A system that projects light beams directly into the eye could change the way we see the world.
US firm Microvision has developed a system that projects lasers onto the retina, allowing users to view images on top of their normal field of vision.
It'* not shooting the laser straight into your eye!! They have a kind of a diagram at the bottom showing it'* just a strap on HUD. Now that I think about it, I got to play with one of them in the Army back in the early 80'*. Apache pilots have been using them for that long (Optical sighting system. Pretty dang neat!!)
The scanned beam is focused onto an optical element called an exit pupil expander. When the light from the expander is collected by a lens and guided by a mirror and a see-through monocle to the eye, it covers the entire area seen by the pupil.
Microvision say the technology is safe because of very low strength of the laser used.
The power of the light is about a thousandth of a watt," said Mr Goldstein.
"Not only is it low power, but it is also not dwelling in one place on the retina for any period of time