Patent ID: 8403539
Filing Date: 2013-03-26
Classification: G02B,G06F

Abstract:
1. A light guide configured for positioning proximate to a light emitter in an electronic device; said light guide comprising: a first prism having a first position in relation to said light emitter; said first prism having a first boundary defined by a first length and a first angle in relation to a plane parallel to a surface of said light emitter; and, a second prism having a second position in relation to said light emitter; said second prism having a second boundary defined by a second length and a second angle in relation to said plane; and a plurality of additional prisms; each of said prisms being substantially square in shape, arranged in a grid; each of said additional prisms having surfaces defined by additional lengths and additional angles in relation to said plane, each decreasing in size according to a distance from said light emitter; wherein said first position is closer to said light emitter than said second position and said second angle is less than said first angle.