Abstract: A controlling device (1) for controlling lighting parameters is connected to a number of lamps (70). The controlling device (1) comprises a controlling member (20), which is placed on a contact surface (11) by a user. Lighting parameters of each lamp (70) are determined on the basis of the position of the controlling member (20) on the contact surface (11), so that the user is able to control the lighting parameters simply by controlling said position. The controlling device (1) comprises sensing means for sensing the position of the controlling member (20) on the contact surface (11) with respect to a reference system. Information regarding said position is contained by an input signal which is transmitted from the sensing means to a processor for generating an output signal on the basis of the input signal and an algorithm laid down in said processor.

Abstract: The invention describes relates to the on-line analysis of a video signal that is presented to the user, typically on a screen (110). This analysis results in an adaptation of the lighting. One or more characteristics of the signal are filtered out and translated into lighting settings of one or more light elements (102, 104, 106, 108), which in turn can contain one or more light sources.

Abstract: Viewing system comprising display means (3) and an imaging system (7), The display means (3) and the imaging system (7) are arranged to communicate with each other. The display means (3) are arranged to display an image based on signals received from the imaging system (7). The spatial orientation of the display means (3) is adjustable and the imaging system (7) comprises orientation adjusting means (8) arranged to adjust the viewing orientation of the imaging system (7). The viewing system further comprises sensor means (5) for detecting adjustments in the orientation of the display means (3). The sensor means (5) are also arranged to communicate with the orientation adjustment means (8). The orientation adjusting means (8) are arranged to adjust the viewing orientation of the imaging system (7) based on signals received from the sensor means (5).