Fig. 2

Investigation of refractive SVSLs with prescription − 4 dpt SPH and 0 dpt AST made from a standard SVSL polymer with refractive index 1.59 and Abbe number 41.11. a-c are the SPH error, AST error and CE of a spherical lens. ASPHs can be used to reduce AST error or SPH error as shown in d-f and g-i, respectively. CE remains almost unaffected by the ASPH