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.

dB— decibel—A unit used to express relative difference in power or intensity, usually between two acoustic or electric signals, equal to ten times the common logarithm of the ratio of the two levels.

Diagonal Screen— A method of measuring the size of a screen or a projected image. It measures from one corner to the opposite corner. A 9FT high, 12FT wide, screen has a diagonal of 15FT. This document assumes that the diagonal dimensions are for the traditional 4:3 ratio of a computer image as per the example above.

DLP— Digital Light Processing—Reflective display technology developed by Texas Instruments, using small manipulated mirrors. Light passes through a color filter is sent to the DLP mirrors which arrange the RGB colors into a picture projected onto screen, also known as DMD.

DMD— digital Micro- Mirror Device— Each DMD consists of thousands of tilting, microscopic aluminum alloy mirrors mounted on a hidden yoke.

DVI— Digital Visual Interface— Defines the digital interface between digital devices such as projectors and personal computers. For devices that support DVI, a digital to digital connection can be made that eliminates the conversion to analog and thereby delivers an unblemished image.

Focal Length— The distance from the surface of a lens to its focal point.

Frequency— It is the rate of repetition in cycles per seconds of electrical signals. Measured in Hz.

Hz — Frequency of an alternating signal. See Frequency.

Keystone Correction— Device that will correct an image of the distortion (usually a wide-top narrow-bottom effect) of a projected image caused by improper projector to screen angle.

Laser Pointer— A small pen or cigar sized pointer that contains a small battery powered laser, which can project a small, red (typically), high intensity beam of light that is immediately very visible on the screen.

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Glossary

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Dell 2400MP manual Glossary
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2400MP specifications

The Dell 2400MP is a versatile and robust multimedia projector that has gained a reputation for its reliability and performance in various settings, from educational institutions to corporate environments. As a well-rounded device, it combines advanced features and a user-friendly design to accommodate a range of presentation needs.

One of the standout characteristics of the Dell 2400MP is its impressive brightness. With a capability to produce up to 2400 ANSI lumens, this projector ensures that presentations remain clear and visible even in well-lit rooms. This brightness level makes it particularly suitable for both small and large venues where ambient light could otherwise diminish image quality.

The resolution of the Dell 2400MP is another notable feature. It boasts an SVGA resolution of 800 x 600 pixels, which provides a crisp display for text, images, and videos. This resolution is ideal for standard business presentations and educational purposes, where clarity and detail are essential for effective communication.

In terms of connectivity, the 2400MP includes a variety of ports, allowing users to connect it seamlessly to different devices. With options for VGA, composite video, S-Video, and USB connections, it supports a wide range of multimedia devices, such as laptops, DVD players, and gaming consoles. This flexibility enhances its usability in various scenarios.

The Dell 2400MP also incorporates advanced lamp technology. It features a long-lasting lamp that can deliver up to 3000 hours of usage in Standard mode, and up to 4000 hours in Eco mode, significantly reducing maintenance costs and downtime. The Eco mode not only extends the lamp life but also lowers noise levels, making it ideal for quiet environments.

Another key aspect is its lightweight and portable design. Weighing around 5.5 pounds, the Dell 2400MP is easy to transport, making it a practical choice for professionals who need to move between different locations. Its built-in security features, including a password lock, provide additional peace of mind for users.

In conclusion, the Dell 2400MP is a feature-rich projector that combines powerful performance with ease of use and portability. Its high brightness, solid resolution, diverse connectivity options, and long lamp life make it an excellent choice for anyone in need of a reliable multimedia presentation tool. Whether for business meetings, classrooms, or home use, this projector is equipped to deliver impressive results.
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