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. 29, 2008
Filed:
Apr. 08, 2003
Ralf Bonitz, Mainz, DE;
Rainer Adebahr, Gruenenplan, DE;
Ralf Bonitz, Mainz, DE;
Rainer Adebahr, Gruenenplan, DE;
Schott AG, Mainz, DE;
Abstract
The plano-convex lens of a projection headlight has a holding edge () integrally formed on an outer lens edge and a supporting edge () projecting from its plane surface () and formed integrally with the holding edge (). The supporting edge () and the holding edge () form a continuous cylindrical outer circumferential surface () extending over their outer sides. The convex surface () and the plane surface () of the lens are bright pressed surfaces so that the grinding and polishing steps usually used in making the lens can be eliminated. The method of manufacturing the lens including bright pressing the convex and plane surfaces is also part of the invention.