Bifocal multiorder diffractive lenses for vision correction

摘要

A bifocal multiorder diffractive lens 10 comprising a lens body 12 shaped to refract light to provide distance vision correction, and one or more multiorder diffractive structures 14 16a 16 b for adding power to the lens 10 for near vision correction, wherein one or more the diffractive structures 14 16a 16b is in accordance with wavelengths for both photopic and scotopic vision. (62) Divided Out of 544127