing and selective visual display system

Single display system having stacked superimposed display...

359 72, 364822, 345 92, 345207, G09G 336, G02F 113, G06G 900

Patent

active

052686795

ABSTRACT:
An optical data processing device has successive light intensity modulating levels, each level including a matrix of cells (35), each cell having therein an element (31) of electrically controllable light transmissivity and a control device (32) which is responsive to signals supplied thereto to control the transmissivity of the element (31) in accordance with such signals. The matrix cells in at least one level also each include a light responsive element (34), such as a photodiode, for controlling the pattern of transmissivities at that level in accordance with the light received from the preceding level, thereby permitting optical as well as electrical modulation of the input image, formed at the first level. The final level (n) includes a display screen which, when an input light beam is incident on the first level, produces an output image corresponding to the input image as modified by the sequence of levels in accordance with the supplied data signals. Since there may typically be 350,000 matrix cells in each level, very high parallel data processing capability is achieved.

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