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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We used light pens (compact lasers) and filters at wavelengths of 680, 780, and 830 nm.
A light pen with a keyboard wedge adds bar code reading capability to an existing computer without the need for special programming.
Visible light pens typically yield low read rates from poor quality symbols.
Our new FastPoint Tablets are half as thick, twice as fast and twice as accurate as most existing tablets, and our light pens were recently proven to be twice as fast as a mouse," said Dennis Quiggle, Director of Marketing for FTG.
FTG gains better access into the OEM and custom markets where HEI was extremely successful for more than 20 years, and HEI's light pen customers now have a supplier that is completely focused on light pens and customer support.
Write anywhere in any size using a CAD or graphics tablet, light pen or pen computer using multiple strokes in your own handwriting.
Light pens deliver active and accurate interaction between the user and the system to provide a full range of mouse-like capabilities.
The company stated that the increased revenues were due to continuing strength in shipments of its custom hybrid microelectronic devices and light pens.
During the Engelbart studies, a number of already existing pointing devices were tested, including trackballs, light pens and primitive tablets.
o Touchscreen Support -- Prospector works with any type of touchscreen, as well as other input devices such as trackballs, light pens, or mice.
Finally, MicroSpeed's wholly owned subsidiary, Design Technology, presents a brand new line of light pens.
FTG's light pens are designed as a complement to mice and tablets, giving users a more intuitive way to draw, edit, point and select.