Device for reducing the granulation in the transmission of optic

Details Device for reducing the granulation in the transmission of optic Device for reducing the granulation in the transmission of optic

1974-03-25

1976-03-02

McGraw, Vincent P.

Optics: image projectors

Plural projection paths with single light source

350188, 353 38, 353 69, 353122, G02F 132, G02B 2114

Patent

active

039414566

ABSTRACT:
A device is described for reducing the granulation during the transmission of optical information with a highly coherent radiation beam. The device includes a first objective system, a radiation-diffusing element disposed in the image plane thereof, a second objective system and a radiation refracting element of a medium whose refractive property is variable under the influence of an ultrasonic wave.

REFERENCES:
patent: 3650608 (1972-03-01), Baker
patent: 3851961 (1974-12-01), Winzer

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