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Online Product Catalog: Overhead Projectors: Wizard Which Projector is right for you? 3M has put together all the information you need to help you choose the overhead projector that best fits your needs. Overhead projectors are widely used as a simple and reliable presentation solutions. The biggest advantage of using an overhead projector is the ability to write and erase throughout presentation session. To make the best use of your projector choose a model that is right for your application.
Before purchasing or using an overhead projector, it is a good idea to become familiar with the following components and options. Lenses Overhead projector lenses come in three different variations: singlet, doublet, and triplet. The image projected will get sharper as your lens quality increases (singlet is the most basic; triplet is the most advanced). Brightness A projector's brightness is measured in lumens. There is a wide range of lumens available. Lower lumen models work best with black and white images. When using color, choose an overhead projector with high lumens so the color is vivid and bright. Head Types Closed: Lenses and mirror are enclosed to keep out dust and fingerprints. Open: Lenses and mirror are not enclosed. Inverted: This is an open-head version. An inverted head lowers the projector height so it is easier to view the screen. Features Lamp changer: For uninterrupted use if lamp burns out during presentation. Color tuning: For image color adjustment in a wide range of projection. Lamp High/Low switch for brightness vs. longer lamp life. Folding Post for storage and portability. For more detailed technical information, click here. |
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