Question: What foundation does the inventor of the first laser printer available to the mass market run?
Sentence (from "Laser"): Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers. Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum, i.e., they can emit a single color of light.
Relevant evidence: No