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/e2 intensity fan angle is proposed as the standard parameter to describe the line generator.
© 1998 Optical Society of America
Original Manuscript: September 25, 1997
Revised Manuscript: March 16, 1998
Published: July 20, 1998
Haiyin Sun, "Standardization of the definition and measurement of the line length and fan angle of laser line generators," Appl. Opt. 37, 4862-4866 (1998)