Patent ID: 8277061
Filing Date: 2012-10-02
Classification: G02B

Abstract:
1. A light guiding mechanism for portable electronic device comprising: a cover including a light transmitting region; a light guiding module including a light guide plate having a first diagonal line and a second diagonal line, the light guide plate defining a first through hole; the light guide plate including a light reflecting region around the first through hole, the light reflecting region disposed beneath the light transmitting region of the cover; the light reflecting region including a plurality of protrusions symmetrically positioned relative to the first diagonal line and the second diagonal line; adjacent protrusions having a space therebetween, the size of the space uniformly increasing with increasing distance from the first through hole; and four light sources correspondingly adjacent to four sides of the light guide plate, light emitted from the light sources being repeatedly reflected by the protrusions and then passing the light transmitting region of the cover.