An experimental setup allowing the modeling of conditions in optical devices and in the eye at
various degrees of scattering such as cataract pathology in human eyes is presented. The scattering
in cells of polymer-dispersed liquid crystals (PDLCs) and ‘Smart Glass’ windows is used in the
modeling experiments. Both applications are used as optical obstacles placed in different positions
of the optical information flow pathway either directly on the stimuli demonstration computer screen
or mounted directly after the image-formation lens of a digital camera. The degree of scattering is
changed continuously by applying an AC voltage of up to 30–80 V to the PDLC cell. The setup uses a
camera with 14 bit depth and a 24 mm focal length lens. Light-emitting diodes and diode-pumped
solid-state lasers emitting radiation of different wavelengths are used as portable small-divergence
light sources in the experiments. Image formation, optical system point spread function, modulation
transfe…