发明申请
US20060139571A1 Ophthalmic lens with progressive addition of power and prism 有权
具有逐渐增加功率和棱镜的眼科镜片

Ophthalmic lens with progressive addition of power and prism
摘要:
The lens presents horizontal prismatic refractive power that varies progressively along the main progression meridian (MM′) with the addition of horizontal prismatic power being greater than 2 prismatic diopters in absolute value, this addition of horizontal prismatic power being defined by the difference between the horizontal prismatic refractive power at the reference point (L) of the far vision zone and the horizontal prismatic refractive power at the projection point (P′) of the reference point (P) of the near vision zone (VP) on the vertical line passing through the reference point (L) of the far vision zone.
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