Learn how to make your own smartphone projector at home using simple materials like a cardboard box, hot glue, and an incandescent light bulb. This step-by-step craft tutorial shows you how to ...

A large LCD is entirely unsuitable. Light (especially high intensity of the sort used for projection) makes heat. The more light that must be "filtered away" the more heat you must be able to transfer ...

For starters, this projector is an analog old-fashioned hand-held projector. In addition, it uses a mechanical gear transmission and can achieve a real display. Furthermore, this old-fashioned ...