= Multifocal diffractive lens
{wiki=Multifocal_diffractive_lens}
A multifocal diffractive lens is an optical device designed to provide multiple focal points, allowing it to focus light at different distances. This type of lens is mainly used in applications like eyeglasses, contact lenses, and intraocular lenses for cataract surgery. Here’s how it works: 1. **Diffractive Optics**: The lens incorporates microstructures on its surface that manipulate the light through diffraction.
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