Shadowmask CRT Correcting Lens Design and Implementation

The polynomial surface modeling method for CRTcorrecting lens design is based on some special rules of mislanding,but it is not suitable to irregular mislanding because of probable divergence of the surface modeling algorithm.We apply "points and normals" surface modeling technology to construct Coons surface of correcting lens.New algorithm presented overcomes the defects of traditional method,and the effectiveness of the new approach has been validated.