Fig. 6: Measurement scheme of the grating acuity.
From: Electronic photoreceptors enable prosthetic visual acuity matching the natural resolution in rats
a Projected grating patterns alternate at 2 Hz, pulsed at a carrier frequency of 64 Hz, with a pulse duration of 4 ms. b Images of the projected gratings with bar widths of 157 and 52 μm, respectively, on a 20 μm implant in a rat eye.
