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.

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Glossary

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Dell 1210S manual Appendix Glossary
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1210S specifications

The Dell 1210S is a compact and efficient projector designed for an array of presentation environments. Renowned for its portability, the 1210S is ideal for business professionals, educators, and anyone who requires a reliable device for on-the-go presentations or in fixed settings. Its lightweight design makes it easy to transport, allowing users to easily carry it in a bag or briefcase without added bulk.

One of the standout features of the Dell 1210S is its brightness, offering up to 3000 ANSI lumens. This high brightness ensures that images remain clear and vivid, even in well-lit rooms. Whether you are projecting during the day or in artificial lighting, the 1210S delivers picture quality that captivates audiences. Additionally, the projector boasts a 2000:1 contrast ratio, which enhances the differentiation between light and dark areas in images, providing sharp details for presentations.

The native resolution of the Dell 1210S is SVGA (800 x 600), which is suitable for standard presentations. However, it supports multiple video formats, allowing it to project content from various sources effortlessly. It also includes features like auto keystone correction that adjusts the image automatically when the projector is set up at an angle, ensuring a perfect picture every time.

The Dell 1210S employs DLP technology, known for its reliability and longevity. This technology produces vibrant colors and consistent image quality with minimal degradation over time. The projector has a lamp life of up to 3000 hours in standard mode, meaning users can rely on it for prolonged use without frequent lamp replacements.

Connectivity options are robust, featuring VGA, S-Video, composite video, and USB ports, which allow the Dell 1210S to connect to a wide range of devices, including laptops, DVD players, and document cameras. This versatility enhances its usability across different settings, whether it's a classroom, boardroom, or conference hall.

Finally, the operational noise level is minimal, rated at approximately 34 dB, enabling it to run quietly in the background while presentations are in full swing. The combination of efficiency, connectivity, and image quality makes the Dell 1210S a solid choice for anyone seeking a dependable projector for professional or educational use.
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