The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2026
Filed:
May. 05, 2022
Oqmented Gmbh, Itzehoe, DE;
Leon Pohl, Schwentinental, DE;
Ulrich Hofmann, Itzehoe, DE;
Thomas Von Wantoch, Kiel, DE;
Peter Blicharski, Essen, DE;
Oleg Petrak, Itzehoe, DE;
Christian Janicke, Kiel, DE;
OQMENTED GMBH, Itzehoe, DE;
Abstract
A projection system for projecting Lissajous figures on an observation field includes a microscanner. This has a deflection unit having a deflection element for deflecting an incident electromagnetic beam, a support structure, and a spring device, by means of which the deflection element is suspended in a gimballess manner on the support structure in such a way that, relative to the support structure, it can simultaneously perform a first rotary oscillation around a first oscillation axis and a second rotary oscillation around a second oscillation axis orthogonal thereto to cause a non-linear Lissajous projection in an observation field by deflecting an electromagnetic beam incident on the deflection element during the simultaneous oscillations. The microscanner also has a control device that is configured to activate a drive device for driving the deflection unit in such a way that a respective, in particular resonant, drive effect with respect to at least one of the oscillations of the deflection element is settable individually. Furthermore, the spring device is designed in such a way that it mediates an amplitude-dependent mutual coupling between the oscillations. The control device is also configured to activate the drive device as a function of at least one detected state variable of the first oscillation in order to induce a drive effect on the second oscillation by influencing at least one state variable of the second oscillation, which counteracts falling below a predetermined minimum frequency distance between the respective instantaneous oscillation frequencies of the first oscillation and the second oscillation.