Cylindrical Grating Projection by Single-Shot Normal Exposure of a Radial Phase Mask

Abstract : A periodic grating is defined at the photoresist-coated wall of a circular cylinder with an integer number of particularly long grooves parallel to the generic lines by the holistic exposure of a radial phase mask to a normally incident collimated laser beam. The single- shot projected element corresponds to the inner grating of a high-resolution miniature shaft encoder.
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Contributor : Yves Jourlin <>
Submitted on : Wednesday, August 29, 2012 - 6:37:16 PM
Last modification on : Wednesday, July 25, 2018 - 2:05:30 PM

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S. Tonchev, Yves Jourlin, S. Reynaud, O. Parriaux. Cylindrical Grating Projection by Single-Shot Normal Exposure of a Radial Phase Mask. IEEE Photonics Journal, Institute of Electrical and Electronics Engineers (IEEE), 2012, 4 (4), pp.1170-1177. ⟨10.1109/JPHOT.2012.2207096⟩. ⟨ujm-00726382⟩

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