SPECTACLE LENSES - HOYA CORP

Title:

SPECTACLE LENSES

Document Type and Number:

WIPO Patent Application WO/2014/097851

Kind Code:

A1

Abstract:

Provided is a pair of spectacle lenses which are provided with: first refraction parts having a first refractive power; second refraction parts having a second refractive power greater than the first refractive power; and progressive refraction parts having a refractive power that progressively changes from the first refraction parts to the second refraction parts. The left and right spectacle lenses each have a different first refractive power. When a wearer views an object through the spectacle lenses, when left and right visual-axis directions are shifted depending on the different left and right first refractive powers, the lengths of the left and right progressive refraction parts, and the change rates of the degrees of addition of the left and right progressive refraction parts differ from each other in accordance with the shift in the left and right visual-axis directions, such that the difference in the effect of addition respectively and substantially acting upon left and right eyes of the wearer is suppressed along main fixation axes from the first refraction parts to the second refraction parts.

Inventors:

KOZU KAZUMA (JP)

Application Number:

PCT/JP2013/082088

Publication Date:

June 26, 2014

Filing Date:

November 28, 2013

Export Citation:

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Assignee:

HOYA CORP (JP)

International Classes:

G02C7/02; G02C7/06

Domestic Patent References:

WO2009072528A1

2009-06-11

Foreign References:

JP2012215639A	2012-11-08
JP2012173596A	2012-09-10
JP2006350381A	2006-12-28
JP2013171134A	2013-09-02
JP2011203705A	2011-10-13
US8162478B2	2012-04-24

Other References: