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:
Jun. 30, 1992
Filed:
Jun. 18, 1991
Daniel D Duggan, Sr, Roanoke, VA (US);
ITT Corporation, New York, NY (US);
Abstract
A fiber optic phosphor screen is made of an optical fiber bundle having individual fibers arranged in parallel with opposite ends thereof extending between internal and external surfaces of the screen. The ends of the individual fibers at the internal surface of the screen have phosphor islands bonded only to the core portions in order to provide a pseudo-intagliated phosphor layer. A reflective layer is coated over the phosphor islands in between on the cladding portions of the fibers. A method for producing the fiber optic phosphor screen includes the steps of applying a phosphor-photoresist layer to the ends of the fibers at the internal surface of the screen, illuminating the opposite ends of the fibers such that only the portions of the phosphor-photoresist layer on the core portions of the fibers are developed and bonded thereto, and removing the undeveloped portions of the phosphor-photoresist layer to leave behind phosphor islands bonded to the core portions.