Foldscope Analytical Model Parameter Summary Table.

<p>Functional form and select numerical values for the following dependent parameters: Magnification (MAG), Back Focal Length (BFL), Resolution (RES), nOAR (Normalized Optimal Aperture Radius), OAR (Optimal Aperture Radius), Effective Focal Length (EFL), Numerical Aperture (NA), Field of View (FOV), Depth of Field (DOF), Strehl Ratio (SR). These are calculated for infinite “object” distance per analytical model RM2, with aperture radius , , , and with aberration coefficient . All calculations assume an incident wavelength of λ = 0.55 µm, and all specified distances are in units of µm. The indices of refraction n = 1.517 and n = 1.77 correspond to borosilicate glass and sapphire, respectively.