Bernardus Franciscus Maria WANDERS,Walter Bernardus Johannes WOLTERINCK
申请号：
US14184791
公开号：
US20140172091A1
申请日:
2014.02.20
申请国别(地区):
US
年份:
2014
代理人:
摘要：
An ophthalmic lens comprising a main lens part, a recessed part, an optical centre, and an optical axis through the optical centre, the main lens part having at least one boundary with the recessed part, the main lens part having an optical power of between about −20 to about +35 dioptre, the recessed part positioned at a distance of less than 2 mm from the optical centre and including a near part having a relative dioptre of about +1.0 to about +5.0 with respect to the optical power of the main lens part, the boundary or boundaries of the recessed lens part with the main lens part form a blending part or blending parts, are shaped to refract light away from the optical axis, and have a curvature resulting in a loss of light, within a circle with a diameter of 4 mm around the optical centre, of less than about 15%.
