Apparatus for detecting a modulation transfer function and centering of an optical system

US11340136B2 · kind B2 · utility

Assignee

• Trioptics GmbH · DE

Inventors

• Eugen Dumitrescu · Wedel, DE
• Patrik Langehanenberg · Wedel, DE
• Iris Erichsen · Hetlingen, DE
• Alexander Bai · Bremen, DE
• Simon Zilian · Hamburg, DE
• Aiko Ruprecht · Wedel, DE

Key dates

• Filing date: Feb 18, 2021
• Grant date: May 24, 2022
• Expiry date: Feb 18, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B13/001
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to an apparatus (2) for detecting imaging quality of an optical system (4) with at least one lens (6) or lens group. The apparatus (2) includes an MTF measuring apparatus (10) for measuring a modulation transfer function at a plurality of field points in the field of view of the optical system (4), and a centering measuring apparatus (18) for measuring a centered state of the optical system (4).