Thermomagnetic imaging apparatus

Details Thermomagnetic imaging apparatus Thermomagnetic imaging apparatus

1975-11-12

1977-06-28

Lucas, Jay P.

Recorders

Magnetographic

360 59, G11B 502, G03G 1900

Patent

active

040329232

ABSTRACT:
A thermoremanent magnetographic imaging apparatus is disclosed. The apparatus includes an imaging transfer station which thermoremanently copies a graphic representation from a slave web onto the magnetizable surface of a master web. The thermomagnetic transfer is produced by exposing the slave and master webs while in intimate contact to a single intense burst of radiation from a flash lamp. The flash lamp is coaxially located within a transparent cylindrical carriage means which peripherally supports the slave and master webs during a full frame transfer process. Dual locking assemblies firmly hold the slave web and master web motionless during the thermomagnetic process to aid in the prevention of registration problems.

REFERENCES:
patent: 3611415 (1971-10-01), Nelson
patent: 3613102 (1971-10-01), Daly
patent: 3827077 (1974-07-01), Kobilka
patent: 3845306 (1974-10-01), Kohlmannsperger
patent: 3936672 (1976-02-01), Tanaka
Journal of Applied Physics, vol. 42, No. 4, Mar. 15, 1971, pp. 1763-1768, "CrO.sub.2 Based Thermomagnetic Info. Storage & Retreival," R. K. Waring, Jr.

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