眼镜镜片与三阶畸变。
Spectacle lenses and third-order distortion.
作者信息
Atchison D A, Smith G
机构信息
Department of Optometry, Queensland Institute of Technology, Brisbane, Australia.
出版信息
Ophthalmic Physiol Opt. 1987;7(3):303-8.
Third-order formulae are developed for calculation of distortion in thin spectacle lenses, when one or both surfaces are conicoid aspherics. Solutions which allow correction of rotatory or peripheral distortion, when one lens surface is a conicoid aspheric, are illustrated. A study of these solutions shows that one of the off-axis power errors (e.g. oblique astigmatism) and one of the distortions can be simultaneously eliminated, but the lens forms required are too curved to be cosmetically feasible.
当薄眼镜镜片的一个或两个表面为二次曲面非球面时，推导了用于计算其像差的三阶公式。文中举例说明了当一个镜片表面为二次曲面非球面时，可用于校正旋转像差或周边像差的解决方案。对这些解决方案的研究表明，可以同时消除一种离轴屈光力误差（如斜散光）和一种像差，但所需的镜片形状过于弯曲，在外观上不可行。
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