light pen


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light pen,

an electrical device, resembling a pen, that may be used with a computer terminal to enter or modify information displayed on the screen.
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Component after component of the animation is displayed on the rear-projection screen, and counsel uses electronic light pens to circle questionable elements.
At each Light Pen measurement, the compensation LEDs are simultaneously flashed.
Contact light pens and noncontact, hand-held laser scanners extract the information that is optically encoded in bar code symbols.
As we put our Airmen on the ground they can look directly at the pictures from the Predator UAV and other UAVs, can take a digital light pen in what we call the "John Madden Mod" and be able to circle a place on the screen and send that back up to the airplane much the way John Madden diagramed plays for millions of viewers on ABC "Monday Night Football.
Andrew Castle has been given Andy Gray's light pen so he can draw on the screen.
The light pen is used in areas of the hospital that can accommodate a standard full-sized computer.
Highlight key information, for example, by using a light pen (which one holds and manipulates just like a pencil) on the monitor.
All process changes are made using a light pen, which allows fast, accurate selection of all or individual zones.
The familiar light pen is a hand-held, contact reader.
In Allen-Bradley's case (and others), a light pen can be used to do Setup without a need for programming or even a programming terminal.
All process changes are made using a light pen, which allows for fast, accurate selection of all or individual zones.