发明名称 Prosthetic aspheric spectacle lens for aphakia
摘要 A prosthetic, aspheric spectacle lens for aphakic patients comprising a posterior surface and an anterior surface having a spherically curved zone and an aspheric peripheral zone surrounding the central zone. The aspheric peripheral zone has an optimized amount of radially decreasing diopter power. An alternative embodiment has a zone intermediate of the central zone and the peripheral zone. The rate of radially decreasing diopter power change accelerates as the outer circumferential edge of the lens is approached.
申请公布号 US4185897(A) 申请公布日期 1980.01.29
申请号 US19780974250 申请日期 1978.12.29
申请人 FRIEDER, PHILIP M 发明人 FRIEDER, PHILIP M
分类号 G02B3/04;G02C7/02;(IPC1-7):G02B3/04 主分类号 G02B3/04
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