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:
Oct. 03, 1995
Filed:
Nov. 18, 1993
Hermanus N Tuin, Eindhoven, NL;
Maarten A van Andel, Eindhoven, NL;
Rudolf O Lobel, Eindhoven, NL;
Johannes H Damen, Eindhoven, NL;
Marcel Niestadt, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The inner surface of a cathode ray tube is roughened by blasting the surface with a suspension which comprises radiation particles, the inner surface being irradiated in such a manner that it satisfies the inequalities 0.05 .mu.m<R.sub.a <0.5 .mu.m and R.sub.z <4 .mu.m and, preferably, 0.1 .mu.m<R.sub.a <0.2 .mu.m. The reflection at such a surface is comparable to the reflection at an etched surface. The method in accordance with the invention is safer and less harmful to the environment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile