Standardization of the definition and measurement of the line length and fan angle of laser line generators

摘要

Three different commonly used methods of measuring the length and fan angle of a light line or a light fan produced by a laser line generator were analyzed, tested, and compared. One measurement method is proposed as the standard method, and the resultant 1/e(2) intensity fan angle is proposed as the standard parameter to describe the line generator. (C) 1998 Optical Society of America. [References: None]