Light beam controller

Details Light beam controller Light beam controller

1976-03-29

1977-08-09

Sikes, William L.

G02F 132

Patent

active

040407225

ABSTRACT:
An acousto optical diffraction cell, capable of passing polychromatic radiation and useful in a high speed, high intensity character generator. A monoclinic prism behaves like a parallel plate of glass when deenergized, and diffracts light under Bragg angle conditions over a useful spectral range when energized, thus ensuring a high I1/I0 ratio. The cell can be used as a very fast linear scan device, or it can be used as a multiple light beam modulator.

REFERENCES:
patent: 3462212 (1969-08-01), Denton
patent: 3931595 (1976-01-01), Isaacs et al.

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