Patent ID: 7226200

Claim:
A light guiding device, comprising: a single light guide plate comprising a light incident surface, a top light emitting surface, and an opposite bottom light emitting surface; and a reflection member comprising a top reflection surface and an opposite bottom reflection surface; wherein the single light guide plate has a plate cavity formed therein for receiving the reflection member, the top reflection surface of the reflection member faces toward the top light emitting surface of the light guide plate, and the bottom reflection surface of the reflection member faces toward the bottom light emitting surface of the light guide plate; and when light beams enter the light guide plate via the light incidence surface, some of the light beams are reflected by the top reflection surface of the reflection member and emit from the top light emitting surface of the light guide plate, and other of the light beams are reflected by the bottom reflection surface of the reflection member and emit from the bottom light emitting surface of the light guide plate.