Generally knowledge/\/ - Light Pen Light pen is a pointing device which is similar to a pen. It is used to select a displayed menu item or draw pictures on the monitor
Pen | video game:Vectrex Light Pen - General Consumer Electronics, Inc. — Google Arts & Culture
What is a Light Pen? - GeeksforGeeks
Amazon.com : Glovion Led Light Pen,Penlight for Nighttime Writing White- Pack of 3 Pens : Office Products
Streamlight 65186 Stylus Infrared Red LED Pen Light with 3 AAAA Alkaline Batteries, Olive Drab Green - Basic Handheld Flashlights - Amazon.com
Amazon.com: Glovion Lighted Tip Pen with Stylus 3-in-1 LED Penlight Light Up Pen Light Ballpoint Pen with Light for Writing in The Dark - Pack of 3 - White Light - GL006