Indoor optical fiber coupling LED auxiliary illumination system and manufacturing method thereof

The invention discloses an indoor optical fiber coupling LED auxiliary illumination system and a manufacturing method thereof. The system comprises an LED light source, a cooling fin and an illumination optical fiber. The LED light source is connected to the cooling fin. The incidence end and the exit end of the illumination optical fiber are conical. Light emitted by the LED light source is coupled in the illumination optical fiber from the incidence end to be transmitted and is emitted from the exit end. By conducting fused biconical taper processing on the incidence end of the illumination optical fiber, the divergent light rays emitted by an LED are more effectively coupled with the optical fiber, and the light energy utilization rate is increased; by conducting fused biconical taper processing on the exit end of the illumination optical fiber, the angle of light rays emitted by the optical fiber is increased, the illumination range is widened, and the system further meets actual requirements.