Assertion: laser | /r/ObjectUse | used in barcode scanners
Facets:
Source sentences:
text: Lasers are used in optical disk drives, laser printers, barcode scanners, DNA sequencing instruments, fiber-optic, semiconducting chip manufacturing (photolithography), and free-space optical communication, laser surgery and skin treatments, cutting and welding materials, military and law enforcement devices for marking targets and measuring range and speed, and in laser lighting displays for entertainment.
text: They are used in common consumer devices such as DVD players, laser printers, and barcode scanners.