The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 1976
Filed:
Oct. 19, 1973
Robert W Hallman, Orchard Lake, MI (US);
Stanford R Ovshinsky, Bloomfield Hills, MI (US);
John P DENeufville, Birmingham, MI (US);
Energy Conversion Devices, Inc., Troy, MI (US);
Abstract
A dispersion imaging material, such as tellurium, which disperses upon the absorption of energy above a certain threshold is provided in the form of a thin, continuous film, preferably on a substrate. Energy, in the form of a pulse, is applied to the continuous film in a pattern, which includes a plurality of regions, in an amount and for a length of time sufficient to cause dispersion of the dispersion imaging material simultaneously in all those regions which receive the energy. Preferably, the energy is applied through an imaging mask to produce a duplicate of the image. Sensitizing materials advantageously can be employed to form an indigenous mask on the dispersion imaging material. In addition, dispersion promoting materials can be utilized to enhance and accelerate the formation of a stable image. In the preferred embodiment of the method, the dispersion imaging material is carried on a substrate having a low heat conductivity.