LIGHT PEN


Meaning of LIGHT PEN in English

noun

1.

a piece of equipment, shaped like a pen, that is sensitive to light and that can be used to pass information to a computer when it touches the screen

2.

a similar piece of equipment that is used for reading bar codes

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.