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View synonyms for light pen
light pen
noun
, Computers.
- a handheld light-sensitive device used for pointing at characters or objects on a CRT in order to make or modify drawings or to indicate functions to be performed.
light pen
noun
- computing
- a rodlike device which, when applied to the screen of a cathode-ray tube, can detect the time of passage of the illuminated spot across that point thus enabling a computer to determine the position on the screen being pointed at
- a penlike device, used to read bar codes, that emits light and determines the intensity of that light as reflected from a small area of an adjacent surface
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Word History and Origins
Origin of light pen1
First recorded in 1955–60
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Example Sentences
A pen with high pressure sensitivity picks up even light pen strokes, making it easy to create different shades and shapes without digital augmentation.
From Popular-Science
When you are firing out at night, the red tracers go out into the blackness as if you were drawing with a light pen.
From The Daily Beast
The light-spot cursor and joy-stick method replace the light pen in this case.
From Project Gutenberg
A light pen held against a particular part of the display pattern can be used to signal the computer.
From Project Gutenberg
Made of fine and light pen steel, and works as well in shirt sleeves as with a coat on.
From Project Gutenberg
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