However, some applications require unconventional approaches. This Design Idea design concerns circuitry I recently designed for a tunable-diode laser spectrometer for a Mars-exploration application.

At its most basic, the Game Frame is a display — but it’s a very nice-looking one. A premade set of LEDs shine through a laser-cut grid, which prevents light from one pixel from leaking into ...

I recently got offered a laser engraver for review, and the plain novelty factor meant I couldn’t turn it down. The Neje DK-8-KZ 1000mW laser engraver a $83 gadget that could be used to ...