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.

Keywords computer graphics, Bell Telephone Laboratories, Graphic 1, circuit design, electronic light pen, programming, visual representation, communication satellites, sound waves, artistic ...

Sometimes the simplest of projects end up revealing the most interesting of things, as for example is the case with [Ryo Mukai]’s light pen for the Vectrex console. It’s an extremely simple ...