公开(公告)号：US4095878A

公开(公告)日：1978-06-20

申请号：US743857

申请日：1976-11-22

申请人： Peter Fanti

发明人： Peter Fanti

IPC分类号： G02C7/04 ,  G02B5/23

CPC分类号： G02C7/04 ,  G02C7/041 ,  G02C7/048

摘要： A soft contact lens for use on the human eye formed from a soft material like silicon or a hydrophilic material. The lens has a generally spherical concave inner surface which conforms to the cornea and a generally convex outer surface. To maintain the correct orientation of the lens when placed on the eye it is provided with a flattened region along a portion of its periphery.

摘要翻译： 用于由诸如硅或亲水材料的软质材料形成的人眼上的软性隐形眼镜。 透镜具有与角膜和大致凸起的外表面一致的大致球形的凹面内表面。 为了在放置在眼睛上时保持透镜的正确取向，沿着其周边的一部分设置有平坦的区域。

公开(公告)号：US5069542A

公开(公告)日：1991-12-03

申请号：US186674

申请日：1988-04-21

申请人： Peter Hofer ,  Ulrich Muller ,  Manfred Barenz ,  Horst Schafer ,  Wolfgang Muller-Lierheim

发明人： Peter Hofer ,  Ulrich Muller ,  Manfred Barenz ,  Horst Schafer ,  Wolfgang Muller-Lierheim

IPC分类号： G02C7/04

CPC分类号： G02C7/04

摘要： A contact lens has an elliptical inside surface with a numerical eccentricity of 0.2 to 0.5 and a zenith radius of curvature of 8.0 to 8.4 mm. The inside surface preferably has a peripheral, circularly cross sectioned bevelled zone. As a soft contact lens, it has these dimensions when fully hydrated and preferably consists of a copolymer comprising of 50% to 90% hydroxyethyl-methacrylate (HEMA) by weight, 2% to 20% one or more unsaturated carboxylic acids, 2% to 20% one or more base monomers, 5% to 25% aliphatic acrylate or methacrylate, and 0.1% to 1% of a dialkylene-glycol-dimethacrylate cross-linker.