| US 7,455,404 B2 | ||
| Ophthalmic lens with multiple phase plates | ||
| Mark H. Bandhauer, Orange, Calif. (US); and Alan J. Lang, Long Beach, Calif. (US) | ||
| Assigned to Advanced Medical Optics, Inc., Santa Ana, Calif. (US) | ||
| Filed on Oct. 25, 2005, as Appl. No. 11/259,534. | ||
| Prior Publication US 2006/0098162 A1, May 11, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G02C 7/06 (2006.01); G02B 27/44 (2006.01); G02B 5/18 (2006.01) | ||
| U.S. Cl. 351—168 [351/171; 351/172; 359/565; 359/571] | 33 Claims |
| 1. An ophthalmic lens, comprising:
an optic having an anterior surface, a posterior surface, and an optical axis;
a first region having a first refractive optical power and comprising (1) a first base curvature having a finite first radius
of curvature and (2) a multifocal phase plate having a first diffraction order with a first diffractive optical power, the
first region configured for forming a first focus and a second focus; and
a second region having a second refractive optical power and comprising (1) a second base curvature having a finite second
radius of curvature different from the first radius of curvature and (2) a monofocal phase plate having a first diffraction
order with the second diffractive optical power, the second region configured for forming a third focus.
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