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Light Reflectance Value — Light Reflectance Value, or LRV, is a measurement commonly used in interior decorating and design, which expresses the percentage of light that is reflected from a surface.LRV is frequently included on the backs of paint chips or samples and is… … Wikipedia
Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution … Wikipedia
Light fixture — This article is about architectural light fixtures. For stage lighting, see Stage lighting instrument. Many various light fixtures A light fixture, light fitting, or luminaire is an electrical device used to create artificial light and/or… … Wikipedia
light fixture — An instrumentality affixed to the ceiling or wall of a building, through which insulated wires carrying electricity are run and to which bulbs for illumination are fastened. The authorities are conflicting as to whether gas and electric light… … Ballentine's law dictionary
Light Data Transmission — attempts to transfer information using visible light.The Visible Light Communications Consortium are proposing using light emitting diodes to turn ordinary household fixtures such as light bulbs, televisions, or even flashlights into data… … Wikipedia
Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr … Wikipedia
Light switch — A light switch is a switch, most commonly used to operate electric lights, permanently connected equipment, or electrical outlets.In modern homes most lights are operated using switches set in walls, usually 6 10 inches (15 25 cm) away from a… … Wikipedia
Light board operator — In the performing arts and stagecraft, the Light Board Operator is the technician in charge of operating all lighting equipment for a performance, with the possible exception of the spotlights/follow spots, which are usually handled by one or… … Wikipedia
Recessed light — A recessed light or downlight (also pot light in Canadian English, sometimes can light [for canister light] in American English) is a light fixture that is installed into a hollow opening in a ceiling. When installed it appears to have light… … Wikipedia
tungsten light — Light from regular room lamp and ceiling fixtures, not fluorescent … Forensic science glossary
Incandescent light bulb — The incandescent light bulb, incandescent lamp or incandescent light globe is a source of electric light that works by incandescence, (a general term for heat driven light emissions which includes the simple case of black body radiation). An… … Wikipedia
