METHOD OF DESIGNING PHYSICAL LENS FROM DEPTH OF FOCUS PROPERTY GENERATING CLEAR IMAGE REGARDLESS OF DISTANCE TO AN OBJECT AND AN AXIALLY SYMMETRICAL LENS HAVING DEPTH OF FOCUS DESIGNED USING THE SAME

摘要

PURPOSE: A method of designing physical lens from depth of focus property and an axially symmetrical lens having depth of focus designed using the same are provided to offer superb symmetrical property, denomination of point spread function, continuity of lens surface, and easiness of design.;CONSTITUTION: A focus curve of the EDOF(Extended Depth Of Focus) lens is classified into a plurality of sections(S10). A first lens layers of the EDOF lens implements the focusing on both side end points of the focus curve(S20). A second lens layers of the EDOF lens implements focusing in the focus curve(S30). A phase function of the EDOF lens is calculated(S40).;COPYRIGHT KIPO 2010