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Main Menu > 2: Energy From The Sun > EM Spectrum Cards > Visible Violet  
Visible Violet
Visible Violet
Wavelength: 0.42 microns
Energy per photon: 3 electron volts
Harmful Effects: Normally harmless, but can cause blindness or burn tissue at high intensity (from the Sun or a laser).

Emitted by:

  • The Sun
  • Light bulbs
  • Astronomical objects
The Sun
M57, the Ring Nebula in Lyra. Image courtesy of Nordic Optical
Telescope, La Palm.

Detected by:

  • Cameras (film or digital)
  • The human eye
  • Animal eyes
  • Astronomical detectors


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