Setting up a home theater requires thought about seating, the projector, speakers, etc. One very important layout question to ask and answer early on: How far should a projector be from the screen?

Overhead projectors use a bright lamp and mirrors to display text or images from a transparency sheet on a wall or screen. If your projector displays a shadow when projecting, you must troubleshoot ...

In most large classrooms, turning the projector on will lower the screen automatically In some large classrooms the screen can be lowered using controls on the touch panel In smaller classrooms, pull ...