Abstract: A user interface device including a non-flexible part; at least one flexible part coupled to the non-flexible part; and at least one sensor, for detecting bending of a respective flexible part with respect to the non-flexible part, and for producing a command in response to sensing bending of the respective flexible part.

Abstract: A method of providing a user interface for controlling a system (1;27) includes observing a presence of a body or body part of a user in a certain environment of a device (6,14-17;30). At least a perceptible part (28,34) of the user interface is made available to the user in association with a particular functionality for interacting with the system (1;27) controlled by the user interface in dependence on a rate of displacement of the body or body part of the user observed in the certain environment.

Abstract: A method of providing a user interface for controlling a system includes observing a presence of a body or body part of a user in a certain environment of a device. At least a perceptible part of the user interface is made available to the user in association with a particular functionality for interacting with the system controlled by the user interface in dependence on a rate of displacement of the body or body part of the user observed in the certain environment.

Abstract: The invention provides a lighting device comprising a housing. The housing comprises visible-light sources (10) arranged to generate visible light (11), UV-lightsources (12) arranged to generate UV-light (13), a light exit window (14) positioned to allow transmission of the visible light (11), a photochromic layer (16) positioned upstream of the light exit window (14) and downstream of the visible light sources (10), the photochromic layer (16) comprising at least one area with UV-photochromic material (15), the UV-photochromic material (15) having a first color state and a second color state, and a control unit (40) connected to the UV-light sources (12) for controlling the UV-light sources (12), wherein the UV-light sources are arranged to illuminate the photochromic layer (16). The invention makes it possible to obtain dynamic light effects.

Abstract: A user interface device (1) comprises a non-flexible part (3); at least one flexible part (5) coupled to the non-flexible part (3); and at least one sensor, for detecting bending of a respective flexible part (5) with respect to the non-flexible part (3), and for producing a command in response to sensing bending of the respective flexible part (5).

Abstract: The invention provides a lighting device comprising a housing. The housing comprises visible-light sources (10) arranged to generate visible light (11), UV-lightsources (12) arranged to generate UV-light (13), a light exit window (14) positioned to allow transmission of the visible light (11), a photochromic layer (16) positioned upstream of the light exit window (14) and downstream of the visible light sources (10), the photochromic layer (16) comprising at least one area with UV-photochromic material (15), the UV-photochromic material (15) having a first color state and a second color state, and a control unit (40) connected to the UV-light sources (12) for controlling the UV-light sources (12), wherein the UV-light sources are arranged to illuminate the photochromic layer (16). The invention makes it possible to obtain dynamic light effects.

Abstract: A method of providing a user interface for controlling a system (1;27) includes observing a presence of a body or body part of a user in a certain environment of a device (6,14-17;30). At least a perceptible part (28,34) of the user interface is made available to the user in association with a particular functionality for interacting with the system (1;27) controlled by the user interface in dependence on a rate of displacement of the body or body part of the user observed in the certain environment.