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The source of illumination for a cinema projector is

  • The source of illumination for a cinema projector is Carbon Arc lamp.
  • Carbon Arc lamps work by creating an arc of electricity between two carbon electrodes.
  • This arc produces a bright light that can be used to project images onto a screen.
  • They require regular maintenance, as the electrodes need to be frequently replaced, and they produce a lot of heat and noise, which can be problematic in a cinema setting.
  • Today, most cinemas use xenon lamps or digital projectors. Xenon lamps are similar to Carbon Arc lamps in that they produce a bright light by creating an electrical arc, but they are more efficient and produce less heat and noise.