Patent ID: 7532800

Claim:
A light guide unit comprising: a) a surface lighting light guide, b) a channel light guide and c) a distribution light guide; a) the surface lighting light guide having a light emitting major surface and at least one light receiving side surface; b) the channel light guide having a plurality of optical cores separated one another to form a linear or nonlinear fiber optic channel array, the channel array having a plurality of light entrance core surfaces and a plurality of light exit core surfaces to face the at least one light receiving side surface; c) the distribution light guide having a linear or nonlinear light guide having at least one light receiving portion and at least one distribution light guide surface disposed to face the light entrance core surfaces; and wherein each width of the optical cores increases in accordance with a distance from the at least one light receiving portion and/or each pitch between the optical cores decreases in accordance with a distance from the at least one light receiving portion.