SENSOR DEVICE Russian patent published in 2014 - IPC G06F3/42 

FIELD: instrumentation.

SUBSTANCE: invention relates to an optical sensor device and to the method to determine both a position of an object contacting with the sensor device and the change of the said position. The sensor device comprises a light radiation source, a sensor beam waveguide, a detector matrix and the first element for light radiation redirection; the first redirection element is made with the possibility of changing at least part of the sent light radiation between that part where distortions are introduced and that part where distortion introduction is prevented, when an object is contacting with the sensor surface in respective certain point of contact, so delivery of at least part of light radiation passing in the direction of the certain point located on the detector matrix, to the certain point is prevented.

EFFECT: provision for improved efficiency of coding a position of an object contacting with sensor surface, basing on the change of intensity of light radiation reflected from the contact point.

37 cl, 38 dwg