ULTRA-SHORT-THROW PROJECTOR EPSON EH-LS100

The Epson EH-LS100 AV projector combines two unusual features in one projector: ultra-short-throw projection, and a laser-diode light source. The lasers deliver long life and low maintenance, while ultra-short-throw allows the projector to sit at the foot of (or close to and above) the projection screen. They use mirrors and some pretty magical optics to cast a picture that’s focused and of comparable brightness across its dimensions, despite the seemingly ludicrous positioning.

EQUIPMENT

In this case, for a 100-inch display in 16:9 aspect ratio, the projector needs to be located with its projection window just 610mm away from the screen. Since the projection window is actually near the back of the projector, its body is 260mm from the plane of the screen for that display.

We have to specify the aspect ratio because this projector packs, rather than a full-HD display engine, a WUXGA engine. That’s 1920 pixels across by 1200 pixels tall,