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Spectacle lens selection method and spectacle lens selection system
专利权人:
Osamu Wada
发明人:
Osamu Wada
申请号:
US13150733
公开号:
US08297752B2
申请日:
2011.06.01
申请国别(地区):
US
年份:
2012
代理人:
摘要:
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
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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