Abstract: 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.

Abstract: An object recognition device having a VCSEL Doppler sensor and an MEMS scanner; the MEMS scanner having at least one deflectable MEMS mirror for scanning an angular region using a laser beam from the VCSEL Doppler sensor; the VCSEL Doppler sensor being connected to a Doppler control and evaluation element that is adapted for determining the velocity and/or the distance of an object.

Abstract: A module for measuring an object located in a position finding zone; the module being configured for generating a primary beam; the module having a scanning mirror structure; the scanning mirror structure being controllable to allow the primary beam to execute a scanning movement within the position finding zone; the module being configured to allow a secondary signal to be detected when the secondary signal is produced in response to the interaction of the primary beam with the object in a deflection position of the scanning mirror structure; the module being configured to generate position finding information as a function of the deflection position of the scanning mirror structure; the module featuring a semiconductor laser component; the semiconductor laser component being configured for producing the primary beam and for detecting the secondary signal.

Abstract: 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.

Abstract: A laser module is described for an image projection system, which has a duochromatic laser diode designed to generate a first beam bundle having laser light of a first wavelength and laser light of a second wavelength; a first collimating optics system designed to collimate the first beam bundle; at least one first monochromatic laser diode designed to generate a second beam bundle having laser light of a third wavelength; a second collimating optics system designed to collimate the second beam bundle; and a first optical combination device developed to combine the first and second beam bundles in order to form an output beam bundle of the laser module.

Abstract: A particle sensor apparatus having an optical emitter device that is configured to emit an optical radiation so that a volume having at least one particle possibly present therein is at least partly illuminatable; an optical detector device having at least one detection surface that is struck by at least a portion of the optical radiation scattered at the at least one particle, at least one information signal regarding an intensity and/or an intensity distribution of the optical radiation striking the at least one detection surface being outputtable; and an evaluation device with which an information item regarding a presence of particles, a number of particles, a particle density, and/or at least one property of particles is identifiable and outputtable, the particle sensor apparatus also encompassing at least one lens element that is disposed so that the emitted optical radiation is focusable onto a focus region inside the volume.

Abstract: A method for reducing a light intensity of a projection device is provided which includes the following steps: projecting information in the form of a visual representation onto a total area; emitting a plurality of electromagnetic signals which are essentially imperceptible to an observer onto the total area, using the projection device; detecting objects situated in the light path between the projection device and the total area with the aid of the electromagnetic signals; and reducing the light intensity of the projection device as long as an object is detected in the light path.

Abstract: A light source device, in particular for use in a micromirror device, having a first red light source for the emission of light from the red spectral range, a second red light source for the emission of light from the red spectral range, a green light source for the emission of light from the green spectral range, and a blue light source for the emission of light from the blue spectral range, and having superposition element, the superposition element being configured such that the light from the first red light source, the light from the second red light source, the light from the blue light source, and the light from the green light source are superposed in collinear fashion to form a common light beam, the light from the first red light source having a wavelength different from that of the light from the second red light source.

Abstract: A method is described for aligning a light beam, having the steps of: deflecting the light beam by way of a first mirror element and a second mirror element, the first mirror element being displaced through a first deflection angle around a first rotation axis, and the second mirror element being displaced through a second deflection angle around a second rotation axis inclined with respect to the first rotation axis, and the second mirror element being additionally displaced through a third deflection angle around a third rotation axis that is inclined with respect to the second rotation axis, and the first mirror element being displaced around a first mirror normal line of the first mirror element through a first compensation angle defined for the third deflection angle, and/or the second mirror element being displaced around a second mirror normal line of the second mirror element through a second compensation angle defined for the third deflection angle.

Abstract: A method for determining gestures in the beam region of a projector includes: projecting an image onto a surface with the aid of the projector, using light; measuring a first set of light intensities of light backscattered from the direction of the surface, under the influence of a gesture made in the beam region of the projector; assigning the measured light intensities to, in each instance, a position of the image projected by the projector; at a first time point, generating a first light intensity function over a second set of positions, which are assigned measured light intensities; at a second time point, generating at least one second light intensity function over the second set of positions; and determining the gesture made, based on the result of a comparison between the first and second light intensity functions.

Abstract: A multi-laser projection device includes: a plurality of first assemblies, each including a fixed assemblage of a respective laser diode and an associated first collimator lens; a second assembly that forms a fixed assemblage of a beam combiner and a respective second collimator lens that is fastened on an entry surface of the beam combiner and that appertains to a respective laser diode; and a deflection unit. The plurality of first assemblies, the second assembly, and the deflection unit are mounted in a common housing so as to be adjusted to one another.

