Light Sources for High-Speed Photography

Abstract

Light sources particularly suited to application in high-speed photography are surveyed, with intention to include the majority that have become established as useful in practice. The particular advantages of continuous sources and of the rather neglected chemical sources, are given due stress. Electronic “flash” sources are dealt with in more detail, and numerous examples illustrated by particular apparatus and pictures token therewith. It was intended that the paper read, should present a brief account of the state of the art prior to the sixth International Conference on High Speed Photography. The text therefore arbitrarily omits mention of some sources which have enjoyed rather restricted popularity, or have (like the latter) involved such recent and rapid development that objective comment is hardly possible.