Smooth surface defect detection device

The utility model discloses a detection device for smooth surface defects. The device comprises a support, a sample holder, an upper camera, a lower camera and a light source, the sample holder, the upper camera, the lower camera and the light source are installed on the support, the upper camera is located above the sample holder, the lower camera is located below the sample holder, an axial hollow supporting ring is arranged on the sample holder, and the light source irradiates a to-be-measured element on the sample holder to form a bright field or a local dark field. The device is suitablefor detecting spherical, aspheric, transparent and non-transparent smooth surface defects, and has good adaptability; the detection device is simple in structure, low in requirement for pixels of thecamera, low in cost and high in detection precision, further, the upper surface and the lower surface of the to-be-detected element can be detected at the same time, and the detection efficiency is high. 本实用新型公开了一种光滑表面缺陷的检测装置，