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 emitted 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 kind 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.

Glossary

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Dell 4610X manual Appendix Glossary

4610X specifications

The Dell 4610X is a versatile and high-performance projector specifically designed for business and educational environments. This projector stands out for its impressive brightness and clarity, making it suitable for a wide range of settings, from small conference rooms to large auditoriums. With advanced features and technologies, the Dell 4610X ensures a seamless presentation experience.

One of the standout characteristics of the Dell 4610X is its brightness, rated at 5000 ANSI lumens. This powerful output allows for vibrant and clear images, even in well-lit environments. This feature is essential for professionals who need to present in varying light conditions without compromising image quality. The high contrast ratio further enhances the viewing experience by delivering sharp, detailed visuals and vivid colors, ensuring that presentations stand out.

The Dell 4610X utilizes DLP (Digital Light Processing) technology, which is known for its reliability and longevity. DLP projectors are less prone to color decay over time compared to other technologies, and they typically offer better performance when it comes to fast-moving images. This makes the 4610X ideal for multimedia presentations which may include video content, providing smooth and fluid motion.

Another notable feature of the Dell 4610X is its extensive connectivity options. The projector comes equipped with HDMI, VGA, and USB ports, allowing users to connect a variety of devices including laptops, tablets, and media players effortlessly. The option for wireless connectivity is also available, enabling easy screen mirroring from mobile devices, which is particularly useful for users who prefer to present without the hassle of cables.

In terms of user-friendliness, the Dell 4610X includes an intuitive navigation system and remote control that simplifies the setup process. It is lightweight and portable, making it easy to transport between different locations. Additionally, the projector features a long lamp life, reducing maintenance costs and time spent on replacements—an important consideration for busy professionals.

Finally, the Dell 4610X is designed with environmental considerations in mind. It meets energy efficiency standards, allowing for reduced power consumption, which appeals to organizations seeking sustainable technology solutions.

Overall, the Dell 4610X is a robust and efficient choice for anyone in need of a reliable projector that combines high performance with practicality and ease of use. Its array of features makes it a valuable asset for corporate presentations, outreach programs, and educational purposes.