Gp Inspect Gmbh

Braun Gmbh

Christian Probst

Marc Hemsendorf

Norbert Schaefer

Martin Haas

Daniel Dietzel

Stefan Meier

Vitaly Bezgachev

Stefan Recht

Stephanus Wansleben

A personal hygiene device, in particular a toothbrush, has a handle, a treatment head mounted for relative movement with respect to the handle against a spring force when a treatment force is applied in at least one direction onto the treatment head, a treatment-force-measurement unit for determining the applied treatment force comprising an electrically powered coil, a coil core element, and a control circuit for determining a parameter indicative of the inductance of the coil, wherein the coil core element is arranged to be moved with respect to the coil when the treatment head is moved.

Personal hygiene device having treatment-force-measurement unit

A method of examining an object containing a polycrystalline material, in which at least one part of the surface of the object is illuminated with substantially isotropic light, as well as a illumination device for carrying out the method. In this manner, the polycrystalline material is less influenced by the different reflection characteristics of individual particles of the polycrystalline material.

Lighting device

A method for detecting defects in an object includes a step of locally illuminating the object by radiating in light having a wavelength to which the object is transparent. Multiply reflected components of the incident light are detected while the detection of directly transmitted components of the incident light is at least partly avoided and the detection of singly reflected components of the incident light is at least partly avoided. Defects are identified by evaluating intensity differences in the detected components of the incident light. There is also disclosed a device for carrying out the method.

Method and device for the detection of defects in an object

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Munich, Germany

Christian Probst