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Different Projectors Terms in Detail 

Understanding the technology behind the projectors is a tough job. Every now and then, you may come across many new terms. You can read this glossary of projector terms and definitions, so as to clear all your doubts and queries:

  • Brightness (lumens), the visual perception of light output. Standard ANSI lumen is used to compare projectors. The larger the number of lumens, the brighter the projected image should appear.
  •  Colors, refers to the number of colors that can be displayed at one time based on the number of bits used to hold a pixel. More is better: 16 bits equals 65,000 colors, whereas 24 bits equals 16.7 million “true colors”.
  • Dimensions, The actual size, or “footprint,” of a projector.
  • Home Cinema Screen, the surface onto which an image is projected. A high-quality screen contributes to a crisp, clear image.
  • Keystone Correction, projector’s ability to correct the effects of “pointing up” or “"pointing down” at a screen, enabling the user’s audience to view a rectangular image rather than one with a wider top or bottom.
  • Projection Lamp, type of lamp in a projector, including its wattage and estimated lifetime.
  • Projection Lens, the type of lens in a projector. Its effectiveness is indicated by a throw ratio, representing the projector’s distance from the screen compared to the width of the projected image.
  • Resolution, the degree of sharpness of a displayed image. On screen, it is expressed as a matrix of pixels. The larger the pixel count, the greater a projector’s resolution.
  • Screen Gain, describes the extent to which a projection screen can make a projected image appear brighter.
  • System, the configuration consists of either one or three DLP® chips. It is an optical semiconductor containing an array of microscopic mirrors.
  • Weight, the lightweight nature of the system enables manufacturers to create lighter business projectors for optimal portability.
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