Object illumination angle measurement in speckle interferometry

T. W. Ng, F. S. Chau

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4 Citations (Scopus)


Errors in measurement of the object illumination angle affect fringe interpretation accuracies in speckle interferometry. To measure the object illumination angle we propose a method based on the moire effect. The technique is easy to implement and was found to yield fast and accurate measurements.

Original languageEnglish
Pages (from-to)5960-5961
Number of pages2
JournalApplied Optics
Issue number25
Publication statusPublished - 1 Jan 1994
Externally publishedYes

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