Abstract: The present application is concerned with a skin treatment device that has a handle section arranged to be held in a human user's hand, a treatment head section having a skin treatment unit and a skin contact frame having a skin contact surface, the skin contact frame at least partially encircling a skin treatment area and a vibration generation unit being coupled with the skin contact frame to vibrate at least a portion of the skin contact frame at an ultrasonic frequency.

Abstract: The invention provides techniques for estimating a skin coverage in a usage session of a light-emitting hair growth management device. Sensor data from one or more sensors of the light-emitting hair growth management device is used by a rules-based algorithm and/or machine learning algorithm to estimate the coverage of a target body part or parts achieved in the usage session. This information is fed back to a user of the hair growth management device via a graphical user interface. In another aspect the invention provides a scheduling application that is able to dynamically adjust a usage plan comprising one or more usage sessions of a light-emitting hair growth management device based on information about the level of hair growth management achieved in a given usage session.

Abstract: The present application is concerned with a skin treatment device that has a handle section arranged to be held in a human user's hand, a treatment head section having a skin treatment unit and a skin contact frame having a skin contact surface, the skin contact frame at least partially encircling a skin treatment area and a vibration generation unit being coupled with the skin contact frame to vibrate at least a portion of the skin contact frame at an ultrasonic frequency.

Abstract: The present disclosure is concerned with a system for assessing the usage of an envisaged manually movable consumer product by a user. The system has a manually movable consumer product mockup, a simulation subsystem having a display unit for presenting at least partially simulated content and a simulation processing unit for providing the simulated content, a tracking subsystem arranged for tracking at least the motion of the manually movable consumer product mockup with respect to a reference system, a data processing subsystem for receiving usage data. The simulation subsystem is arranged to simulate at least one property or feature of the envisaged manually movable consumer product and to present this property or feature as simulated content via the display unit.

Abstract: The present disclosure is concerned with a system for assessing the usage of an envisaged manually movable consumer product by a user. The system has a manually movable consumer product mockup, a simulation subsystem having a display unit for presenting at least partially simulated content and a simulation processing unit for providing the simulated content, a tracking subsystem arranged for tracking at least the motion of the manually movable consumer product mockup with respect to a reference system, a data processing subsystem for receiving usage data. The simulation subsystem is arranged to simulate at least one property or feature of the envisaged manually movable consumer product and to present this property or feature as simulated content via the display unit.