Bernardus Franciscus Maria Wanders;Walter Bernardus Johannes Wolterinck
发明人:
Bernardus Franciscus Maria Wanders,Walter Bernardus Johannes Wolterinck
申请号：
US13201800
公开号：
US08696746B2
申请日:
2010.02.17
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The invention relates to an ophthalmic lens comprising a main lens part, a recessed part, an optical center, and an optical axis through said optical center, said main lens part having at least one boundary with said recessed part, said main lens part having an optical power of between about −20 to about +35 dioptre, said recessed part positioned at a distance of less than 2 mm from said optical center and comprising a near part having a relative dioptre of about +1.0 to about +5.0 with respect to the optical power of said main lens part, said boundary or boundaries of said recessed lens part with said main lens part form a blending part or blending parts, are shaped to refract light away from said optical axis, and have a curvature resulting in a loss of light, within a circle with a diameter of 4 mm around said optical center, of less than about 15%.
