Robert Boschgmbh

Alexander Ehlert

Frank Fischer

Gael Pilard

Daniel Kreye

Christoph Delfs

Felix Schmidt

Hendrik Specht

Julian Heinzelmann

Thomas Hilberath

Niklas Dittrich

Wolfgang Heinzelmann

Marcellino Gemelli

Mathias Schmauke

Christoph Puttmann

Simon Lieb

A laser projection device includes at least one first reflector element, which is linearly movable. A period of the at least one first reflector element corresponds to a period of time for reproducing a single. The laser projection device includes at least one second reflector element, which is movable in a sinusoidal manner, a semiperiod of a sine corresponding to one line. The at least one first reflector element and the at least one second reflector element are movable about two axes at least substantially perpendicular to each other. The laser projection device includes at least one control and/or regulating unit, which is configured to control and/or regulate the at least one first reflector element.

Laser projection device having starting point of reflector shifted

A laser projection device that includes at least one laser diode for generating at least one laser beam, and at least one movable mirror element for deflecting the at least one laser beam. The laser projection device includes at least one control and/or regulation unit that is designed to control and/or regulate a brightness of the at least one laser beam as a function of a relative deflection speed of the at least one laser beam.

Laser projection device, method for operating same, and laser projector

A laser projection device, including at least one reflector unit having at least one reflector element that is configured to deflect at least one laser beam to be projected, and having at least one drive unit that is configured to excite at least the reflector element into resonant vibration. The laser projection device includes at least one temperature compensation unit, which is configured to acquire a vibrational frequency of at least the reflector element and to ascertain the temperature of the reflector unit from it.

Laser projection device

A laser projection device, including at least one laser diode for generating at least one laser beam. The laser projection device includes at least one laser driver for operating the at least one laser diode; at least one image processing circuit to supply control data for the at least one laser driver; at least one central processor and/or driver; and at least one control and/or regulating unit, which is configured to block the at least one laser driver in response to an occurrence of at least one fault. The at least one control and/or regulating unit includes at least one nonvolatile memory, in which at least a minimum set of monitoring functions is stored.

Laser projection device, method for its operation, and laser projector

A detection device, which includes a scanning module, a detection module operated at a distance from the scanning module, and an evaluation unit. The scanning module includes a laser light source for generating a laser beam, a deflection unit to deflect the beam, and a control unit for controlling the laser light source and the deflection unit, so that the beam is moved in a scanning pattern. The detection module includes a light detector, with which the light of the beam reflected on an object in the beam path is detected and converted into a received signal. The first laser light source is controlled so that the beam is modulated as a function of its deflection and in this way is provided with synchronization marks. The evaluation unit identifies these synchronization marks in the received signal and synchronizes the received signal with the deflection of the beam based on them.

Device for implementing a detection function and method for operating such a device

A method for calibrating a projection device, the projection device being equipped with at least two controllable and regulatable light sources, which each transmit a beam component of a scanning beam. The calibration method includes defining a reference beam for the scanning beam; determining, in each instance, a dewarping function for the x-projector coordinate and for the y-projector coordinate of the reference beam, each dewarping function converting the specific projector coordinate to corresponding image coordinates, which are assigned to the image information; determining, in each instance, an offset function for the x-projector coordinate and the y-projector coordinate for all beam components, each offset function approximating the offset between the specific x- or y-image coordinate of the reference beam and the x- or y-image coordinate of the respective beam component.

Method for calibrating a projection device and method for operating a projection device calibrated in this manner

A method and a projector for projecting an image pixel by pixel includes a control unit controlling a light diode device for emitting visible light, pixel by pixel, in accordance with the image to be projected and controlling an infrared diode device for emitting infrared radiation pixel by pixel based on the image to be projected and on a back radiation model, in such a way that a setpoint back radiation intensity measuring signal to be expected pixel by pixel for the actual back radiation intensity measuring signal has a predetermined value for predetermined pixels; and a radiation intensity detection device detecting pixel by pixel a back radiation intensity of reflected visible light and reflected infrared radiation and generating pixel by pixel an actual back radiation intensity measuring signal based on the detected back radiation intensities.

Projector and method for projecting an image pixel by pixel

A laser projection device is described for projecting laser beams onto a projection plane, including a controllable multibeam laser diode unit; including a controllable optical deflection unit, which is designed in such a way that laser beams generated by the multibeam laser diode unit are deflected with the aid of the deflection unit; and including a control unit, which is designed in such a way that it controls the deflection unit to move laser beams deflected by the deflection unit onto a projection plane along a scanning line in such a way that different deflected laser beams run in the projection plane on the same scanning line.

Laser projection device and laser projection method for projecting laser beams onto a projection plane

A projector having at least one laser diode which is designed to emit light, having a laser control device which is designed to control the at least one laser diode, having a first controllable resonant mirror which is designed to reflect the light that is emitted by the laser diode, and having a control device which is designed to control the orientation of the first controllable resonant mirror. The control device is further designed to reduce the power supply to the laser diode and to the laser control device in a first configuration of a power-saving mode of the projector, and to further control the orientation of the first controllable resonant mirror at a resonant frequency of the first controllable resonant mirror. Moreover, a corresponding method is described.

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Reutlingen, Germany

Alexander Ehlert