A light-sensitive stylus wired to a video terminal used to draw pictures or select menu options. The user brings the pen to the desired point on screen and presses the pen button to make contact.

Who needs a 1920×1080 OLED display when you can have an 8×8 matrix of LED goodness? That’s the question [Kathy] asked when she built this LED matrix light pen project. It looks simple enough – a ...

The film showcases the innovative work of engineers at Bell Telephone Laboratories as they explore computer graphics and its applications in designing electronic circuits. Using a device called ...

If you’ve ever used a hot glue gun for a craft project, you already know how tricky and messy they can be to work with. And this is partly why the handful of 3D printing pens already on the market ...

A new patent could hint at a future Surface Pen can harvest its power from the LEDs in your Surface's display. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Malcolm Lyall-Watson reports for Tomorrow's World on the computer interface of the future - a light pen that can draw directly onto a phosphorescent computer screen. The device, developed by Elliott ...