To understand what this is you need to be familiar with the wavelength. The wavelength of the laser determines its colour. The visible colour wavelength ranges from 380 to 750 nano meters. The infrared laser has a wavelength above 750 which is actually not visible to us. Your TV remote control actually uses Infrared light to communicate with the TV.
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hophappy commented on :
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Samer commented on :
To understand what this is you need to be familiar with the wavelength. The wavelength of the laser determines its colour. The visible colour wavelength ranges from 380 to 750 nano meters. The infrared laser has a wavelength above 750 which is actually not visible to us. Your TV remote control actually uses Infrared light to communicate with the TV.