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:
Nov. 21, 2006
Filed:
May. 06, 2003
Ralf Bonitz, Elsheim, DE;
Ralf Biertuempel, Mainz, DE;
Wolfgang Semar, Mainz, DE;
Matthias Redey, Spiesheim, DE;
Ralf Bonitz, Elsheim, DE;
Ralf Biertuempel, Mainz, DE;
Wolfgang Semar, Mainz, DE;
Matthias Redey, Spiesheim, DE;
Schott AG, Mainz, DE;
Abstract
The optical lens, especially for a motor vehicle, is provided with a soft-focus effect, e.g. to soften a light-dark boundary on an illuminated surface. For this purpose the optical lens has an optically active surface (') provided with an embossed fine structure () extending radially outward in a direction from an optical axis (O) toward an outer periphery (P) in an undulating form and an embossed microstructure () superimposed on the embossed fine structure (). The fine structure () has a roughness that is greater than that of the microstructure (). The fine structure () preferably has a roughness of from 1 μm to 10 μm and the microstructure () has a roughness (h) in a range of from 0.1 μm to 2.5 μm.