Interactive projectors are used to display a computer screen onto any surface. They use a technology called Ultra Short Throw that allows them to cast an extremely sharp image onto any wall or whiteboard from just a short distance away. Traditional projectors are placed quite a few feet away from the projection surface to enable sharp delivery of the image.
This has two main disadvantages.
- If the person delivering the training session or presentation stands close to the wall or whiteboard so they can highlight parts of the on-screen content, they would be dazzled by the brightness of the light from the projector.
- If anyone walks in front of the projector’s beam a shadow is cast onto the wall or whiteboard which stops other seeing the screen. When this happens people tend to quickly get out of the way, but it can be annoying and has the capacity of break concentration in serious meetings.