Appendix: Glossary

ANSI LUMENS — A standard for measuring the brightness. It is calculated by dividing a square meter image into nine equal rectangles, measuring the lux (or brightness) reading at the center of each rectangle, and averaging these nine points.

ASPECT RATIO — The most popular aspect ratio is 4:3 (4 by 3). Early television and computer video formats are in a 4:3 aspect ratio, which means that the width of the image is 4/3 times the height.

Brightness — The amount of light emitting from a display or projection display or projection device. The brightness of projector is measured by ANSI lumens.

Color Temperature — The color appearance of white light. Low color temperature implies warmer (more yellow/red) light while high color temperature implies a colder (more blue) light. The standard unit for color temperature is Kelvin (K).

Component Video — A method of delivering quality video in a format that consists of the luminance signal and two separate chrominance signals and are defined as Y'Pb'Pr' for analog component and Y'Cb'Cr' for digital component. Component video is available on DVD players.

Composite Video — A video signal that combines the luma (brightness), chroma (color), burst (color reference), and sync (horizontal and vertical synchronizing signals) into a signal waveform carried on a single wire pair. There are three kinds of formats, namely, NTSC, PAL, and SECAM.

Compressed Resolution — If the input images are of higher resolution than the native resolution of the projector, the resulting image will be scaled to fit the native resolution of the projector. The nature of compression in a digital device means that some image content is lost.

Contrast Ratio — Range of light and dark values in a picture, or the ratio between their maximum and minimum values. There are two methods used by the projection industry to measure the ratio:

1 Full On/Off — measures the ratio of the light output of an all white image (full on) and the light output of an all black (full off) image.

2 ANSI — measures a pattern of 16 alternating black and white rectangles. The average light output from the white rectangles is divided by the average light output of the black rectangles to determine the ANSI contrast ratio.

Full On/Off contrast is always a larger number than ANSI contrast for the same projector.

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Glossary

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Dell M410HD manual Appendix Glossary
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M410HD specifications

The Dell M410HD is a solid projector that offers an array of features suited for both business and educational environments. Known for its versatility, the M410HD is designed to meet the needs of users seeking high-quality projection capabilities.

At the core of the Dell M410HD is its impressive brightness level of 4,000 lumens, making it suitable for various lighting conditions, including well-lit conference rooms and classrooms. The projector supports a native resolution of 1280x800 pixels, which allows for clear and detailed images that are necessary for presentations, videos, and other visual content. Additionally, it is capable of projecting content in HD, enabling users to deliver high-definition visuals without sacrificing quality.

One of the standout technologies in the Dell M410HD is its DLP (Digital Light Processing) technology, which delivers vibrant colors and sharp images. DLP technology is renowned for its reliability and longevity, making it a preferred choice for many users. The projector also features a contrast ratio of 4000:1, enhancing the depth of images and providing a more engaging viewing experience.

The M410HD incorporates various connectivity options, including HDMI, VGA, and USB ports, allowing users to easily connect a range of devices such as laptops and streaming devices. This versatility ensures seamless integration with existing technology setups. The projector’s built-in speaker enhances audio output, minimizing the need for external sound systems during presentations.

For added user convenience, the Dell M410HD also supports wireless projection capabilities when paired with optional adapter accessories. This feature enables users to project content from their mobile devices and laptops without being tethered by cables.

The compact design of the M410HD makes it easy to transport, catering to professionals who frequently present in different locations. With a weight of approximately 6.5 pounds, it strikes a balance between portability and performance, making it a practical choice for on-the-go presentations.

In conclusion, the Dell M410HD is a feature-rich projector that excels in brightness, resolution, and connectivity. Its reliance on effective DLP technology, combined with user-friendly features, makes it a valuable tool for enhancing presentations in any setting. Whether for corporate meetings or educational purposes, the M410HD delivers reliable performance, ensuring that your visual content is always presented at its best.
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