Berger R
Am J Optom Physiol Opt. 1976 Aug;53(8):396-407. doi: 10.1097/00006324-197608000-00002.
Some well known statistical models for fracture were applied to the problem of impact of glass ophthalmic lenses. Parameters for a flaw distribution function were chosen to fit some previously published results of drop ball testing. The concept of an impact-resistant lens was reformulated in terms of minimizing the most severe flaws. Formulas were derived for the detection parameter, a convenient measure of the ability of any mechanical test to identify those lenses with the worst flaws. It was shown that the fraction of such lenses identified by the drop ball test is very small. As a side note, it was found that it is not significantly more difficult to expose "bad" lenses when they are tested in plastic bags. A method of obtaining useful information from the results of drop ball testing was outlined.
一些著名的骨折统计模型被应用于玻璃眼镜片的冲击问题。选择缺陷分布函数的参数以拟合先前发表的落球测试结果。抗冲击镜片的概念根据将最严重缺陷最小化进行了重新表述。推导了检测参数的公式，这是一种衡量任何机械测试识别具有最严重缺陷镜片能力的便捷方法。结果表明，落球测试识别出的此类镜片比例非常小。顺便提一下，发现当在塑料袋中测试时，暴露“劣质”镜片并不会显著更困难。概述了一种从落球测试结果中获取有用信息的方法。
