Hologram memory apparatus

Details Hologram memory apparatus Hologram memory apparatus

1975-01-15

1977-03-15

Stern, Ronald J.

Communications: electrical

Land vehicle alarms or indicators

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

340173LM, G03H 130, G03H 116

Patent

active

040121089

ABSTRACT:
A hologram memory apparatus in which the information is displayed as one-dimensional spatial pattern and recorded in a form of strip-shaped one-dimensional hologram having sharpness in counter proportion to the width of the light flux and the information is read by a one-dimensional photo detector array. The apparatus comprises an optical system for writing in the information having a common optical axis for the input information signal light and for the reference light. The apparatus can record either analog information or digital information by a single apparatus.

REFERENCES:
patent: 3657473 (1972-04-01), Corcoran
patent: 3698794 (1972-10-01), Alphonse
patent: 3779625 (1973-12-01), Lang
patent: 3812496 (1974-05-01), Brooks

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