Abstract: A controllable arrangement which can be controlled by contactless sensing of a body part and/or object arranged on it and in which authentication of a user takes place by of a body part is characterized in that the arrangement can be controlled by at least a part of a limb and the user can be authenticated by at least of a limb.

Abstract: A person is authenticated by hand recognition carried out based on scanning data obtained for a first position and for a transition into a second position. Scanning data obtained in the second position may be used also.

Abstract: An arrangement, a method and a computer program for registering a hand on an arm, at least partially record an image of the hand and the arm. The arrangement has a searching unit to finding a part of the image with a high ratio of content to outer sides.

Abstract: A viewing angle measuring device for automotive vehicles. The measuring device includes an elliptical template representing a so-called visual ellipse. The template is arranged in the vehicle in a prescribed position with respect to a driver's seat regarding a center position and an axial inclination. A measuring beam projector may be guided with its optical axis and/or with a measuring beam tangentially along a governing curve of the elliptical template. A goniometer, continuously indicating the viewing angle, is connected to the measuring beam projector to determine the beam direction with respect to a reference plane as a measure of the viewing angle.