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:
Apr. 09, 2002
Filed:
Jan. 13, 2000
Cathy M. Shaw, Manchester, MA (US);
Susan L. Callahan, Peterborough, NH (US);
Paul A. Young, Merrimack, NH (US);
Osram Sylvania Inc., Danvers, MA (US);
Abstract
The invention involves application of a luster coating to the exterior of a glass lamp capsule envelope to obtain a blue coloration of the transmitted light. The result is a higher color temperature light source that is commercially preferred. The preferred blue luster is formed from a coating solution containing organometallic components and solvent, that is heat treated in an oxidizing atmosphere to form a gold containing bismuth-titanium oxide material. The filament is adjusted to yield the overall necessary number of lumens. The blue luster tinted automobile lamp capsule is a durable, and yields the proper number of lumens with little or no increase in glare. The blue luster tinted lamp capsule is therefore compliant with legal standards.