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Smart laser scanning sampling head design for image acquisition applications

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Abstract

A smart laser scanning sampling head design is presented using an electronically controlled variable focal length lens to achieve the smallest sampling laser spot possible at target plane distances reaching 8 m. A proof-of-concept experiment is conducted using a 10 mW red 633 nm laser coupled with beam conditioning optics that includes an electromagnetically actuated deformable membrane liquid lens to demonstrate sampling laser spot radii under 1 mm over a target range of 20–800 cm. Applications for the proposed sampling head are diverse and include laser machining and component inspection.

© 2013 Optical Society of America

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