Please browse our definitions glossary of Lighting, Audio & Production terms starting with L. It is constantly being expanded every day. If you would like to add a term to the glossary please send us an email as info@solarisnetwork.com
LASER is acronym for Light Amplified by Stimulated Emission of Radiation and is an optical source that emits photons in a coherent concentrated beam. There are many different kinds of LASERs producing many different colors, but red is the most common.
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A liquid crystal display is a low power, flat, thin display device made up of color or monochrome pixels arranged in front of a light source or reflector.
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An LED or light emitting diode is simply a tiny light bulb that fits into an electrical circuit. However, unlike ordinary bulbs, LEDs don't have a filament that will burn out and generate very little heat. They are illuminated by the movement of electrons in a semiconductor material and last as long as a standard transistor.
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A lens is a device for either concentrating or diverging light, usually formed from a piece of shaped glass. Analogous devices used with other types of electromagnetic radiation are also called lenses: for instance, a microwave lens can be made from paraffin wax.
The earliest records of lenses date to Ancient Greece, with Aristophanes' play The Clouds (424
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Lighting or stage lighting is a tool and art form in the production of theater, dance, opera and other performance arts. Several different types of stage lighting instruments are used in the pursuit of the various principles or goals of lighting ranging from simple illumination to mood setting. Lighting also applies architectural accents to add color or sha
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Lighting control consoles (also called lighting boards or lighting desks) are electronic devices used in theatrical lighting design to control multiple lights at once. They are used throughout the entertainment industry and are normally placed at the FOH position or in a control booth. All lighting control consoles can control dimmers which, in turn, control
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Lighting control consoles (also called lighting boards or lighting desks) are electronic devices used in theatrical lighting design to control multiple lights at once. They are used throughout the entertainment industry and are normally placed at the FOH position or in a control booth.
All lighting control consoles can control dimmers which, in turn, contro
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There are a variety of instruments frequently used in the theater. Although they vary in many ways they all have the following four basic components in one form or another...
* Box/Housing - a metal or plastic container to house the whole instrument and prevent light from spilling in un-wanted directions.
* Source of light (bulb or lamp).
* Lens or opening
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An early type of stage light in which an intense illumination is created when an oxyhydrogen flame is directed at a cylinder of lime, also called calcium oxide, which can be raised to white incandescence heat without melting to producing brilliant illumination. The limelight effect was discovered early in the nineteenth century by Goldsworthy Gurney. A Sco
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In physics, specifically photometry (optics), the lumen (symbol: lm) is the SI derived unit of luminous flux. It is the amount of light that falls on a unit spherical area at unit distance from a source of one candela. In steradians this is equivalent to the amount of light that falls on a unit solid angle from a light source of one candela. Alternatively, o
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The lux (symbol: lx) is the SI derived unit of illuminance or illumination. It is equal to one lumen per square metre.
The difference between the lux and the lumen is that the lux takes into account the area over which the luminous flux is spread. 1000 lumens, concentrated into an area of one square metre, lights up that square metre with an illuminance of
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