but do not actually use a laser. LED printers use an array of LEDs to beam the image onto the drum, and electron beam imaging (ion deposition) creates the image with electricity rather than light.

And because the printer’s lateral resolution is determined mainly by the micrometre-scale diameter of the laser beam, this technology can produce objects with exceptionally fine detail for ...

Knowledge of a laser beam's shape and output-power distribution is critical for optimizing laser performance. Neil Savage summarizes the latest beam-profiling products on the market. People using ...