Ulrich Streppel

Semiconductor light source for light source arrangement of projector, has reflector element guiding primary radiation on luminescence material or deflects secondary radiation delivered from material in direction of primary radiation source

Optical Element and Radiation-Emitting Device Comprising Such an Optical Element

Beleuchtungseinrichtung für eine Kamera sowie Verfahren zum Betrieb derselben

Illumination device for a camera, and method for operating the same

Lens, optoelectronic component comprising a lens and method for producing a lens

Lighting device for a camera and method for operating the same

Optoelectronic device and image recording device

Optoelectronic semiconductor device for use as flash-unit in e.g. mobile telephone, has two chips arranged downstream of two conversion elements, respectively, where color temperature of light emitted from device is adjustable

Opto-electronic projection device, has luminescence diode chip provided as image providing element, and optical element arranged downstream to diode chip in radiation direction, where device generates predetermined image in operation

Optisches Element und optoelektronisches Bauelement mit optischem Element