In this paper, we introduce three well-known methods to define effectiveintensity: Blondel-Rey equation, Form Factor method, and Allard methods. We alsopresent the applications of these methods.

• 本文介绍了测量瞬态光源有效发光强度的三种方法Blondel-Rey法,FormFactor法和Allard法以及它们的应用情况。