The electromagnetic spectrum and light therapy – Activeforever Quasar MD Plus Advanced Light Therapy Device User Manual
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True
False
17. Both visible red and infrared wavelengths have been shown to produce at
least 24 positive changes at the cellular level.
True
False
40 Light Therapy has been in use for over 100 years.
True
False
The Electromagnetic Spectrum and Light Therapy
The Electromagnetic Spectrum is composed of various energy waveforms that
can be considered particles (Photons). Electromagnetic radiation is emitted by
the Sun, Light Bulbs, Fires or Heated Objects, Radio Transmitters, Microwave
Ovens, Lasers, LEDs (Light Emitting Diodes), etc. There are two theories of what
electromagnetic radiation consists of, Wave Theory and Particle Theory. For this
course we will only refer to the wave theory of light and use the words “light
energy” when the usage of Photons is indicated. We do this in order to avoid
confusion when the scientific data sometimes goes from one theory to the other
or when one particular theory suits observed phenomena best.
Electromagnetic radiation consists of many different wavelengths that are used
for different applications. The term “wavelength” refers to the length of a
sinusoidal wave from one point to the point where the wave begins to repeat
itself. This length is measured in meters. They range from very short
wavelengths such as Gamma Rays (1 to 1000 fm to very long radio waves at 1 to
1000 meters. Below is a description of the various waves and their usage.
NAME
WAVELENGTH
USED FOR
Radio Waves
1-1000 meters
Radio, TV
Micro Waves
2-1000mm (1mm=.001meter)
Radar, Ovens
Infrared Waves
700-2000nm (1nm=.000000001 meter)
Heating lamps
Visible Light
400-700nm
Illumination
Ultra Violet (UV)
1-400nm
Tanning lamps