Laser scanners are used in: 3d printers, laser printers, for treatment of long-sighted eyes, laser shows, in microscopes, laser tv, LIDAR which is a technology that can determine the distance of objects. It is also used in barcode scanners.

the tv

A normal HDTV has better picture quality than a Laser TV. A laser TV basically looks like projector, whereas the normal HDTV has HD quality picture screen for your taste.

No, laser vision is not real. It only happens in TV, primarily cartoons or superhero based genres. You may not and cannot shoot laser beams from your eyes.

If you're black yes