| With hundreds of portable projectors on the market, | | | | road, you'll want a small, lightweight projector. Portable |
| the would-be buyer faces an overwhelming array of | | | | projectors typically weigh between 6 and 10 pounds, |
| features and options. The following brief guide can help | | | | and the so-called "ultra portables" between 2 and 6 |
| you choose the projector that's right for your | | | | pounds. Look for a projector that includes a good, |
| needsThe key features to consider are the | | | | sturdy case to keep it safe when traveling.The Room: |
| following:Resolution: | | | | The qualities of the room are crucial to a clearly |
| The resolution is simply the number of pixels | | | | projected image. A large room requires a projector |
| projected onto the screen. The more pixels you have, | | | | with more lumens to reach the screen with sufficient |
| the more closely they are packed together, providing a | | | | brightness. Equally important is the lighting in the room |
| smoother appearance to your image. The resolution is | | | | itself. How dark can you make it? How much light will |
| specified in terms of the number of horizontal and | | | | your audience need (for example, will they be taking |
| vertical pixels in the image. The most common | | | | notes, or simply watching the presentation passively?) |
| configurations have names like VGA and XGA that | | | | Before the audience arrives, experiment with the |
| serve as a shorthand way of referring to these the | | | | lighting in the room by opening and closing blinds and |
| pixel resolution. They are:VGA (640X480 pixels)SVGA | | | | turning on and off various sets of lights, so that you'll |
| (800x600 pixels) Standard.XGA (1024x768 pixels) High | | | | know exactly what to do when it comes time to |
| resolution, currenly the most common in laptops.SXGA | | | | darken the room for your presentation.Computer |
| (1280x1024) The most common resolutions for CAD, | | | | connections |
| GIS and other special graphic applications.UXGA | | | | Make sure that your projector has connectors that |
| (1600x1280) Large format. | | | | are compatible with the laptop computer you plan to |
| The best choice is to purchase a projector that | | | | use with it. These are typically expressed in terms like |
| matches the number of screen pixels on the laptop | | | | VGA, S-Video, RCA, and sometimes by the number |
| computer that will be driving the projector.Luminosity: | | | | of pins on the interface cables (15-pin, etc.) This |
| Luminosity is the quantity of light projected onto the | | | | information is available in the "full specifications" part of |
| screen (i.e., the brightness). It is measured in terms of | | | | the projector information.Portable Projectors have |
| an international ANSI standard called lumens. The | | | | other specifications in addition to these, such as |
| higher the luminosity, the brighter and more visible the | | | | Contrast Ratio, Aspect Ratio, and many other |
| projected image. The greater the distance between | | | | features, but the key parameters described above are |
| the projector and the screen, the more lumens you | | | | the fundamentals that will help you make the right |
| need for a clear image. To project a distance of 20 | | | | choice.Template Ready is the source for quality |
| feet (unless the room is very dark) typically requires a | | | | powerpoint templates and professional presentations. |
| projector with at least 1000 lumens.Dimensions and | | | | Visit Template Ready before you start you |
| weight: | | | | presentation for resources, tutorials and templates. |
| If most of your presentations will be made on the | | | | |