Obstfeld H
Department of Optometry and Visual Science, City University, London, UK.
Ophthalmic Physiol Opt. 1991 Jul;11(3):248-51.
Uncut spectacle lenses of various powers and materials were edged to three different eye shapes and three box eye sizes. Their weights were measured. This demonstrated that the eye shape has very little effect on the weight of edged lenses and that there is very little difference in weight for neighbouring eye sizes. The density of the lens material is of major importance, but other characteristics also influence the edged lens weight.
各种度数和材质的未切割眼镜镜片被加工成三种不同的眼形和三种镜框尺寸。测量了它们的重量。这表明眼形对磨边镜片的重量影响很小,相邻镜框尺寸的镜片重量差异也很小。镜片材料的密度至关重要,但其他特性也会影响磨边镜片的重量。