Lasers are ubiquitous in our daily lives, but do we ever stop to think about the risks they present to our eyes?

The technology behind barcode scanners is both fascinating and complex. At its core, a scanner uses a laser or camera to capture the barcode image, which is then processed by a computer system.

Why all the complication with two inverted character sets? Direction! The grocery checkout barcode scanner hasn’t changed much over the years. It’s mounted in a slot and items are passed over it.

RETSOL LS 450 Laser Barcode Scanner BIS Approved Handheld 1D USB Wired Barcode Reader Optical Laser High Speed for POS System Supermarket Here’s a high performance barcode reader that gives ...

In Soviet Russia, Party finds YOU!!” Only here, it’s a laser rangefinder. In this project (automatic translation), [iliasam] makes his own scanning laser rangefinder, like the ones that we ...