Infineon Technologies Ag

Maksym Sladkov

Boris Kirillov

Norbert Druml

Hendrikus Van Lierop

Philipp Greiner

Ievgeniia Maksymova

A light beam deflection system is configured to transmit a light beam at an output deflection angle that changes over time. The system includes a first resonant structure configured to oscillate about a first rotation axis at first resonant frequency; a second resonant structure configured to oscillate about a second rotation axis at a second resonant frequency, where the first rotation axis is parallel to the second rotation axis, and where the first resonant frequency and the second resonant frequency are different and define a predetermined frequency difference; and a driver circuit configured to generate a first driving signal to drive the first resonant structure while further generating a second driving signal to drive the second resonant structure such that the output deflection angle of the light beam oscillates according to a beat pattern of a beat wave whose extrema amplitudes are modulated and defined by a periodic envelope.

MEMS mirror system with slow light beam deflection using fast resonant oscillations about at least two resonant axes

An image projection system includes a cascaded waveguide system including a first waveguide and a second waveguide arranged downstream along a transmission path from the first waveguide. The first waveguide includes a first output structure and is configured to receive a light beam having a first beam width and output a first expanded light beam at the first output structure, wherein the first expanded light beam has a second beam width greater than the first beam width. The second waveguide includes a second output structure and is configured to receive the first expanded light beam from the first waveguide and output the first expanded light beam multiple times from the second output structure as a plurality of output light beams. Each of the plurality of output light beams is output from a different area of the second output structure along a propagation direction of the second waveguide.

Cascaded eyebox expansion in extended reality image projection devices

An oscillator system includes an oscillator structure configured to oscillate about a first axis according to a first oscillation and oscillate about a second axis according to a second oscillation; a first driver configured to drive the first oscillation, detect first zero-crossing events of the first mirror, and generate a first position signal based on the detected first zero-crossing events; a second driver configured to drive the second oscillation, detect second zero-crossing events of the second mirror, and generate a second position signal based on the detected second zero-crossing events; and a synchronization controller configured to receive the first and the second position signals, and synchronize at least one of a phase or a frequency of the second oscillation with at least one of a phase or a frequency of the first oscillation, respectively, based on the first and the second position signals.

Synchronization of microelectromechanical system (MEMS) mirrors

A multi-mirror system includes a first mirror configured to oscillate about a first axis; a second mirror configured to oscillate about a second axis; a first driver configured to drive an oscillation of the first mirror, detect first zero-crossing events of the first mirror, and generate a first position signal based on the detected first zero-crossing events; a second driver configured to drive an oscillation of the second mirror, detect second zero-crossing events of the second mirror, and generate a second position signal based on the detected second zero-crossing events; and a synchronization controller configured to receive the first and the second position signals, and synchronize at least one of a phase or a frequency of the oscillation of the second mirror with at least one of a phase or a frequency of the oscillation of the first mirror, respectively, based on the first and the second position signals.

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Graz, Austria

Maksym Sladkov