Spectacle Lens and Method for Designing the Same
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United States of America Patent
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Issued Date -
Sep 1, 2011
app pub date -
Feb 24, 2011
filing date -
Mar 1, 2010
priority date (Note) -
Abandoned
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Abstract
A spectacle lens includes: a near region corresponding to near vision, wherein a spherical equivalent power at a point located on a principal line of fixation in the near region is larger than the spherical equivalent power in a region away from the point toward the nose, in a horizontal direction with reference to a spectacle wearer but smaller than the spherical equivalent power in a region away from the point toward the ear in the horizontal direction.
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