The glass-defect detection has become one of the important technologies to improve glass quality.The method not only can detect the defects

but also transmit the information of defects to the other processing

then improved.In order to obtain high-quality glass and the accurate information of defects

a new detect method based on the moiré fringes is proposed.The method can not only detect small defects

and classify the defects

but also effectively detect glass optical aberrations.