What are digital projectors?
digital projectors are a modern replacement for the traditional transparency of projectors. Transparency projectors work through bright light through semi -transparent material such as films or film. On the other hand, the digital image projects the digital image directly from the computer via the lens to the screen. Four technologies can be used in these types of projectors. They used an oily surface on a rotating disk with light glowing through it and used the electron beam to disrupt the oil in a very accurate way. Although Eidofor projectors were a very primitive form of the projector, they were still able to produce color images. However, due to much simpler, cheaper and higher faithful devices, Eidophor projectors are no longer used. There are three main conffigurations for CRT projectors: The projector can have one RGB (red, green and blue) tube with a single lens, one black and white tube with rotating colored wheels or three RGB colored tubes with three lenses. In all these configurations withE creates a relatively small size from six to twelve inches (15-30 cm) and then increases the lens to a large screen. These devices are relatively bulky and heavy, so they are especially suitable for fixed areas.
Digital projectorsliquid crystals (LCDs) are much lighter and more portable than their CRT cousins, which is very popular. With the advent of new LCD technologies, digital projectors have been developed, which have very clear and fresh loyalty even in a large size of projection. The LCD used in these machines are approximately the size of a small color slip, and in fact, projectors work very much like atradic slide. The main difference is that the film is constantly changing.
CRT and LCD projectors are known as transitative projectors, which means that light shines through the image to project it. However, there is another class of digital projectors known as reflective processesktors that provide much higher image quality.
Texas instruments produces a chip for a single currently viable reflective digital projector using technology known as DLP (Light Digital Processing). They have a number of small mirrors, one for each pixel. Since these mirrors are moved to put both light on the screen or not, they create shading that creates the illusion of a complete image. DLP technology is used in theaters when they make a transition to digital projectors, thanks to their extremely high quality and loyalty and lack of pixilation even at high image sizes.