TrueDepth works by projecting a grid of more than 30,000 dots onto a subject's face and then estimating the three-dimensional shape of the user's face based on the way the grid pattern was deformed.

This solution keeps the lasers, but goes a slightly different route — two 10-watt lasers bounced between multiple mirrors to create a laser death grid.

Threshold grid pattern laser photocoagulation was titrated to, and designated by, a light grey burn (between grade 1 and 2) in accordance with ETDRS guidelines, then three rings of laser burns at ...

The Arduino powered Laser trip wire system project is currently over on the Kickstarter crowd funding website looking to raise $3,000 pledges to make the jump from concept to production.