Patent ID: 8305699

Claim:
A wafer-level lens module comprising: a plurality of wafer-scale lenses stacked with fixed distances therebetween, wherein the plurality of wafer-scale lenses comprises an effective lens having a profile which satisfies a corrected optimized aspheric function, such that a profile of a center region of the effective lens is optimized for an infinity-focused image and a profile of an edge region of the effective lens is optimized for a macro-focused image wherein the effective lens comprises: a first portion having a profile satisfying an optimized aspheric function, the first portion disposed at a radial center of the effective lens, a second portion having a profile satisfying the optimized aspheric function with a negative error correction, the second portion radially surrounding the first portion, and a third portion having a profile satisfying the optimized aspheric function with a positive error correction, the third portion radially surrounding the second portion.