1、HexaVision Aspheric XO2HexaVision Aspheric XO3HexaVision Aspheric XO4HexaVision Aspheric XO5眼科学、视光学对人眼及人工晶体眼眼科学、视光学对人眼及人工晶体眼“准直状态准直状态”的论述的论述HexaVision Aspheric XO6HexaVision Aspheric XO7HexaVision Aspheric XO9HexaVision Aspheric XO10HexaVision Aspheric XO11HexaVision Aspheric XO13HexaVision Aspheric
2、 XO14球面表面与非球面表面的定义球面表面与非球面表面的定义Aspheric surface Zasph can be described:1。Radius(x)2。Asphericity(Q）:Q=0 is spherical,Q 0 is ellipses and prolate,which is flatter in the peripheral than in the centerHexaVision Aspheric XO15 Z asph(x)=cx2cx2cx21+1-(1+Q)c2x2HexaVision Aspheric XO16Z asph(x)=cx21+1-(1+Q)
3、c2x2+A4 x4+A6 x6+A8 x8+A10 x10HexaVision Aspheric XO17扁长椭球非球面可聚焦全部光线于一点以矫正人工晶体处于理论中心位置时的球差，但一旦人工晶体处于非准直状态时它却会产生各种高阶像差。而非扁长椭球非球面在人工晶体处于理论中心位置时可能存在很小的球差，但它却控制了当人工晶体处于非准直状态时产生的各种高阶像差。HexaVision Aspheric XO18Pupil radius 3.5mmLongitudinal aberrationsDash line Spherical Aberration can be corrected by a P
4、rolate surfaceSolid line High Order Aberrations can not be corrected by the Prolate surface,Require a Non-prolate surface.HexaVision Aspheric XO19HexaVision Aspheric XO20HexaVision Aspheric XO21HexaVision Aspheric XO22HexaVision Aspheric XO23HexaVision Aspheric XO28HexaVision Aspheric XO29HexaVision Aspheric XO30HexaVision Aspheric XO31HexaVision Aspheric XO32HexaVision Aspheric XO44Note,this analysis was based on 20D XO lens.HexaVision Aspheric XO45HexaVision Aspheric XO46
