Nowadays, the greatest progress can be seen in a SCENICC
project (Soldier Centric Imagining via Computational
Cameras) by the DARPA agency [6] and their technology of
artificial lenses iOptik. iOptik is a special artificial composite
lens that is composed of series of concentric circles. The
central part of the lens is made so that the user was able to
focus on very close objects the outer circles process the
polarized light and surrounding image. The result is that the
user sees normal events around as well as the presented
information on the semi-transparent display installed in
ordinary glasses. By utilizing the entire surface of glass the
field of view can be up to 120°. The real and projected images
are overlapping at the same time and thanks to the lens the eye
can focus both perceptions simultaneously.