Browse Prior Art Database

METHOD OF MAKING CRT XEROGRAPHIC FACE PLATES

IP.com Disclosure Number: IPCOM000026343D
Original Publication Date: 1991-Jun-30
Included in the Prior Art Database: 2004-Apr-05

Publishing Venue

Xerox Disclosure Journal

Abstract

A method of making xerographically developable cathode ray tubes (CRT) is disclosed. A known process for making CRT fiber optic face plates comprises: hsing multiple composite glass rods, having cores with a lower refractive index and glass shells with a higher refractive index (FIG. 1) to one another providing a single fused bundle; heating and laterally stretching the fused bundle into a new rod (FIG. 3) having approximately the same diameter as a single composite rod; cutting and fusing the stretched fused bundle into a second composite rod and repeating the steps of stretching, cutting and fusing until a desired rod density is achieved; slicing the final rod into hexagonally shaped platelets (FIG. 4); fusing edges of the hexagonal slices together forming a matrix; and finishing the matrix by grinding and polishing to provide a fiber optic face place (FIG. 5).