Spectacle lens selection method and spectacle lens selection system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 30, 2012
Grant Date -
Dec 8, 2011
app pub date -
Jun 1, 2011
filing date -
Jun 2, 2010
priority date (Note) -
Expired
status (Latency Note)
Importance
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Abstract
An eyeball infraduction value Indih is measured, and then ΔE is determined from an equation ΔE=Indih−(Fh+SPh+Nh) based on the eyeball infraduction value Indih, a distance portion eyepoint height Fh, a progressive corridor length SPh, and a reading portion eyepoint height Nh, and Oh is determined from an equation of Oh=Bh−(Fh+SPh+Nh+ΔE+Uh) based on the ΔE, a lens portion height Bh, the distance portion eyepoint height Fh, the progressive corridor length SPh, the reading portion eyepoint height Nh, and a lower frame height Uh. A spectacle lens that satisfies conditions of 0 mm≦ΔE≦2 mm and 0 mm
First Claim
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