You’ll also need a focusing lens (just a few dollars), some thermal glue, an LM317, a resistor, and a pair of protective goggles matching the laser diode’s wavelength. He fits the diode into ...

Laser Research CO2 Focusing Lenses come in plano-convex and meniscus configurations in 1" to 2" O.D. sizes with thicknesses ranging from 0.250" to 0.380" and can be supplied plain or mounted.

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.

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.

It requires gonioscopy, in which the clinician holds an exterior lens against the surface of the eye so as to direct the incident laser at an oblique angle towards ... with the DSLT technique a ...