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Some professional audio stores also sell sound recording equipment, DJ equipment, lighting equipment used in nightclubs and concerts and video equipment used in events, such as video projectors and screens. Some professional audio stores rent "backline" equipment used in rock and pop shows, such as stage pianos and bass amplifiers. While ...
Laser light shows fully emerged in the early 1970s and became a form of psychedelic entertainment, usually accompanied with a live musical performance on stage or pre-recorded music. The Who , Pink Floyd , Led Zeppelin , Genesis , and Electric Light Orchestra were among the first high-profile rock acts to use lasers in their concert shows in ...
Using only one laser beam and the 4 photodiode block, the servo knows if the track is centered by measuring side-by-side movement of the light of beam hitting on the block and corrects to keep the light on the center. The other design by Sony uses a diffraction grating to part the laser light into one main beam and two sub-beams.
Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. The height of the lines and bars gives an indication of the maximal power/pulse energy commercially available, while the color codifies the type of laser material (see the figure description for details).
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Symphony of lights in 2009. The show is organized by the Hong Kong Tourism Board and is displayed every night with good weather at 8 pm Hong Kong Time (UTC+8). An orchestration of music, decoration lights, laser light displays, and pyrotechnic fireworks, the multimedia light and sound show lasts for around 10 minutes and was conceptualized, created, and installed by LaserVision.
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