Patent ID: 9547118
Date: 2017-01-17
CPC Classifications: G02B

Claim:
1. A light guide panel, comprising: a panel body comprising a plurality of incident edges extending around the periphery thereof and a strong light region defined in a front, central surface thereorf; and a light guide structure comprising a plurality of first light-guiding grooves located in said front surface of said panel body and transversely extended through two opposite lateral sides of said front surface of said panel body and longitudinally spaced from one another at a predetermined interval, said first light-guiding grooves being curved grooves, each said first light-guiding groove comprising a first peak value area and two first valley value areas at two opposite ends of said first peak value area, each said first peak value area curved in direction from said incident edges of said panel body toward said strong light region, each said first peak value area facing toward said strong light region, the gap between said first peak value areas of each two adjacent said first light-guiding grooves being gradually reduced in direction from said incident edges toward said strong light region.