Process for the production of an optical lens

US8025818B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Jochen Alkemper · Klein-Winternheim, DE
• Joe Hayden · Clarks Summit, US
• Jose Zimmer · Ingelheim am Rhein, DE
• Frank-Thomas Lentes · Bingen, DE
• Steffen Reichel · Mehlingen, DE
• Ulrich Peuchert · Bodenheim, DE

Key dates

• Filing date: Feb 4, 2010
• Grant date: Sep 27, 2011
• Expiry date: Feb 4, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B5/1857
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to an optical hybrid lens. According to the invention, the lens consists of a substrate (1) that consists of a ceramic having a predetermined shape and at least another material (2), which covers a surface of the substrate (1) at least in certain sections in order to form a lens surface.Use of an optical ceramic as a material enables an additional degree of freedom for adjusting the imaging properties of the hybrid lens. The optical ceramic may have a high refractive index and a low dispersion. The other material can be a material that can be deformed or recast at temperatures that are low in comparison to those of the optical ceramic. In particular the other material can be a low-TG glass or a polymer. The other material is directly applied onto the substrate without a further surface finishing being necessarily required.Other aspects of the invention relate to an optical lens group, an optical image acquisition device, and a process for manufacturing a hybrid lens.