摘要 |
The present invention relates to an optical touch-sensitive device and a method of determining a position and determining a position change of an object contacting an optical touch sensitive device. In particular, the present invention relates to an optical touch pad and a method of determining a position and determining a position change of an object contacting an optical touch pad. A touch-sensitive device, according to the present invention may comprise a light source, a touch- sensitive waveguide, a detector array, and a first light redirecting member, 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 an object contacts a touch-sensitive surface of the touch-sensitive waveguide at a corresponding specific contact point. |
申请人 |
DANMARKS TEKNISKE UNIVERSITET;JAKOBSEN, MICHAEL, LINDE;HANSON, VAGN, STEEN, GRUENER;PEDERSEN, HENRIK, CHRESTEN |
发明人 |
JAKOBSEN, MICHAEL, LINDE;HANSON, VAGN, STEEN, GRUENER;PEDERSEN, HENRIK, CHRESTEN |