Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Thomas Von Wantoch

Ulrich Hofmann

Frank Senger

Christian Mallas

Joachim Janes

Hans-Joachim Quenzer

Thomas Lisec

Manfred Weiss

A converter assembly for converting a primary light into a secondary light includes at least one element which has a light-converting structure with open pores and which is laterally held by a frame. The surfaces of both the light-converting structure as well as of the inner face of the frame are covered with a transparent layer such that each of the afore-mentioned elements forms a region in which a property of the incident light and preferably of the wavelength thereof is changed. In specific embodiments, the converter assembly can be part of display assemblies or of miniaturized components for example. There is also described a method for producing the converter assembly.

Converter for generating a secondary light from a primary light, light-emitting elements which contains such a converter, and method for producing the converter and the light-emitting elements

The invention relates to an appliance for detecting objects in a detection region, with a radiation device for emitting an electromagnetic scanning beam into at least a part of the detection region and with a device for modulating the scanning beam as well as with a detection device for the detection of reflected radiation from at least a part of the detection region and with a device for evaluating the time response of the detected, reflected radiation, in dependence on the modulation of the scanning beam. According to the invention, one can envisage the radiation device comprising a radiation source radiating a diffusion device scattering the radiation at least partly into the detection region, in order to be able to apply an as powerful as possible laser as a t source without endangering the eye safety or the general safety of persons.

Appliance and method for detecting objects in a detection region

A method for activating a deflection device comprising at least one deflection unit, for a projection device for projecting trajectories upon a projection surface, wherein the deflection device deflects electromagnetic radiation which is directed upon it, for producing trajectories, and the at least one deflection unit is activated by way of an activation signal delivered from a control device, for producing oscillations in each case with a turning amplitude at a direction change of the oscillation, about at least one deflection axis, wherein in the case of resonance, the oscillations have a maximal amplitude, at which the produced trajectories reach an edge of the projection surface. The activation signal is set in a manner such that the turning amplitude of the oscillations at least temporarily has a predefined value outside a region of the maximal amplitude of the oscillations, and an intensity distribution of the produced trajectories on the projection surface is achieved with a predefined intensity pattern. The document moreover relates to a deflection device as well as to a projection device.

Method for activating a deflection device for a projection device, a deflection device for a projection device, and a projection device

What is proposed is: a micromirror arrangement which comprises: a first spring-mass oscillator, which has an oscillatory body forming a mirror plate () and first spring elements (); a second spring-mass oscillator, which has a drive plate () and second spring elements () and which is connected to a carrier arrangement () via the second spring elements (), wherein the first spring-mass oscillator is suspended in the second spring-mass oscillator via the first spring elements (); and a drive arrangement (), which is assigned to the drive plate and is designed to cause the drive plate () to oscillate. The oscillatory body () is suspended, movably on two axes, via the first spring elements () on the drive plate (), and the drive plate () is connected, movably on two axes, to the carrier arrangement (), wherein the drive arrangement () is embodied as a two-axis drive and is designed to drive the drive plate () on two axes such that the oscillatory body () oscillates on two axes at in each case one of its orthogonal eigenmodes or close to this eigenmode.

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Kiel, Germany

Thomas Von Wantoch