Been eyeballing those sweet new high definition projectors? So have we. We're not going to feel guilty for it either, we know what we like. But if your wallet is a little light from your last Engadget ...

I was surfing the web last night and came across a kit for a 6X fresnel lense and designs to make a projector of your existing TV. I was a bit perplexed by this as it could be an inexpensive ...

If you are a Hackaday reader, you probably know what a Fresnel lens is. You find them in everything from overhead projectors to VR headsets. While it seems commonplace now, the Fresnel lens was an ...

If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this problem ...

Building upon the success of the recently introduced PlutoFresnel, Astera is enhancing its battery-powered, LED-based PlutoFresnel light with the launch of ProjectionLens. This new solution will allow ...

If you're thinking about adding a projector to your home, DIY site Instructables has a step-by-step guide on how to create your own functional projector for much less than you would ever pay retail.

Fresnel lenses were invented over two centuries ago to help lighthouses prevent shipwrecks. They're still enhancing safety, ...

So, in case you haven't noticed, we're building our own LCD projector! In part one we specced out what we needed and got together some optics. In part two we really tore into our 19-inch Samsung ...