DEFLECTION SYSTEM FOR A PROJECTION DEVICE, PROJECTION DEVICE FOR PROJECTING AN IMAGE AND METHOD FOR ACTUATING A DEFLECTION SYSTEM FOR A PROJECTION DEVICE

摘要

The invention relates to a deflection system for a projection device for projecting lissajous figures onto an observation field. The deflection unit is designed to deflect a light beam about at least one first and a second deflection axis in order to generate lissajous figures, and comprises a deflection unit for generating oscillations about the deflection axes and a control device for generating actuating signals for the deflection unit that have a first and a second actuating frequency that substantially correspond to the resonance frequencies of the deflection unit, wherein the deflection unit has a quality factor of 3.000 and the control device comprises a control circuit that is designed to control the first and/or the second control frequencies depending on a measured phase position of the oscillations of the deflection unit such that the maximum amplitude of the oscillations remains in the resonance range of the deflection unit. The invention further relates to a projection device comprising such a deflection system and to a method for actuating a corresponding deflection system.