Uses of Projectors
Projectors are effectively used for delivering lectures and presentations to small and large groups, as well as watching movies and other videos at a backyard home theater. They can be found in various environments, classrooms, conference rooms, homes and yards.Projectors range in different size and capabilities, from handheld devices that need a dark room to deliver a viewable image to high-powered devices that are easily read, even in brightly lit offices. There are many makes and models in the market today. For consumers who prefer to online shopping, sites like eBay are excellent options.
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| LCD, LED and DLP Projectors |
Technology used in LCD, LED and DLP Projectors
The technologies used in projectors can generally are of two types: transmissive or reflective.As LCD projectors emit light through the LCD panels rather than bouncing it away, they are considered a transmissive medium.
LED projector, is named for the light source, not the type of projection technology.
A DLP projector uses mirrors to direct the light in an image, so it is considered to be reflective.
Factors to consider while choosing the Projectors
| Projector Type | Technology Type | Light Source |
|---|---|---|
| DLP | Reflective | LED or standard lamp |
| LCD | Transmissive | Standard lamp |
| LED | Transmissive or reflective | LED |
Summary
LCD and DLP projectors use a different kind of projection technology and each works better in different environments. Whereas an LCD projector uses transmissive liquid crystal display panels that let light pass through, then combine the images into a prism and projects it through the lens, a DLP projector uses a reflective chip made up of millions of microscopic mirrors, each capable of independent movement, to bounce light through a lens that then projects the image. LED projectors, on the other hand, are defined by the light source, not the projection technology.Instead of a traditional halogen lamp, they use light-emitting diodes, which are more environmentally-friendly and longer lasting. LED projectors to use either DLP technology, replacing the color wheel and white-light lamp with red, blue, and green LEDs, or LCoS technology, which is found in handheld projectors. We help you find the best kind of projector and screens that you require for different events and conferences.
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