| 摘要 |
PROBLEM TO BE SOLVED: To provide a light source module capable of improving a luminous efficiency.SOLUTION: A light source module of this invention comprises a circuit board, an emitter, a light guide plate, a reflection piece, a diffuser panel and a frame. The emitter is electrically connected to the circuit board, one end of the light guide plate is positioned adjacent to the emitter, the reflection piece is positioned adjacent to one side of the light guide plate, the diffusion plate is positioned adjacent to the other side of the light guide plate, the flame fixes the circuit board, emitter, light guide plate, reflection piece and diffusion plate. Upon electrical energization of the emitter, light is emitted, light beam of the emitter passes through the light guide plate and the reflection piece, the light beam is diffused by the diffusion plate. The light guide plate is provided with an incident surface. The emitter is provided with an emission surface. A holding angle is formed between the light-emitting surface of the emitter and the incident surface of the light guide plate, a light beam generated at the center of the emitter acts on the light guide plate and the reflection piece and outputted from the light guide plate, thereby it is possible to improve a light emitting efficiency of the light source module.SELECTED DRAWING: Figure 5 |
