Texas-based Extron Electronics was among those companies at last year’s InfoComm in Las Vegas, where it displayed its WallVault Systems that are designed for classrooms with a wall-mounted short-throw projector or flat-panel display.

WallVault Systems include all the necessary audio and video switching, sound amplification, system control, source connectivity, speakers, mounting hardware, and cabling for a complete classroom audio-video solution, the company says; all that’s left to add is the video projector or flat-panel display itself.

Instructors can control their projector or flat-panel display through a wall-mounted controller, switching back and forth between a computer, DVD, VCR, or other media source connected to the display and adjusting the volume as necessary. Or, they can control the system via the school’s network, using a graphical interface on a web page.

Affordable ‘non-extreme’ short throws

Not every extreme short-throw projector can cast images on screen from just five inches away, but the projector market is full of options that work from a few feet away and are more affordable for schools and colleges with tight technology budgets.

NEC’s NP-M300WS, for example, is available for $1,099. The projector’s LCD display can produce a crisp image from just 22 inches away from a screen, according to the company. And with a lamp life of 3,500 hours, school IT officials won’t have to buy replacement bulbs every few months.

The Sanyo PDG-DWL100 is another low-price short-throw option for classrooms with tight spaces. The Sanyo projector can cast images from as little as 20 inches away from a screen or wall, and at 39 inches, the projector can produce an 80-inch image.

Dell’s M410HD is also among affordable short-throw projectors that could be a top choice in education. For $859, schools can have a projector that can fill a screen from just over three feet away.

More news about presentation technology:

3D content for education on the rise

Projectors becoming more interactive

New AV systems offer sharp images, ‘green’ projection