Definitions for "Coated optics"
Materials that are put onto high quality lenses to regulate how much light is reflected back into the lamp.
A number of materials are put onto quality lenses for various reasons. One main reason is to reduce the amount of light reflection back to the lamp, which affects the brightness of the projector. A quality coating can increase brightness by 15%.
A variety of materials are put on to high quality lenses for several reasons. One of the key reasons is to minimize the amount of light reflected back to the lamp, and the amount of ambient light that mingles with the focused light leaving t he lens. Generally good coatings can add 15% or more to the lenses brightness. Other coatings are used for filtering colors