Touch-sensitive sensor device for sensing a position of an object touch

A slide controller device for controlling an apparatus, comprising:

• a touch-sensitive sensor device configured to sense a position of an object touch on the sensor device, comprising:
• a housing having a ceiling,
• a first distance sensor and a second distance sensor disposed spaced apart from each other in the housing,
• a light-reflective surface disposed spaced apart from the first and second distance sensor,
• a processing circuit configured to determine the position of the object touch on the ceiling by evaluating a detected first distance variation between the first distance sensor and the light-reflective surface caused by the object touch, and a detected second distance variation between the second distance sensor and the light-reflective surface caused by the object touch, wherein the detected first distance variation is based on a measurement of the first distance sensor and the detected second distance variation is based on a measurement of the second distance sensor,
• wherein the slide controller device has an outer surface, said outer surface comprising the ceiling of the touch-sensitive sensor device, or being mechanically coupled to the ceiling of the touch-sensitive sensor device so that a distance between the light-reflective surface and the first and second distance sensor is changed, while applying a force onto the outer surface of the controller device.