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Hybrid diffractive–refractive achromatic spectacle lenses
Author(s) -
Charman W. N.
Publication year - 1994
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1994.tb00130.x
Subject(s) - achromatic lens , optics , lens (geology) , chromatic aberration , chromatic scale , physics , optical power , refraction , power (physics) , simple lens , spectacle , materials science , focal length , economics , market economy , laser , quantum mechanics
The possible utility of high‐power hybrid achromatic spectacle lenses, each consisting of a contact combination of refractive and diffractive components, is considered. It is shown that such a combination can, in principle, minimize blur due to transverse chromatic aberration in high‐power prescriptions such as those for uphakes and high myopes. The combination has essentially the same thickness and weight as a conventional singlet lens. Some practical problems relating to hybrid designs are discussed.