Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR LIGHT PEN

Made of fine and light pen steel, and works as well in shirt sleeves as with a coat on.

A light pen held against a particular part of the display pattern can be used to signal the computer.

The light-spot cursor and joy-stick method replace the light pen in this case.