Patent ID: 9239471
Filing Date: 2016-01-19
CPC Classification: A61F,B82Y,G02B,G02C,Y10S

Claim Text:
1. An imaging lens structure comprising: a lens region defining an effective aperture of the lens structure, said lens region comprising an arrangement of lens zones distributed within the lens region and comprising zones of at least two different optical functions differently affecting light passing therethrough, said arrangement of lens zones being formed by a surface relief on an outer surface of the lens region, such that the lens zones of the at least two different optical functions are arranged in an interlaced fashion along said lens region and adjacent lens zones of the different optical functions are spaced apart from one another along an optical axis of the lens structure a distance larger than a coherence length of white light illumination; and a phase coder comprising multiple phase coding patterns associated with the lens zones of the at least two different optical functions.