What Is Light and Why It Is Important

Vision provides us with most of the information that we rely on to survive, and vision would not be possible without light. Light is the stimulus for vision. The receptors in the eye only respond to electromagnetic energy between 380 nanometers (nm) and 760 nanometers (nm). The difference between x-rays, radio waves, UV, IR and visible light is their wavelength. When light travels through a prism the speed at which it travels slows down and the light waves are bent and refracted at different angles so the light emerges as a fan of different colors. What we see as colors are the colors in the light. A blue wall is blue because the light source contains wave lengths in the blue part of the spectrum.


Since light is such an important factor in all our lives it is essential that the environments that are created by lighting designers must allow the eyes to function at optimum levels for the psychological and general well being of the inhabitants. That is the reason you must take control of your lighting. Learn as much as you can about proper lighting so that you will be able to direct the installation of that lighting. But if you do not want to take the time to do that, hire a trained lighting professional to represent your interests. Get the lighting you want and need. The difference between good and bad lighting is huge and will impact your life for years. Budgets are tight, but do not skimp on the lighting...it is what enables you to enjoy everything else in your house. 

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