24 Feb 2009    Bar Graph of Perceived Benefits of Full Spectrum Lighting Perceived Benefits of Full Spectrum Lighting by Lighting Professionals and Users         24 Feb 2009    Beat the winter blues "(She) was diagnosed by her doctor with seasonal affective disorder (SAD), a form of depression that goes well beyond just the "winter blues." The symptoms and effects are similar to depression but only reveal themselves in the fall and winter months.According to Mental Health America, women suffer from SAD three times more often than men, as do those in colder climates and people who work for extended periods without sunlight or work the night shift. The number 1 therapy most doctors recommend for SAD is exposure to sunlight or full-spectrum light (which simulates bright sunlight)."   6 Jun 2005    The Coming Revolution in Lighting Practice Many engineering and architectural texts contain an incorrect view of how the eye deals with light. In these texts one encounters the correct statement that our eyes have two types of photoreceptors, namely cones and rods, along with the erroneous statement that the cones are responsible for day vision and the rods responsible for night vision. Vision scientists have long known that this segregation of day and night vision is overly simplistic. Nevertheless, until some recent efforts by two pragmatic scientists, the significance of a better understanding of the workings of the eye for lighting practice and lighting energy efficiency had been entirely overlooked.