Patent ID: 8384682
Filing Date: 2013-02-26
Classification: G06F

Abstract:
1. An optical interactive panel, comprising: a cladding layer, extended as an interactive plane, having a first index of refraction; a first waveguide array, having a plurality of first waveguide channels extending at a first direction and distributed in the cladding layer, wherein the first waveguide channels have a second index of refraction greater than the first index of refraction; a second waveguide array, having a plurality of second waveguide channels, extending at a second direction different from the first direction and distributed in the cladding layer, wherein when a light spot transversely transmits the first waveguide array and the second waveguide array, the first waveguide array and the second waveguide array receive the light spot and respectively guide a portion of the light spot as a first set of light signals and a second set of light signals; a first set of image sensor, detecting the first set of light signals from the first waveguide channels to determine a first-direction location; and a second set of image sensor, detecting the second set of light signals from the second waveguide channels to determine a second-direction location.