Position Tolerancing of Freeform Phase Plates for Variable Extended Depth of Field Imaging

Moein, Sara; Suleski, Thomas J.

doi:10.1364/flatoptics.2021.jth3a.3

OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT) 2021

DOI: 10.1364/flatoptics.2021.jth3a.3

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Position Tolerancing of Freeform Phase Plates for Variable Extended Depth of Field Imaging

Sara Moein

Thomas J. Suleski

Abstract: We discuss and analyze the sensitivity to misalignment errors of a freeform phase plate pair designed to enable variable extended depth of field imaging. Methods and impacts of the errors on system performance are demonstrated.

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Fabrication and characterization of freeform phase plates for extended depth of field imaging

et al. 2023

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Point spread function engineering uses specially designed phase plates placed at the exit pupil of an imaging system to reduce defocusing sensitivity. A custom phase plate is typically required for each system to enable extended depth of field imaging, so methods enabling variable extended depth of field imaging are of particular interest. In this paper, we discuss the fabrication of previously designed fixed cubic phase plates and variable phase plate pairs with quartic surface profiles and present a novel application of a point source microscope for performance characterization. Experimental measurements of through-focus point spread functions are compared with predictions to demonstrate and characterize the extended depth of field for both fixed and variable freeform phase plates.

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Fabrication and characterization of freeform phase plates for extended depth of field imaging

et al. 2023

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Position Tolerancing of Freeform Phase Plates for Variable Extended Depth of Field Imaging

Abstract: We discuss and analyze the sensitivity to misalignment errors of a freeform phase plate pair designed to enable variable extended depth of field imaging. Methods and impacts of the errors on system performance are demonstrated.

Cited by 1 publication

References 5 publications

Fabrication and characterization of freeform phase plates for extended depth of field imaging

Fabrication and characterization of freeform phase plates for extended depth of field imaging

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