Reflex copying method

Claim 1

A METHOD OF COPYING A DOCUMENT HAVING AREAS OF DIFFERING LIGHT ABSORPTION QUALITIES ONTO A MATERIAL OF THE LIGHT SCATTERING, HEAT DEVELOPABLE TYPE COMPRISING A VEHICLE WHICH IS OPTICALLY SUBSTANTIALLY HOMOGENEOUS AND IN THE FORM OF A DRY FILM HAVING DISPERSED THEREIN A LIGHT DECOMPOSABLE SOLID AGENT WHICH IS SENSITIVE ONLY TO RADIATIONS IN THE REGION OF THE BLUE END OF THE VISIBLE SPECTRUM, SUBSTANTIALLY UNIFORMLY DISPERSED IN SAID VEHICLE AS THE SOLE ESSENTIAL IMAGE PRODUCING AGENT, SAID DECOMPOSABLE AGENT ITSELF BEING SUBSTANTIALLY NON-REACTIVE TO SAID VEHICLE AND UPON EXPOSURE TO LIGHT DECOMPOSING INTO PRODUCTS WHICH ARE ALSO CHEMICALLY SUBSTANTIALLY NONREACTIVE TO SAID VEHICLE AND WHICH PRODUCTS UPON WARMING ARE VOLATILE TO FORM RADIATION SCATTERING DISCONTINUITIES ONLY IN THE LIGHT STRUCK AREA IN SAID FILM TO THEREBY FURNISH AN IMAGE, SAID METHOD COMPRISING PLYING THE DOCUMENT AND SAID MATERIAL TOGETHER, IRRADIATING THE DOCUMENT WITH RADIATIONS IN THE REGIONS OF THE RED END OF THE SPECTRUM TO WHICH SAID MATERIAL IS SUBSTANTIALLY NOT SENSITIVE, AND THEN IRRADIATING THE PLIED DOCUMENT AND MATERIAL WITH SAID RADIATIONS IN THE REGION OF THE BLUE END OF THE VISIBLE SPECTRUM, WHEREBY SAID RADIATION OF THE RED END OF THE SPECTRUM IS ABSORBED SELECTIVELY BY SAID DOCUMENT TO RAISE THE TEMPERATURE OF THE AREA THEREOF BY WHICH IT IS ABSORBED PREFERENTIALLY, THEREBY ALSO SELECTIVELY HEATING THE AREAS OF THE SAID MATERIAL ADJACENT THERETO, TO REDUCE THE SENSISTIVITY OF SAID MATERIAL SELECTIVELY, AND THE BLUE END IRRADIATION PRODUCES A LATENT REFLEX COPY OF SAID DOCUMENT IN SAID MATERIAL OF IMPROVED CONTRAST, AND THEREAFTER HEAT DEVELOPING SAID MATERIAL TO FORM A REFLEX COPY AND BONDING AN OPAQUE BACKING THERETO.

Claim 2

A METHOD OF COPYING A DOCUMENT HAVING AREAS OF DIFFERING LIGHT ABSORPTION QUALITIES ONTO A MATERIAL OF THE LIGHT SCATTERING, HEAT DEVELOPABLE TYPE COMPRISING A VEHICLE WHICH IS OPTICALLY SUBSTANTIALLY HOMOGENEOUS AND IN THE FORM OF A DRY FILM HAVING DISPERSED THEREIN A LIGHT DECOMPOSABLE SOLID AGENT WHICH IS SENSITIVE ONLY TO RADIATIONS IN THE REGION OF THE BLUE END OF THE VISIBLE SPECTRUM, SUBSTANTIALLY UNIFORMLY DISPERSED IN SAID VEHICLE AS THE SOLE ESSENTIAL IMAGE PRODUCING AGENT, SAID DECOMPOSABLE AGENT ITSELF BEING SUBSTANTIALLY NON-REACTIVE TO SAID VEHICLE AND UPON EXPOSURE TO LIGHT DECOMPOSING INTO PRODUCTS WHICH ARE ALSO CHEMICALLY SUBSTANTIALLY NONREACTIVE TO SAID VEHICLE AND WHICH PRODUCTS UPON WARMING ARE VOLATILE TO FORM RADIATION SCATTERING DISCONTINUITIES ONLY IN THE LIGHT STRUCK AREA IN SAID FILM TO THEREBY FURNISH AN IMAGE, SAID METHOD COMPRISING PLYING THE DOCUMENT AND SAID MATERIAL TOGETHER, IRRADIATING THE DOCUMENT WITH RADIATIONS IN THE REGIONS OF THE RED END OF THE SPECTRUM TO WHICH SAID MATERIAL IS SUBSTANTIALLY NOT SENSITIVE, AND THEN IRRADIATING THE PLIED DOCUMENT AND MATERIAL WITH SAID RADIATIONS IN THE REGION OF THE BLUE END OF THE VISIBLE SPECTRUM, WHEREBY SAID RADIATION OF THE RED END OF THE SPECTRUM IS ABSORBED SELECTIVELY BY SAID DOCUMENT TO RAISE THE TEMPERATURE OF THE AREA THEREOF BY WHICH IT IS ABSORBED PREFERENTIALLY, THEREBY ALSO SELECTIVELY HEATING THE AREAS OF THE SAID MATERIAL ADJACENT THERETO, TO REDUCE THE SENSISTIVITY OF SAID MATERIAL SELECTIVELY, AND THE BLUE END IRRADIATION PRODUCES A LATENT REFLEX COPY OF SAID DOCUMENT IN SAID MATERIAL OF IMPROVED CONTRAST, AND THEREAFTER HEAT DEVELOPING SAID MATERIAL TO FORM A REFLEX COPY AND BONDING AN OPAQUE BACKING THERETO.