Heat developing device for locally heat developing a dry photose

Details Heat developing device for locally heat developing a dry photose Heat developing device for locally heat developing a dry photose

1977-10-18

1979-07-10

Albritton, C. L.

Electric heating

Heating devices

Combined with diverse-type art device

219388, 432227, H05B 100

Patent

active

041608968

ABSTRACT:
A heat developing device for locally heat developing a dry photosensitive film composed of a heating unit for locally heating a portion to be heat-developed of the photosensitive film and a cooling unit surrounding the heating unit and placed in contact with the periphery of the portion to be heat-developed of the photosensitive film. The cooling unit functions to prevent the thermal effect applied to the heat-developing portion of the photosensitive film from being transmitted to the remainder of the photosensitive film.

REFERENCES:
patent: 3309881 (1967-03-01), Beerman
patent: 3936854 (1976-02-01), Smith

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