Abstract

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.

© 1998 Optical Society of America

Kinoforms designed to produce different fan-out patterns for two wavelengths

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