Patent ID: 8692803

Claim:
An optical touch apparatus, comprising: a first light source emitting module, for sequentially emitting a first light source and a second light source, wherein a plurality of scanning lights of the second light source is uniformly distributed above a surface of the optical touch apparatus; a first optical module, set at a first side on the surface, for receiving the first light source and uniformly emitting a plurality of first direction lights; a first light sensing module, set at a second side opposite to the first side on the surface, for receiving the plurality of first direction lights and the plurality of scanning lights respectively, and generating a first sensing result and a second sensing result based on the condition of receiving the plurality of first direction lights and the plurality of scanning lights respectively, wherein the first sensing result and the second sensing result are related to whether the plurality of first direction lights and the plurality of scanning lights are blocked by at least one object above the surface respectively; and a processing module, coupled to the first light sensing module, for determining at least one touch point location corresponding to the at least one object on the surface based on the first sensing result and the second sensing result.