Touch-sensitive device

A touch-sensitive device, comprising:

• a light source for emitting light,
• a touch-sensitive waveguide configured for guiding light from the light source towards a touch-sensitive surface of the touch-sensitive waveguide in such a way that an object disturbs at least a part of the guided light at a contact point where the object contacts the touch-sensitive surface,
• a detector array configured for detecting intensity distribution of light having propagated from the light source through the touch-sensitive waveguide for position encoding the contact point between the object and the touch-sensitive surface, and
• a first light redirecting member configured for redirecting light having propagated from the light source through the touch-sensitive waveguide and to the first light redirecting member towards the detector array, such that the redirection of light involves changing the direction of propagation in a plane parallel to the touch-sensitive surface, wherein
• at least a part of the light propagating towards a specific point of the detector array is prevented from being incident upon the specific point of the detector array when the object contacts the touch-sensitive surface at a corresponding specific contact point.