Patent ID: 7129467

Claim:
A light sensor comprising: a substrate comprising a base made from a semi-conductive material and a layer of an electrically non-conductive material on a surface of said base; at least one alignment electrode on said layer; a plurality of carbon nanotube (CNT)-based conductors on said layer and distributed in a spaced apart fashion about a periphery of said at least one alignment electrode with each of said plurality of CNT-based conductors coupled on one end thereof to said at least one alignment electrode and extending away from said at least one alignment electrode to terminate at a second end thereof, each of said plurality of CNT-based conductors comprising at least one CNT; at least one gate electrode on said layer and spaced apart from said second end of each of said plurality of CNT-based conductors; and means, coupled to said at least one alignment electrode and said at least one gate electrode, for detecting a quantity indicative of electron transfer along said plurality of CNT-based conductors, wherein said electron transfer is indicative of an amount of light impinging on said plurality of CNT-based conductors.