Magnetically actuated deflectable membrane page composer for hol

Details Magnetically actuated deflectable membrane page composer for hol Magnetically actuated deflectable membrane page composer for hol

1974-09-20

1976-06-08

Stern, Ronald J.

Communications: electrical

Land vehicle alarms or indicators

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

340324R, 350161, G03H 130, G02F 119

Patent

active

039618374

ABSTRACT:
The device comprises a flexible magnetic sheet reflective on one side, at least one magnetic circuit associated with at least one zone of the sheet for deforming the sheet by a modification of the magnetic flux in the magnetic circuit. Exciting means controlled by electrical data vary the magnetic flux so as to modify the reflecting conditions in said zone as a function of the electrical data.
A unit for recording holographical optical memories is disclosed which employs this device.

REFERENCES:
patent: 1525550 (1925-02-01), Jenkins
patent: 3267455 (1966-08-01), McGuire et al.
patent: 3746785 (1973-07-01), Goodrich
patent: 3798620 (1974-03-01), Cosentino
patent: 3812490 (1974-05-01), Goodrich

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