#$%^&*AU2011226972B220120628.pdf#####C NRPortbI DCC KMH 3903501_ DOC - 29/9/11 ABSTRACT An ophthalmic lens (100) for providing a plurality of foci has an optic (102) comprising an anterior surface (104), a posterior surface (106), and an optical axis (108). 5 The optic (102) has a first region (110) and a second region (120). The first region (110) has a refractive optical power and comprises a multifocal phase plate (112) for forming a first focus and a second focus. The second region (120) has a refractive optical power and comprises a monofocal phase plate (122) for forming a third focus. The multifocal phase plate (112) and the monofocal phase plate (122) may be disposed on first and second base 10 curvatures, respectively, that may have different radii of curvature. The ophthalmic lens (100) may also have an intermediate phase plate (220) located between the multifocal phase plate (112) and the monofocal phase plate (122), the intermediate phase plate (220) comprising a third plurality (223) of echelettes (230) disposed on a third base curvature having a third radius of curvature. 15 Fig. 10
