CRT PROJECTORS• Uses three small, High Brightness CRT (Cathode Ray Tube) to generate image.• Each CRT generates either Blue, Green, or Red Images.• Image is focused and enlarged by a lens in front of CRT face.
LCD PROJECTORS• A beam of high-intensity light travels through thousands of shifting pixels in an LCD display instead of through a frame of translucent film.• The light splits into three hues, then travels through three LCDs before recombining in a prism to generate the crisp, colorful image projected on the screen.
DLP PROJECTORS• A data projection technology from Texas Instruments that produces clear, readable images on screens in lit rooms. DLP is used in all types of projection devices, from data projectors that weigh only a few pounds to large rear-projection TVs to electronic cinema projectors for movie theaters.
Projection Methods Rear View Front View Images are projected A display system that and reflected onto the projects an enlarged screen from behind the television picture on the screen, unlike front surface of a traditional video and reflective screen. film projection in which A good example of this the projector itself is would be a simple placed in front of the Cinema movie screen, such as in a projector movie theater.
Lumens/ Throw/Lamp• Lumens is a type of unit of measurement that allows people to determine the amount of light being emitted by a projector• Throw in film terminology is the distance of a movie projector from the screen- it is the distance the image is thrown onto the screen• Lamp is the light bulb inside of the projector