Method for producing an optical element from plastic

US12325161B2 · kind B2 · utility

Assignee

• DOCTER OPTICS SE · DE

Inventors

• Florian PILZ · Neustadt an der Orla, DE
• Sven Fröhlich · Neustadt an der Orla, DE

Key dates

• Filing date: Oct 27, 2021
• Grant date: Jun 10, 2025
• Expiry date: Feb 27, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2031/40
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The disclosure relates to a method for producing an optical element having at least one optically effective surface. The optically effective surface comprises a contour and a surface structure superimposed on the contour. Transparent liquid plastic is injection-molded by means of a (smooth) injection mold of an injection molding machine (500) in dependence on a group of injection molding parameters to form an injection molded component (21) having the contour of the optically effective surface but without the surface structure superimposed on the contour, wherein at least one parameter of the group of injection molding parameters is set and/or corrected in dependence on properties of the injection molded component (21), and wherein the optical element is produced using the group of injection molding parameters.