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Canvas type movie screen l mobile movie screen l outdoor movie screen l mobile movie screen | film projection screen monopoly wholesale

The correct use of the movie screen

Influence of movie screen has produced several of the most important in film picture quality: brightness, color reduction and contrast and screen by potential flaws in the distraction. Acoustic performance of the screen loudspeaker system screen brightness level can particularly affect the picture ideal high-frequency loss is determined by reference to the world recognized the SMPTE standard.

Screen brightness depends on the audience see on a number of factors: the projection of the light, show light from the mirror through the lens and projection screen window glass to the loss of light and the reflected light from the screen. The modern cinema projector using xenon lamp (relative to the old lamp carbon technology) have different kinds of power, depending on the screen size is different, the xenon lamp power most multiplexes the 2 kW to 7 kW, the lamp power and light output is larger, but the xenon lamp cost is high power consumption is greater.

The screen is the main factor of the brightness of light reflected back to the viewer. White plastic curtain that light scattering, and the majority of light reflection to the ceiling and side wall is therefore lost. Known as the "gain" screen will be more light to return directly to the audience. Optical gain level and the reflection screen back, its measurement in accordance with the standard (with light reflection value of magnesium carbide plate 1). Commercial white plastic curtain reflectivity vary, but usually has according to the standard 0.8-1.0 reflectivity." Gain "screen may have 2 or more high gain level, but for the cinema screen according to the office of the size of the screen is usually best for 1.4-1.8. More than 11 meters wide screen using gain screen will usually have an income, the screen width of more than 14 meters is best to use a high gain (1.8) of the screen. High gain screen more than 1.8 gain will produce "hot" (i.e., the center of the screen looks bright).

Canvas type movie screen l mobile movie screen l outdoor movie screen l mobile movie screen | film projection screen monopoly wholesale

Now some theaters are the use of digital projection as 35 mm film screening options. Digital projectors the model can output up to 17000 lumens brightness. In digital projection of light output may not reach the brightness of traditional projector screen, so the width of more than 10 meters using gain screen will be earnings.

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