Verfahren und Vorrichtung zur Anomaliedetektion für eine Linse

Details

Veröffentlichungs-Nr.

EP4800367

Anmeldetag

27. Februar 2025

Veröffentlichung

2. September 2026

Rechtsraum

EP

IPC

G01M11/02, G01N21/958

Abstract

A method of anomaly detection for a lens and a corresponding apparatus is provided. The detecting of an anomaly is based on a plurality of images of the lens illuminated with a pattern that is periodic in a modulation direction, wherein the pattern is phase-shifted from image to image. Phase progression rate for a plurality of positions on the lens are determined based on the plurality of images, and the anomaly is detected based on deviations between the phase progression rate for different positions on the lens.

Anmelder

Firma

Carl Zeiss Vision International GmbH

Land

🇩🇪 Deutschland

Fachgebiete