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Individuals with high critical flicker fusion threshold are particularly affected by light from fluorescent fixtures that have magnetic ballasts: their EEG alpha waves are markedly attenuated and they perform office tasks with greater speed and decreased accuracy. The problems are not observed with electronic ballasts. [9]
A light fixture (US English), light fitting (UK English), or luminaire is an electrical lighting device containing one or more light sources, such as lamps, and all the accessory components required for its operation to provide illumination to the environment. [1] All light fixtures have a fixture body and one or more lamps.
A pendant made from modern dichroic glass. Dichroic glass is glass which can display multiple different colors depending on lighting conditions.. One dichroic material is a modern composite non-translucent glass that is produced by stacking layers of metal oxides which give the glass shifting colors depending on the angle of view, causing an array of colors to be displayed as an example of ...
Auto-yokes" are often promoted as a way to modernize and increase the flexibility of an inventory of lighting fixtures at a reduced cost to replacement with intelligent lights. Generally, moving mirrors are faster at adjusting a lights position than moving head fixtures; however, moving-heads-style fixtures have a far larger total range of ...
The A-series light bulb is the "classic" glass light bulb shape that has been the most commonly used type for general lighting service (GLS) applications since the early 20th century. It has a pear-like shape and is typically fitted to either an Edison screw or a bayonet cap base.
Glass gobos can also include colored areas (much like stained glass windows), whether by multiple layers of dichroic glass (one for each color) glued on an aluminium or chrome-coated monochrome gobo, or by newer technologies that vary the thickness of the dichroic coating (and therefore the color) in a controlled way on a single piece of glass ...
Related: Clay Aiken 'Left Music' 10 Years Ago.How Recording a New Christmas Album 'Opened' His 'Eyes' Again (Exclusive) "Back then it was a big deal," says Aiken, who recently marked his return to ...
Usage includes theatrical lighting, locomotive headlamps, aircraft landing lights, and residential and commercial recessed lights ("cans" in the United States). Many PAR lamps are of the sealed beam variety, with a parabolic reflector , one or more filaments , and a glass or plastic lens sealed permanently together as a unit.
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