Published 01/05/2013

Diffuse Lighting Offers Multiple Benefits

Growers are increasingly learning that steering the greenhouse climate, which includes the related factors of light levels, temperature and humidity, can yield big gains in terms of plant quality and productivity as well as economic efficiency in heating and cooling expenses. Researchers, meanwhile, have been demonstrating that diffuse light plays an important role in achieving those goals. Materials have been developed to diffuse direct solar radiation, and use of diffuse light begins with an understanding of light and its behavior.

Solar radiation passes through the top of the atmosphere essentially unchanged by its passage through space. As it moves, it interacts with gas molecules, water droplets and aerosols and is gradually absorbed into the atmosphere. Radiant energy is converted into internal energy. It ceases to exist as radiant energy and heats the atmosphere directly...

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