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| | Moving light - Wikipedia, the free encyclopedia |
 | | Circa 1987, the first computer-controlled robotic stage lighting fixtures, called moving lights or (erroneously) intelligent fixtures, began to gain widespread acceptance in the concert industry. |
 | | Moving light (Martin MAC 550) in a showroom of the Transparent Factory in Dresden, Germany |
 | | Usually relying on compact arc lamps as light sources, these fixtures use servo motors or, more commonly,stepper motors connected to internal devices to manipulate the light before it escapes the fixture's front lens. |
| en.wikipedia.org /wiki/Moving_light (335 words) |
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