  The emergence of visible light communication (VLC) technology as a solution
to solve radio frequency impediments, such as spectrum shortage, is
continuously appealing. In addition to its large and unlicensed bandwidth, VLC
provides a high level of security in a closed room with zero radio frequency
interference. However, loss of the VLC signal is experienced when the receiver
rotates or moves. This challenge requires a special solution for integration
into portable devices. On the other hand, re-configurable intelligent surface
(RIS) is a technology exploited in radio frequency to solve dead zones and loss
of signal. RIS elements are characterized by tunable physico-chemical
characteristics including physical depth and refractive index. In this paper,
we exploit these RIS attributes to steer the incident light beam and offer the
VLC receiver a large range of rotation angle while improving its signal
detection capabilities. We show that instead of using convex, parabolic, or
spherical lenses, adopting a meta-lens with artificial muscles or a thin-film
crystal-liquid with embedded Titanium dioxide nano-disk, a VLC receiver can
detect light rays at $90^o$ incidence angle with high precision and
considerable improvement in the detected light intensity, even with a
miniaturized single photodetector.
