Polishing device for circuit board defect detection and defect detection device

The utility model discloses a lighting device for circuit board defect detection and a defect detection device.The lighting device comprises a mounting base, a plurality of UV light sources and a first filter, the UV light sources are used for providing UV light, and the UV light sources are arranged on the mounting base; the first filter plate is a transparent film-coated filter plate, and the first filter plate is matched with the objective lens, so that UV light is filtered through the first filter plate; the mounting base is also matched with the objective lens, so that the UV light emitted by the UV light source can irradiate the circuit board to be detected, and the defect detection equipment can perform defect detection under the UV light. According to the technical scheme provided by the utility model, the plurality of UV light sources are used for lighting the circuit board, the lighting is sufficient, and the detection system can detect the defects of the circuit board under the irradiation of UV li