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.

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 ...

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.

The idea is pretty simple — mount a decent-sized magnifying lens where the laser optics would normally go on a laser engraver, and point the thing at the sun. But as usual, the devil is in the ...

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 ...