Abstract: A device for detecting the location of an object within two or more at least partially overlapping sensing volumes of the device. The device is configured to illuminate the sensing volumes and generate a sensing signal individually for each sensing volume by sensing light modulated by any object in the sensing volume. Spatial encoding is applied to the sensing volumes. The device comprises a processor configured to determine the presence of an object in the sensing volumes based on the sensing signals generated for the sensing volumes and on the spatial encoding.

Abstract: A device for detecting the location of an object within two or more at least partially overlapping sensing volumes of the device. The device is configured to illuminate the sensing volumes and generate a sensing signal individually for each sensing volume by sensing light modulated by any object in the sensing volume. Spatial encoding is applied to the sensing volumes. The device comprises a processor configured to determine the presence of an object in the sensing volumes based on the sensing signals generated for the sensing volumes and on the spatial encoding.

Abstract: A device for measuring movement of a mobile element moving in at least one direction, includes: a light source adapted to emit a light beam; at least one optical member intercepting the light beam and attached to the mobile element to track its movement; pixel type sensors capturing the transmitted beam determined by the relative position of the optical member relative to the light source, the pixels being disposed so that at least some of them receive illumination that varies with the position of the mobile element as it moves; a comparator module comparing the values obtained from the pixels of the sensors with two distinct thresholds in order to assign some of them a logic value; a calculation module determining the position of the mobile element from the data from the comparator module.

Abstract: A device for measuring movement of a mobile element moving in at least one direction, includes: a light source adapted to emit a light beam; at least one optical member intercepting the light beam and attached to the mobile element to track its movement; pixel type sensors capturing the transmitted beam determined by the relative position of the optical member relative to the light source, the pixels being disposed so that at least some of them receive illumination that varies with the position of the mobile element as it moves; a comparator module comparing the values obtained from the pixels of the sensors with two distinct thresholds in order to assign some of them a logic value; a calculation module determining the position of the mobile element from the data from the comparator module.