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Laser light is useful in entertainment because the coherent nature of laser light allows a narrow beam to be produced, which allows the use of optical scanning to draw patterns or images on walls, ceilings or other surfaces including theatrical smoke and fog without refocusing for the differences in distance, as is common with video projection ...
This was a projection-style DJ light that used a halogen lamp and a mirror to reflect the light. A halogen lamp shines onto a mirror via a filter gel sheet to create the color and sometimes via a gobo wheel to create shapes. In some DJ lighting effects a coloured mirror is used to avoid using color/filter gel.
It was founded in August 1986. ILDA sponsors an annual conference and the annual ILDA Awards for artistic and technical achievement in laser shows and displays. [citation needed] While increasing public awareness of laser light shows, the ILDA is also an association that provides a base for laser display companies.
The earliest players employed gas helium–neon laser tubes to read discs and had a red-orange light with a wavelength of 632.8 nm, while later solid-state players used infrared semiconductor laser diodes with a wavelength of 780 nm. In March 1984, Pioneer introduced the first consumer player with a solid-state laser, the LD-700.
An illuminated dance floor, LED dance floor or disco dance floor is a floor with panels or tiles that light up in different colours. They are used for dance. They are used for dance. They were popularised for disco by the 1977 film Saturday Night Fever , which itself was inspired by a floor that director John Badham had seen at "The Club ...
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