If you’ve used a diode laser engraver or cutter, you know that focus is critical ... 530nm to 750nm and is made to screw into a 72mm lens, but it works fine with your eyeballs, too.

Laser engraving can transform plain objects into personalized works of art in a short amount of time. Even minor adjustments ...

Powell prism (Powell Lens) is a specially designed aspheric optical prism, mainly used to convert Gaussian beams (such as laser beams) into linear light spots evenly distributed along a straight line.

Optimized for use with 2/3-inch format radiation tolerant sensors, the new 16mm f/2.8, Model 414 fixed focus non browning lens delivers high image resolution and minimal geometric distortion from 400 ...

It’s been a couple of years since Hisense refreshed its Laser TV ultra short throw projector ... light engine will allow for a variable focus range of 100- to 150-inches diagonal.

His first attempts either blew right through the film or did absolutely nothing, but eventually he had the bright idea to move the laser farther from the LDPE. This put the beam out of focus ...