Patent ID: 9297518
Filing Date: 2016-03-29
CPC Classification: F21V,G02B,G02F

Claim Text:
1. A backlight module comprising: a chamber having a bottom surface and a side surface; a bottom reflector disposed inside the chamber and located on the bottom surface; a plurality of light sources disposed inside the chamber and located above the bottom reflector, the light sources being adjacent to the side surface, each of the light sources being suitable for providing light; and a plurality of lenses disposed on a transmission path of the light, each of the lenses having a back surface, a cavity on the back surface, and a light-emitting surface, the cavity having a light-incident surface, each of the light sources being arranged corresponding to one of the lenses and adjacent to the cavity, wherein the light is divided into a plurality of light beams with different propagating directions after the light passes the corresponding lens, and all the light beams irradiate the bottom reflector.