A multi-camera speckle interferometer for dynamic full-field 3D displacement measurement: Validation and inflation testing of a human eye sclera

Academic Article

Abstract

  • We developed and optimized a custom dynamic Electronic Speckle Pattern Interferometer (d-ESPI) for measuring time-dependent three-dimensional (3D) surface displacements during inflation testing of ocular tissues. The 3D displacement field was resolved under dynamic loading conditions for a simplified test case of a rubber phantom and a real-world test case of the posterior sclera of a human eye. We present the optical layout and calibration procedure of the d-ESPI, and demonstrate how the displacement field can be accurately resolved for specimen deformation rates up to 6 μm/s.
  • Authors

    Published In

    Digital Object Identifier (doi)

    Author List

  • Bruno L; Bianco G; Fazio MA
  • Start Page

  • 91
  • End Page

  • 101
  • Volume

  • 107