Radiation imagery chemistry: process – composition – or product th – Use of sound or nondigital compressive force
Patent
1979-04-18
1980-09-16
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Use of sound or nondigital compressive force
430397, 430406, 430570, 430606, 430541, 430353, G03C 504, G03C 524, G03C 526
Patent
active
042230829
ABSTRACT:
A process is disclosed of forming a visible ultrasonographic image in a silver halide photographic element. This is achieved by imagewise exposing the layer to ultrasonic radiation at an intensity and for a duration sufficient to alter the exposure response of the element to electromagnetic radiation, but below that which will produce a latent image in the absence of externally applied electromagnetic radiation. The element is concurrently or subsequently exposed to electromagnetic radiation to produce a latent image therein defined by the imagewise ultrasonic radiation exposure. The element is then photographically processed to produce a visible image corresponding to the latent image.
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Downey Mary F.
Eastman Kodak Company
Thomas Carl O.
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