Headlight lens

US9447939B2 · kind B2 · utility

Assignee

• DOCTER OPTICS SE · DE

Inventors

• Wolfram Wintzer · Jena, DE
• Dmitry Fedosik · Lippstadt, DE

Key dates

• Filing date: Apr 18, 2013
• Grant date: Sep 20, 2016
• Expiry date: Sep 27, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03B2215/49
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A method for producing a vehicle headlamp lens having at least one light entry surface and at least one optically effective light exit surface wherein glass, (for example, in gob and/or liquid form) is blank-pressed between a first mold and at least one second mold to form a one-piece member comprising a first partial light conducting part and a light tunnel, which transitions into the first partial light conducting part by means of a bend. The glass is, for example, drawn into the second mold by means of an under pressure and the first partial light conducting part is at least partially over molded with transparent plastic to form a second partial light conducting part so that the first partial light conducting part and the second partial light conducting part form and/or shape a light conducting part for imaging the bend as a light-shadow line.