Lighting system and method for on-line detection of ceramic brick and ceramic tile defect

The invention discloses a lighting system and method for on-line detection of ceramic brick and ceramic tile defect. The lighting system comprises a detachable movable lighting box body framework, a light source system and a combination enclosed diffusion plate, wherein the light source system is used for generating a uniform optical field so as to facilitate shooting of an industrial camera, thecombination enclosed diffusion plate is used for shading an external light ray and performing scattering diffusion processing on a light ray given out from the light source system. By the combinationenclosed panel and a heat-resistant lightproof curtain, the external environmental light ray is isolated to a great extent, so that a ceramic brick and ceramic tile surface has no relatively high reflection, the uniform light field is generated in the light source box, the coverage of relatively high reflection light on ceramic brick and ceramic tile surface defect information is possibly prevented, the imaging accuracy of