Overhead Projector For Academic And Business

An overhead projector is a large box that contains a light source, a cooling fan and a large lens to focus the light. Most overhead projectors also have a mirror that redirects the light forward, rather than up and transparent film is placed over the lens for display. The image is then projected onto a screen for an audience to see.

There are many things to look at when purchasing an overhead projector. To extend your lamp life by 20% and get flicker-free images, look for the "electronic soft-start power supply" feature. You may also appreciate "built-in AC outlets," which provide added connection options so you can connect to computers or LCD panels.

The "hi/lo economy switch" lets you change your brightness settings to reduce lamp stress and keep your bulb lasting longer. If storage space is limited, then you might want to look for a "fold-away design" for your multimedia projector. A "rotating head" is important if your presentation venue will change.

In high stakes presentations, an "automatic lamp changer" switch is very handy for quick, easy projector lamp changing so you don't miss a beat. In terms of brightness, something between 3,200 to 4,000 lumens is ideal, although some windowless rooms can get by on 2,000.

You can save a lot of money going with an overhead projector, rather than a home theater projector or multimedia projector. However, it's important that you consider your audience. More often than not, overhead projectors are used in academic settings from grade school to university level.

Business professionals may prefer a more advanced data projector for their advanced presentations. It's important that you consider reliability, manufacturer and warranty in whichever model you choose.

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