1 December 1991 Novel grating methods for optical inspection
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The shadow moiré and reflection moiré are revisited using computer generated gratings written on a Liquid Crystal Display (LCD) panel. These gratings have the ability to rapidly and easily vary their pitch and thus their sensitivity. Further, the ability to precisely shift the gratings enables rapid image processing algorithms to be designed for enhancement of the fringes, as well as provides means for quantification using phase shifting algorithms.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anand Krishna Asundi, Anand Krishna Asundi, } "Novel grating methods for optical inspection", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); doi: 10.1117/12.57462; https://doi.org/10.1117/12.57462

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