Astrophysics

Spiral scratches on contact lenses can turn them into multifocals

Inscribing a spiral in the centre of a contact lens seems to create optical vortices that interact so that the lens provides a clear image of objects at all distances

SINSIN
Feb 8, 2024 - 21:00
 0  3
Spiral scratches on contact lenses can turn them into multifocals
Inscribing a spiral in the centre of a contact lens seems to create optical vortices that interact so that the lens provides a clear image of objects at all distances
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