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Stage Lighting - Modern stage lighting is a flexible tool in the production of theatre, dance, opera and other performance arts. Several different types of lighting instruments are used in the pursuit of the various p. Used . rinciples or goals of lighting. . Used . ...

Wavelength - The distance from one point, usually the crest, on a vibrating wave to the same point on the next wave. The shorter the wavelength the higher the frequency and the more directional the wave and vice . Used . versa. Commonly designated by the Greek letter lambda (?), wavelengths are usually measured in Angstroms.. Used . ...

Subtractive Color - Subtractive color explains the theory of mixing paints, dyes, inks, and natural colorants to create colors which absorb some wavelengths of light and reflect others. The color that an object appears t. Used . o have is based on what parts of the electromagnetic spectrum are reflected by it, or conversely by what parts of the spectrum are not absorbed.

Anything that is not additive col. Used . or is subtractive color. No other color mixing systems are known, except the imperfect system resulting from mixing real pigments, something that is very confusing nowadays.

Color is not an absolu...

DMX-512 - DMX512, often shortened to DMX (Digital MultipleX), is a communications protocol used mainly to control stage lighting.

Developed by the Engineering Commission of USITT, the standard star. Used . ted in 1986, with subsequent revisions in 1990 leading to USITT DMX512/1990. ESTA took control of the standard in 1998 and began a revision process. The new standard, known officially as "Ent. Used . ertainment Technology — USITT DMX512–A — Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories", was approved by ANSI in November, 2004. This current standar...

Compression and Dynamics - Compression is the reduction of the dynamic range of a sound to avoid unintentional changes and increases in the amplitude. Compression is generally used to make an audio signal sound louder without i. Used . ncreasing its peak amplitude. By compressing or limiting the peak signals, it becomes possible to increase the overall volume of the signal without exceeding the dynamic limits of a device or. Used . medium. This causes quiet sounds to become louder, while louder sounds remain unchanged....

LED Video Screens

LED Screens are used in concerts to produce a video wall or concert video screen, so that the musicians and performers can be shown close up, and also for displaying background visuals during a performance. This type of visual display system is essentially a large number of LED screens which are tiled together or overlapped in a way so that they produce a much larger screen. Also called a video tile, LED screens will have extremely narrow bezels (the part which surrounds the LED screens), so that the display is not impacted too badly by having large gaps appear between each tile. Many concert planners prefer using LED screens to one large screen as they offer a number of advantages, including a customized layout, greater pixel density and a greater screen area for the cost, as manufacturing unusually large screens can be prohibitively expensive. LED screens use something called light-emitting diodes to illuminate the video screen. Two different types of panel are used in LED screens – discrete LEDs and surface mounted panels. Most types of outdoor LED video screen and indoor LED video screen use discrete LEDs, which are made up of a cluster of blue, green and red diodes. This cluster of diodes forms just one pixel in the LED screen, and so many hundreds of diodes are used, with the pixels being spaced out evenly across the entire screen. This combination of color clusters enables every color in the light spectrum to be replicated on LED screens.