light pen

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

Related topics: Computers

ˈlight pen noun [countable]  TDa piece of equipment like a pen, used to draw or write on a computer screen 〔用于在计算机屏幕上画线或书写的〕光笔

Examples from the Corpus

light pen• And when the program is ready, the student enters it simply by moving a light pen across the bar codes.• When the light pen is moved over the code, it triggers the chips to make sound through the loudspeaker.From Longman Business Dictionarylight penˈlight pen noun [countable]COMPUTING a special piece of equipment shaped like a pen, used to read printed computer codes on product labelsThe TX-2 uses a light pen to enter data straight on to the system.

ˈlight pen nounChineseSyllable  

used like Business a of a piece pen, equipment Corpus

light pen
ˈlight pen noun [countable]
a piece of equipment like a pen, used to draw or write on a computer screen

light penBrE /ˈlaɪt pen/ 🔊NAmE /ˈlaɪt pen/ 🔊 nouna 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 （用于向计算机输入信息的）光笔a similar piece of equipment that is used for reading barcodes 光笔；条码识读器