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Ophthalmic lens with multiple phase plates
专利权人:
Alan J Lang;Mark H Bandhauer
发明人:
Mark H Bandhauer,Alan J Lang
申请号:
US13448124
公开号:
US08506075B2
申请日:
2012.04.16
申请国别(地区):
US
年份:
2013
代理人:
摘要:
An ophthalmic lens for providing a plurality of foci includes an optic having an anterior surface, a posterior surface, and an optical axis. The ophthalmic lens has a first region and a second region. The first region has a first refractive optical power and includes a first base curvature having a finite radius of curvature and a first phase plate having at least one diffraction order with a diffractive optical power. The first region is configured for forming a first focus and a second focus. The second region has a second refractive optical power and includes a second base curvature having a finite second radius of curvature that is different from the first radius of curvature and a second phase plate having at least one diffraction order with a diffractive optical power.
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