Light
This picture shows the relationship between the visible light and wave length in units of nanometer.
Wavelength
• The light energy (E) can be calculated by the formula E=a (constant)/wavelength, and the shorter
the wavelength, the higher the energy.
• The red laser light is used for the CD/DVD laser light source and optical receivers.
• Blue laser light is used for the Blu-ray Disc laser light source and optical receivers.
7. Detailed Description
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