John Ott (1909-2000) was an American banker, inventor, and chronobiologist best known for his work on the biological effects of full-spectrum light. He pioneered the field of photobiology, particularly the impact of artificial light on human health and plant growth.
Ott's early career was in banking, but he became increasingly interested in time-lapse photography, especially of plants. Through his observations, he noticed that the type of lighting used significantly affected plant development. This led him to experiment with different light sources and their effects on both plants and animals.
He theorized that the absence of the full spectrum of natural sunlight in artificial lighting was detrimental to health. Ott developed specialized lighting systems designed to mimic natural sunlight, which he believed could positively impact mood, energy levels, and overall well-being.
Ott's research and advocacy led him to become a proponent of full-spectrum lighting in schools and workplaces. He authored several books, including "Health and Light" and "Light, Radiation, and You," which popularized his ideas.
While Ott's theories about the specific health benefits of full-spectrum light remain a subject of ongoing scientific investigation and debate, his work contributed significantly to the understanding of the importance of light in biology and influenced the development of lighting technologies aimed at improving human health and well-being.