(n.) A light detection device used for graphical input. You point the light pen at a location on the graphics display. When the electron gun illuminates the phosphor , the light pen detects the light and sends a signal to the workstation, which records the pixel event at that moment.
LIGHT PEN
Русско-английский перевод LIGHT PEN
Русско-английский электронный словарь Edic. Russian-English dictionary Edic. 2012