Remember slide shows? The ones that used a carousel projector and real slides? [Brian] wanted to bring his slides into the digital age but was spending far too much time scanning in the 35mm relics.

This DIY Projector with Raspberry Pi features an old projector that is modified with some latest technology nowadays. With few hacks or modifications, this project is fully functional used to display ...

Who hasn’t thought about turning a 1950s slide projector into a digital projector? [Matt] did, but unlike most of us, he actually did it. [Matt]’s friend [Angus] found an old, single-slide, ...

What is the best slide projector? Slide projectors have been around for well over a century, providing the opportunity to take images and display them on a bigger screen for clearer viewing.

Home slide shows of holiday trips used to be all the rage in the 70s, but these days most people prefer to share their snaps instantly via email or social media. But it appears many people are keen to ...

From the bare bulb or out the lens? Out the lens, practically none. Most glass attenuates UV very well. Same for a fluorescent lamp. You need special glass to pass significant amounts of UV.