近些年来,随着科学技术的进步,感光测定的用途越来越广泛。不仅在胶片制造、电影摄影、洗印加工控制等方面成为必不可少的手段;而且在天文、地质、测绘等科学技术领域和若干工业部门也被广为应用。为使感光材料的特性能够得到合理的使用和控制,本文想就感光测定的基本知识作些简单介绍。 In recent years, with the progress of science and technology, the use of photometry is more and more widely used. It has become an indispensable tool not only in the field of film production, film photography, processing and printing control, but also widely used in the fields of science and technology astronomy, geology, surveying and mapping and several industrial departments. In order to make the characteristics of photosensitive materials can be reasonably used and controlled, this article would like to make a brief introduction to the basic knowledge of photometry.