Abstract: A laser module includes a first laser light source, a second laser light source, and a third laser light source. Laser beams of the laser light sources are combinable into an overall laser beam. The laser beam of the first laser light source and the laser beam of the second laser light source have a first polarization, and the laser beam of the third laser light source has a second polarization. The laser beams of the first and the third laser light sources are coupled into the overall laser beam with the aid of mirror devices. The laser beam of the second laser light source is split, the polarization of the laser beam of the second laser light source being changed from the first polarization to the second polarization in a splitting path.

Abstract: An identification device includes a portable key device which has a first memory device for storing an associated identifier and a projector device which is configured to project an optical code matrix, which is based on the identifier, as an image, and a lock device which is configured to detect the image of the optical code matrix projected by the projector device via a sensor device, and to carry out an image analysis of the detected image of the optical code matrix via an identification device, and on the basis thereof, to identify the portable key device with the aid of a comparison of the identifier analyzed from the optical code matrix with identifiers stored in a second memory device of the lock device.

Abstract: A method for adapting a line frequency of a digital data signal of a projection device includes: providing data about at least one mechanical natural frequency of a mirror device of the projection device and about a storage capacity of a line buffer of an image processing device; detecting a first image resolution of a video signal of a video source device with the aid of the image processing device; and computing a second image resolution having an adapted vertical resolution of the digital data signal based on the detected first image resolution of the video signal as a function of the at least one mechanical natural frequency of the mirror device and the storage capacity of the line buffer with the aid of the image processing device to adapt the line frequency of the digital data signal of the projection device.

Abstract: A method for reducing a light intensity of a projection device is provided which includes the following steps: projecting information in the form of a visual representation onto a total area; emitting a plurality of electromagnetic signals which are essentially imperceptible to an observer onto the total area, using the projection device; detecting objects situated in the light path between the projection device and the total area with the aid of the electromagnetic signals; and reducing the light intensity of the projection device as long as an object is detected in the light path.

Abstract: A laser module is described for an image projection system, which has a duochromatic laser diode designed to generate a first beam bundle having laser light of a first wavelength and laser light of a second wavelength; a first collimating optics system designed to collimate the first beam bundle; at least one first monochromatic laser diode designed to generate a second beam bundle having laser light of a third wavelength; a second collimating optics system designed to collimate the second beam bundle; and a first optical combination device developed to combine the first and second beam bundles in order to form an output beam bundle of the laser module.

Abstract: A telecommunication device has: a projection unit for projecting image information on a projection surface situated outside the telecommunications device, the image information being projected onto the projection surface (i) with the aid of at least one optical element in a projection beam path for sequentially constructing an image, and (ii) for momentarily spatially limiting the projection relative to the total area of the image information on the projection surface; and a detection unit. During projection a movement of the projection surface, e.g., a displacement or a rotation, takes place relative to the projection unit. The detection unit detects the movement of the projection surface with the aid of a reflection signal passing along a detection beam path, the projection beam path and the detection beam path coinciding at least in the area of the at least one optical element.

Abstract: A multi-laser projection device includes: a plurality of first assemblies, each including a fixed assemblage of a respective laser diode and an associated first collimator lens; a second assembly that forms a fixed assemblage of a beam combiner and a respective second collimator lens that is fastened on an entry surface of the beam combiner and that appertains to a respective laser diode; and a deflection unit. The plurality of first assemblies, the second assembly, and the deflection unit are mounted in a common housing so as to be adjusted to one another.

Abstract: In accordance with an exemplary embodiment of the present invention, a method for measuring a quality parameter of an optical storage system comprising a non-diffraction-limited optical storage medium and a readout device, the method comprising the process of deriving an impulse response of the optical storage system, and the process of analyzing the impulse response to determine at least one of a width of the impulse response and a skewness of the impulse response as the quality parameter.

Abstract: A method for determining gestures in the beam region of a projector includes: projecting an image onto a surface with the aid of the projector, using light; measuring a first set of light intensities of light backscattered from the direction of the surface, under the influence of a gesture made in the beam region of the projector; assigning the measured light intensities to, in each instance, a position of the image projected by the projector; at a first time point, generating a first light intensity function over a second set of positions, which are assigned measured light intensities; at a second time point, generating at least one second light intensity function over the second set of positions; and determining the gesture made, based on the result of a comparison between the first and second light intensity functions.