There are many different kinds of projector on the market so finding the device which meets your needs can seem a daunting task. This guide covers the basics and will hopefully clear things up.

Different Projector Types

A video-projector is a device which projects a video signal from a computer or home theatre system onto a screen. A movie projector on the other hand, projects moving images from old fashioned film-strip. Slide projectors show still images such as photographs and overhead projectors are used for still transparent images, printed or hand-written onto acetate sheet.

The most useful type of projector these days, is the video-projector which can be connected to laptops, home computers and other devices to show Microsoft PowerPoint Presentations, be used to play computer and console games and also used to watch footage such as feature films and sports games.

Benefits

There are numerous benefits to using a video-projector, the first obvious benefit being screen size because projectors can be used in conjunction with a plain white screen or a bare wall and images can be as large as the device allows. The second clear benefit is versatility, video-projectors are usually compact and can be carried around; they can be used in a multitude of different places and ways.

Advancements in technology mean most modern video-projectors offer outstanding digital image quality with high brightness, contrast and rich colours. Buying a projector is also increasingly affordable, especially in comparison to flat screen televisions.

Resolution

The best resolution for your projector is the same as the computer you intend on using it with, so if you usually use a laptop check the specifications for whatever you`d like to project. Many projectors available these days can project a variety of resolutions, but sometimes there can be a loss of sharpness if your computer and projector don`t match up.

Aspect Ratio


The aspect ratio refers to the height and width of the projected image. Some modern projectors can support an array of different aspect ratios. For wide screen movies and shows, you`ll need an aspect ratio setting of 16:9. This is the setting for High Definition TV and many feature films look better when viewed in this aspect. 4:5 is the standard aspect ratio for TV.

LCD Versus DLP

LCD and DLP projectors use light differently. LCD projectors often display a brighter image and are more common for home cinema use. Using LCD screens for longer than 8 or 10 hours a day can damage them, though. DLP Projectors use patented technology from Texas Instruments, and a sophisticated system involving light valves and colour wheels. Generally, these projectors are more expensive and surpass most people`s needs.

Lamp Hours

Projector lamps suffer wear and tear over time a dim over the years rather than burning out all of a sudden. Most lamps are designed to last 1,000 hours these days but leaving your projector on unnecessarily can shorten the lamp`s lifespan and melt important components.

Data and Video inputs

Most modern projectors accept computer, video and audio inputs. Some projectors also accept component video inputs and can connect directly with DVD players, digital VCRs and HDTV tuners.

Sound

Finally, buying wireless speakers can really improve any home cinema system as they offer real versatility.