Glossary

Dell 1210S manual Glossary

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.

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 (Hertz).

Hz (Hertz) — Unit of 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.

Maximum Distance — The distance from a screen the projector can be to cast an image that is usable (bright enough) in a fully darkened room.

Maximum Image Size — The largest image a projector can throw in a darkened room. This is usually limited by focal range of the optics.

Minimum Distance — The closest position that a projector can focus an image onto a screen.

NTSC — National Television Standards Committee. North American standard for video and broadcasting, with a video format of 525 lines at 30 frames per second.

PAL — Phase Alternating Line. A European broadcast standard for video and broadcasting, with a video format of 625 lines at 25 frames per second.

Reverse Image — Feature that allows you to flip the image horizontally. When used in a normal forward projection environment text, graphics, etc. are backwards. Reverse image is used for rear projection.

RGB — Red, Green, Blue — typically used to describe a monitor that requires separate signals for each of the three colors.

S-Video — A video transmission standard that uses a 4-pin mini-DIN connector

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.