Light guide is with advancing optical coupling structure

The utility model relates to a light guide is with advancing optical coupling structure, including light guide body and LED light source, the light guide body is advancing the cavity that the light end has the indent and is used for the light coupling, the LED light source set up in the cavity and with light guide body fixed connection, the light when lighting the LED light source advances the optical coupling in the cavity of light guide body. The utility model discloses with LED light source and light guide ontology integration together, directly be embedded into the light guide coupled zone with the LED light source inside, light when shining the LED light source advances the optical coupling in the cavity of light guide body, light that the maximum LED of utilization light source sent is rational in infrastructure, thoroughly solves light leakage phenomenon, has improved the light efficiency utilization ratio. 本实用新型涉及种光导用进光耦合结构，包括光导本体和LED光源，所述光导本体在进光端具有内凹且用于光线耦合的腔体，LED光源设置在腔体内并与光导本体固定连接，点亮LED光源时的光线在光导本体的腔