Abstract: The present patent application is directed to a illuminating module. The illuminating module includes an LED and composite optical lens. The composite optical lens includes a condenser lens and a reflection mirror that forms from extension by two sides of the condenser lens. The condenser lens includes a convex base surface and a convex launch-out surface that corresponds to a base surface. A blind hole is formed between the convex base surface and the reflection mirror. The LED is capable of moving along a lens optical axial direction of the composite optical lens within the blind hole.