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 ...

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 ...

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.

MUNICH, Germany—ARRI has announced the addition of the Orbiter Fresnel lens to its selection of Orbiter optics, making its LED luminaire even more versatile. Combined with Orbiter’s ARRI Spectra light ...

Fresnel lenses are used in many fields, including: Projection display: Fresnel projection TV, rear projection Fresnel screen, overhead projector, collimator; Concentrating light: Fresnel lens for ...