Small-angle surface-mounted COB light source with Fresnel lens

The utility model relates to the technical field of COB light sources, in particular to a small-angle surface-mounted COB light source with a Fresnel lens. According to the technical scheme, the small-angle surface-mounted COB light source with the Fresnel lens comprises a bottom bonding pad, a ceramic substrate, the Fresnel lens and a box dam, the bottom bonding pad is arranged at the bottom end of the ceramic substrate, the box dam is arranged on the upper surface of the ceramic substrate, a step is arranged on the box dam, a circuit layer is installed on the box dam and located in the step, and the Fresnel lens is arranged on the circuit layer. An LED light-emitting chip is installed on the circuit layer, a Fresnel lens is installed at the position, located on the step, of the box dam, and the Fresnel lens sinks the surface with the curvature through a layered structure. Miniaturization of a light source can be achieved through the lens of the Fresnel structure, the optimization dimension of a light patter