Cambridge IGCSE™ Computer Science - Chapter 1 to 6 Notes

» this beam of light is then sent to a group of chromatic-coated mirrors (known as dichromic mirrors); these reflect the light back at different wavelengths

- when the white light hits these mirrors, the reflected light has wavelengths corresponding to red, green and blue light components

-these three different coloured light components pass through three LCD screens (each screen is composed of thousands of tiny pixels which can either block light or let it through; this produces a monochromatic image)...

» ... consequently, three different versions of the same image are now produced – one is the whole image in different shades of red, one is the whole image in different shades of green and one is the whole image in different shades of blue

» these images are then re-combined using a special prism to produce a full colour image » finally, the image passes through the projector lens onto a screen.