Wiktionary
lightpen
n. (alternative spelling of light pen English)
Usage examples of "lightpen".
He saw that Yamazaki was scribbling frantically on the screen of a small notebook, the lightpen flashing faintly in the dark.
Peter used that brief diversion to seat himself next to Mai Leitao, who made herself very busy, precisely setting out her notepad and lightpen, fussing with the hard copy in front of her.