The utility model discloses a combined
light source for detection, which comprises a
first light-emitting component, a second light-emitting component and a third light-emitting component which are sequentially arranged along the lighting direction, the second light-emitting component is annular, the
first light-emitting component is connected with the end face of one end of the second light-emitting component, and the
first light-emitting component comprises a plurality of first light-emitting bodies. The first light-emitting bodies are arranged on the outer side of the second light-emitting
assembly at intervals in the circumferential direction of the second light-emitting
assembly, the third light-emitting
assembly is connected with the end face, back to the first light-emitting assembly, of the second light-emitting assembly, and the light emitting end of the third light-emitting assembly is located on the inner side of the second light-emitting assembly. Through the arrangement, under the illumination of the detection combined
light source, the definition of the surface of a detected product can be effectively improved, the surface information of the product can be effectively and clearly reflected, the imaging reliability of the detected product can be effectively improved, the surface imaging error of the detected product is further remarkably reduced, and the product quality is improved. Therefore, the accuracy of
software image analysis after image capturing is improved.