Abstract
This paper describes a laser based electrooptic alignment system that is unaffected by tilt of its components and is suitable for a wide variety of industrial applications. The system comprises an intensity modulated laser, a simple focusing element, and an image detector incorporating a Schottky barrier position-sensing photodiode. The design and performance of the equipment are discussed and briefly compared with conventional techniques, the two typical applications described serving to illustrate the versatility and accuracy of the system.
© 1974 Optical Society of America
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