Method and system for generating a light field with multiple localized null points

US11885948B2 · kind B2 · utility

Assignee

• LEIBNIZ-INSTITUT FUR PHOTONISCHE TECHNOLOGIEN E.V. · DE

Inventors

• Rainer Heintzmann · Oebisfelde, DE
• Alexander Jügler · Jena, DE

Key dates

• Filing date: Dec 16, 2020
• Grant date: Jan 30, 2024
• Expiry date: Dec 16, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B27/58
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present disclosure relates to a method and system for generating a light field in a specified working region using an at least partly coherent light source. For example, light from the light source can be fed to at least one modulator which causes different changes in at least one property of the light in different components of the light. The modulator can be actuated with a null point actuation pattern such that the sum of the amplitude distributions of the light components guided via the modulator has null points at at least two positions which can be specified independently of each other in the working region. Each null point adjoining a respective region in which the sum of the amplitude distributions can differs from null. The light can be guided from the modulator into the working region.