Characterization of collimation and beam alignment

Liquid crystal cells – elements and systems – Liquid crystal system – Computational system employing liquid crystal element

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2502521, 25055935, 250550, 2502013, 2502019, 356359, 359900, 359638, G01J 120, G02B 2762

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active

059780533

ABSTRACT:
An apparatus and method for characterizing light beam collimation and alignment. A liquid crystal device receiving a light beam from a collimation lens has a lenslet array generated thereon. A corresponding array of point spread functions are detected by a charge coupled device camera, from which light beam collimation and alignment are characterized. The data may be further used to adjust the collimation lens to correct misalignment.

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