Vision Advancement LLC, Newport Coast, California 92657, USA.
J Cataract Refract Surg. 2011 Nov;37(11):2053-9. doi: 10.1016/j.jcrs.2011.04.038.
To expand a geometrical model of diffraction efficiency and its interpretation to the multifocal optic and to introduce formulas for analysis of far and near light distribution and their application to multifocal intraocular lenses (IOLs) and to diffraction efficiency optimization.
Medical device consulting firm, Newport Coast, California, USA.
Experimental study.
Application of a geometrical model to the kinoform (single focus diffractive optical element) was expanded to a multifocal optic to produce analytical definitions of light split between far and near images and light loss to other diffraction orders.
The geometrical model gave a simple interpretation of light split in a diffractive multifocal IOL. An analytical definition of light split between far, near, and light loss was introduced as curve fitting formulas. Several examples of application to common multifocal diffractive IOLs were developed; for example, to light-split change with wavelength. The analytical definition of diffraction efficiency may assist in optimization of multifocal diffractive optics that minimize light loss.
Formulas for analysis of light split between different foci of multifocal diffractive IOLs are useful in interpreting diffraction efficiency dependence on physical characteristics, such as blaze heights of the diffractive grooves and wavelength of light, as well as for optimizing multifocal diffractive optics.
Disclosure is found in the footnotes.
将衍射效率的几何模型及其解释扩展到多焦点光学，并引入用于分析远光和近光分布的公式，并将其应用于多焦点人工晶状体（IOL）和衍射效率优化。
美国加利福尼亚州纽波特海岸的医疗器械咨询公司。
实验研究。
将一个几何模型应用于（单焦点衍射光学元件）的正弦相位掩模，扩展到多焦点光学，以产生远像和近像之间的光分裂以及其他衍射级的光损耗的分析定义。
几何模型为衍射多焦点 IOL 中的光分裂提供了简单的解释。引入了远、近和光损耗之间的光分裂的分析定义，作为曲线拟合公式。开发了几个常见的多焦点衍射 IOL 的应用示例，例如，与波长的光分裂变化。衍射效率的分析定义可能有助于优化最小化光损耗的多焦点衍射光学元件。
用于分析多焦点衍射 IOL 中不同焦点之间光分裂的公式有助于解释衍射效率对物理特性的依赖性，例如衍射槽的闪耀高度和光的波长，以及优化多焦点衍射光学元件。
在脚注中发现了披露信息。
