EQUIPMENT FOR MANUFACTURE OF OPTICAL CORRECTING ELEMENTS Russian patent published in 1995 - IPC

FIELD: optical instrumentation. SUBSTANCE: equipment for manufacture of correcting elements with off-the shelf optical part is produced in the form of mould with separable dies and punch having central and reference sections of specified shape. Microrelief is formed on central section of mould and/or punch with value of phase function ϕ(u,v) equal to (2πm)j on boundary of each zone having variable height determined by mathematical expression including passing function over eikonal found depending on vision defect, where u, v are orthogonal coordinates of phase microrelief; m=1,2,3; i is number of zone of phase microrelief. EFFECT: facilitated manufacture of correcting elements. 3 dwg