TopTechnical DictionaryOptical wavelength

Optical wavelength

Optical radiation is an electromagnetic wave. The waves at different lengths contribute to the radiation spectrum and the separated wavelengths form a range. In other words, the wavelength is a distance between two recurring wave elements - Fig. 1.

 

Optical radiation can be classified as:

 

- infrared

- visible

- ultraviolet

The following optical wavelengths correspond to each range:

 

infrared

780 - 1 000 000 nm

visible

380 - 780 nm

ultraviolet

10 - 380 nm

Fig. 2. Visible radiation spectrum with optical wavelength corresponding to a specific colour

 


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