建筑平板玻璃的标准钢化工艺会在现代玻璃应用中产生横向应力分布的微小波动，从而导致双折射和不希望的光学虹彩，也称为各向异性效应。全场数字光弹性的最新进展使得可以在熔炉末端在线测量玻璃板的延迟，并以平方米为单位评估钢化玻璃的光学质量。根据应用的不同，可以使用各种技术来分析应力或测量从零到约 1000 nm 的延迟水平。简要介绍了应力差异的产生及其对立面玻璃的光学各向异性效应的影响，以说明这些新技术的好处。本文的目的是概述用于测量钢化玻璃延迟的不同全场方法及其当前的开发和使用状态。最后，提出了基于最近文献的比较。

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The standard tempering process for architectural flat glass creates minor fluctuations in the lateral stress distribution resulting in birefringence and undesired optical iridescence, also known as anisotropy effects, in modern glass applications. Recent advances in full-field digital photoelasticity have made it possible to measure retardation in glass panes in-line at the end of the furnace and evaluate the optical quality of tempered glass on the square-meter scale. Depending on the application, various techniques can be used to analyze stresses or measure retardation levels ranging from zero to about 1000 nm. A brief introduction to the creation of stress differences and their effect on the optical anisotropy effects of facade glazing is given to illustrate the benefits of these novel techniques. The purpose of this paper is to provide a general overview of the different full-field methods for measuring retardations in tempered glass and their current state of development and usage. Finally, a comparison based on recent literature is presented.