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Home >> Infiniti >> 2011 >> G37 IPL, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Exterior Lighting System -- G37 Coupe >> DTC/Circuit Diagnosis >> Xenon Headlamp >> Description >> Illumination Principle

Illumination Principle

  1. Discharging starts in high voltage pulse between bulb electrodes.
  2. Xenon gas is activated by current between electrodes. Pale light is emitted.
  3. The luminous tube (bulb) temperature elevates. Evaporated halide is activated by discharge. The color of light changes into white.
    NOTE:
    • Brightness and the color of light may change slightly immediately after the headlamp turned ON until the xenon bulb becomes stable. This is not malfunction.
    • Illumination time lag may occur between right and left. This is not malfunction.
      Fig 1: Xenon Headlamp Structure
      G05372332Courtesy of NISSAN MOTOR CO., U.S.A.
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