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Knowledge Center / Technical Frequently Asked Questions / Optics FAQs / Optical Lenses / What are the accuracy limitations of a CGH?

What are the accuracy limitations of a CGH?

CGH metrology accuracy is limited by pattern placement error in etching the interference pattern onto the substrate as well as alignment error of the CGH to the interferometer. Often, a CGH will have an alignment feature or built-in mount to mitigate the alignment error.

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