EuroLED® Touch M

Red Light and Night Vision

 

The human eye contains two types of receptors, rods and cones. Both have an increased sensitivity to frequency bands at different ends of the visual spectrum. Rods are largely responsible for our daytime and color vision and have an increased sensitivity towards the red band of the visual spectrum. In contrast cones are responsible for our night vision capability and have an increased sensitivity towards the blue, shorter wavelength band of the visual spectrum. For this reason red light helps to preserve our night vision as it will not affect the sensitivity of the cones.