Fabrication and testing of convex conic aspheric surface

Based on the third-order aberration theory and paraxial formula, the null test theory is derived. And after using the ZEMAX software to optimize the optical path, a more simple and convenience testing technology is discussed with a diameter of 60 mm convex paraboloid lens. Compared with traditional testing method, it doesn´t need expensive testing equipment. The practice shows that this method not only promotes work efficiency but also reduces the cost of test, at the same time, the PV of parabolic surface of the lens reaches λ/5 after fulfillment.