EYEGLASS LENS AND EYEGLASS LENS DESIGN METHOD

Abstract: an eyeglass lens has a configuration including two optical faces on an object side and an eyeball side, at least one of which has a base surface configured to cause a luminous flux incident from the object side to exit to the eyeball side and converge to a position on a retina of an eyeball, and a plurality of defocus surfaces configured to cause a luminous flux incident from the object side to exit to the eyeball side and converge to a position further away from the object side than the position, wherein a power pb of the base surface and a defocus power ps of the defocus surfaces satisfy a relationship of −0.25 ps<pb<−ps.

Inventor(s): Hua QI, Shohei MATSUOKA

CPC Classification: G02C7/066 ({Shape, location or size of the viewing zones})

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