Robert Boschgmbh

Thomson Licensing

Koninklijke Philips Corporation N.v.

Thomas Licensing

Gael Pilard

Frank Fischer

Christophe Fery

Larisa Von Riewel

Herbert Hoelzemann

Reiner Schnitzer

Stephan Knappmann

Hendrik Specht

Niklas Dittrich

Dietmar Hepper

Andreas Petersen

Alexander Ehlert

Sebastian Reiss

Christoph Delfs

Lutz Rauscher

Simon Pick

Ming Liu

Joachim Knittel

Alexander Marc Van Der Lee

Heiko Ridderbusch

Hartmut Richter

Reinhold Fiess

Frank Przygodda

Xiaoming Chen

Oliver Theis

Daniel Kreye

Jochen Hellmig

David Slogsnat

Tobias Hipp

Thomas Hilberath

Peter Ostertag

Felix Schmidt

Wolfgang Heinzelmann

Alois Kern

Thomas Kuenstle

Christian Nitschke

Andrea Marchini

Johannes Hofmann

Martin Edel

Joerg Carls

Maximilian Busch

Frank Pizygodda

Eva Lea Elisabeth Empting

Tadiyos Alemayehu

Sebastion Reiss

Georg Mrusek

Larissa Von Riewel

Larisa Pacearescu

An optical system for a virtual retinal scan display. The optical system includes an image source which supplies image data, an image processing device for the image data, a projector unit having a light source modulatable in time for generating a light beam, and an actuable refraction device for the light beam for the scanning projection of the image content, a deflection unit onto which the image content is able to be projected and which is designed to guide the projected image content onto an eye of a user, and an adaptive optical element for modifying a beam divergence, which is situated in the optical path between the light source and the deflection unit. The adaptive optical element is able to be actuated so that the beam divergence of the light beam is variable as a function of the angle of incidence of the light beam on the deflection unit.

Optical system for a virtual retinal scan display, and method for projecting image content onto a retina

A light-emitting device, having a laser light device that is designed to emit a multiplicity of laser light beams. Ellipticities of beam cross-sections of the laser light beams differ at least partly from one another. The light-emitting device includes a beamforming device that is introduced into the beam path of at least one of the laser light beams and that is designed to adapt the ellipticities of the beam cross-sections of the laser light beams to one another, and a beam-combining device that is designed to combine the laser light beams to form an overall light beam, after the adapting of the ellipticities of the beam cross-sections by the beamforming device.

Light-emitting device and method for emitting light

An optical combination device for projecting an image onto an impingement region. The device includes at least a first and a second layer which are mutually spaced apart at a distance. The first layer has a shorter distance to the impingement region than the second layer. The first layer has at least two functional regions which are mutually spatially separate. The first and the second layers are formed to transmit a portion of the beam, which is incident on a first functional region, in the direction of the second layer, and to propagate the transmitted portion between the first and second layers at least partially along a direction of extent of the at least two layers, and to provide the at least partially propagated beam as outgoing beam in the direction of the impingement region via a second functional region of the first layer.

Optical combination device for projecting an image

A projection device for smart glasses. The projection device includes an image generating unit for generating at least one first light beam representing image information, and at least one deflecting element, which is configured to deflect the first light beam in the form of a second light beam representing first image information, and to deflect the first light beam in the form of a third light beam representing second image information, into a first field of vision and/or into a second field of vision of an eye; the second light beam and the third light beam differing with regard to a beam divergence; and the second field of vision and the first field of vision at least overlapping.

Projection device for smart glasses, method for representing image information, using a projection device, and control unit

A mirror device including a micromirror, which is excitable to an oscillatory motion such that a first impingement angle of a beam of light impinging upon its reflective surface varies within a first value range, and a cover element, which is stationary so that, due to the reflection at the reflective surface, the beam impinges upon at least one inner surface of the cover element and partially impinges as reflection beam upon the reflective surface. The cover element is aligned at an incline relative to a neutral position of the micromirror such that a second impingement angle of the reflection beam impinging upon the micromirror lies within a second value range outside the first value range. The reflective surface has a coating, which has a reflection coefficient of at least 0.6 for the first value range and a reflection coefficient of maximally 0.4 for the second value range.

Mirror device and production method for a mirror device

A device for projecting an image. The device has a laser device, which is developed to emit a laser beam, the laser device having a modulation unit, which is developed to modulate image data onto the laser beam; and a micromirror device, which is developed to deflect the laser beam in a linear manner. The modulation unit is developed to modulate the laser beam in such a way that a predefined optical warning signal is emitted in a region around reversal points of the linear deflection.

Device and method for projecting an image

A method is described for generating a visible image on a projection surface, in the course of which visible light is emitted from a first laser resonator, the visible light is deflected in the direction of the projection surface with the aid of a deflection element, in particular a micromirror, in order to generate the image, and a light spot of visible light is generated on the deflection element, and invisible light is emitted from a second laser resonator, and a light ring is generated on the deflection element from the invisible light, which enlarges the light spot.

Method and device for generating a visible image on a projection surface

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 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.

3D laser scanner

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.

Particulate sensor device

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 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.

Laser module having a duochromatic laser diode for a portable image projector

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.

Method for reducing a light intensity of a projection device

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.

Method for orientating a grid mirror and grid mirror device

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.

Method and device for determining gestures in the beam region of a projector

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Wankheim, Germany

Gael Pilard