Category : Education
Light is a natural phenomenon, vital to our very existence, which we probably take for granted in every day life. But the quality and intensity of light around us totally affects our visual appreciation and understanding of our surroundings.
This adaptation is important because not only does the eye discriminate between different wavelengths of light with the sensation of colour, but it is also more sensitive to some wavelengths than others and this sensitivity alters between Photopic and Scotopic Vision.
Light emitted from a source or received by a surface is referred to as luminous flux, which is measured in Flux in Lumens (lm).