Patent ID: 8628014

Claim:
An article comprising an instruction symbol identifier system comprising: a. a digital image capturing feature comprising; i. an aperture for receiving light; ii. an optical lens configured within said aperture; iii. a light field sensor comprising; 1. a micro-lens array comprising a plurality of micro-lenses; 2. a photosensor comprising a plurality of pixels; wherein said micro-lens array is configured closer to said aperture than said photosensor by a light field gap, wherein said light field sensor is positioned between one and two focal lengths from said aperture, wherein said light field gap is no more than two focal lengths of the micro-lens array, and wherein said light field sensor captures light intensity and light direction; b. a computing device, coupled to said digital image capturing feature, comprising; i. a computer program, wherein said computer program of the instruction symbol identifier system digitally focuses said digital image using said light intensity and light direction in a ray-tracing technique to identify an instruction symbol and correlate said identified instruction symbol with corresponding information.