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.
Interactive projectors get around these problems by using Ultra Short Throw. Typically, an interactive projector is installed on the same wall as the whiteboard or the desired surface used for displaying the image from the projector. This short distance means there is not enough space for the light beam to cast a large enough shadow to hide the screen or dazzle the person delivering the training session or presentation.
All interactive projectors are supplied with an interactive pen like tool which is used to control the computer via the projected image; even if it is not displayed on a whiteboard. This mouse like pen is able to open programs, write on screen and do just about anything a mouse can do without the need to go anywhere near the computer.
Some interactive projectors are supplied with software to enable annotation. Using the interactive pen you can highlight a part of the screen, cut it, and transfer it into another document. The software comes with many different functions and is suitable for a whole range of subjects. If you have used a program like Photoshop, Paint or something similar, you will be familiar with the supplied software as it is very similar in style, presentation and function.
Some interactive projectors have built-in speakers to enable the use of sound. In most traditional projectors extra equipment is needed.
If you are looking for a new tool for delivering training in the work place it is certainly worthwhile taking a good look at interactive projectors. They are seen as a viable alternative to the traditional whiteboard and projector set-up that is currently popular.