Abstract: For good health, exposure to a variety of wavelengths is needed. A balance in the exposure from day to day and throughout the year is necessary. Avoidance of overexposure by having moderation in the exposure is essential to prevent skin cancer and other disorders. The present invention can enhance the probability for good health and reduce the risk of diseases associated with solar radiation exposure and diet for those person with deficient, excess or non-balanced exposure and diet. A key feature of the invention is the use of whole body exposure when possible. This enables the use of very low irradiances for short periods. This results in an overall reduction in the risk of skin cancer. Several techniques are included to increase the UV-B exposure.

Abstract: A method to improve the probability for good health and decrese the risk of cancer and disease comprising: controlling the indoor spectral radiation environment partial body exposure in an amount above 0.06 MED, but not exceeding 0.2 MED per day by irradiating the body with an artificial light source.

Abstract: For good health, exposure to a variety of wavelengths is needed. A balance in the exposure from day to day and throughout the year is necessary. Avoidance of overexposure by having moderation in the exposure is essential to prevent skin cancer and other disorders. The present invention can enhance the probability for good health and reduce the risk of diseases associated with solar radiation exposure and diet for those person with deficient, excess or non-balanced exposure and diet. A key feature of the invention is the use of whole body exposure when possible. This enables the use of very low irradiances for short periods. This results in an overall reduction in the risk of skin cancer. Several techniques are included to increase the UV-B exposure.

Abstract: In accordance with the present invention, a vehicle roof with adjustable light transmitting sections to control the interior spectral radiation environment, including at least one first section for high ultraviolet transmission; and, at least one second section for high transmission of visible and infrared light while blocking part of the ultraviolet radiation; a frame to hold said first and second sections in place; and means for positioning said sections relative to each other. In another embodiment a third section is provided with differing spectral transmission than said first and second sections is provided together with means for moving said third section relative to said first and second sections.

Abstract: This invention relates to methods and apparatus to control the light exposure of the skin. One objective is to increase the exposure during periods of common deficient exposure such as for dark skin persons on winter days in areas far from the equator. Another objective is to decrease the exposure during periods of common overexposure such as for light skin persons during spring and summer days in bright environments. A novel feature of the invention is the use of lamps for whole body irradiation while showering or bathing during dark seasons. The whole body exposure enables the use of very low irradiance levels to provide an enhanced probability of beneficial effects and to reduce the possibility of harmful effects of the ultraviolet light. Another novel feature is the use of an adjustable ultraviolet light transmitting building window or automobile sunroof to increase the sunlight exposure on cold days when a deficiency in exposure due to closed windows is common.

Abstract: A method to improve the probability for good health and decrease the risk of cancer and disease comprising: controlling the indoor spectral radiation environment partial body exposure in an amount above 0.06 MED, but not exceeding 0.2 MED per day by irradiating the body with an artificial light source.

Abstract: A method to improve the probability for good health and decrese the risk of cancer and disease comprising: controlling the indoor spectral radiation environment partial body exposure in an amount above 0.06 MED, but not exceeding 0.2 MED per day by irradiating the body with an artificial light source.

Abstract: This invention relates to methods and apparatus to control the light exposure of the skin. One objective is to increase the exposure during periods of common deficient exposure such as for dark skin persons on winter days in areas far from the equator. Another objective is to decrease the exposure during periods of common overexposure such as for light skin persons during spring and summer days in bright environments. A novel feature of the invention is the use of lamps for whole body irradiation while showering or bathing during dark seasons. The whole body exposure enables the use of very low irradiance levels to provide an enhanced probability of beneficial effects and to reduce the possibility of harmful effects of the ultraviolet light Another novel feature is the use of an adjustable ultraviolet light transmitting building window or automobile sunroof to increase the sunlight exposure on cold days when a deficiency in exposure due to closed windows is common.

Abstract: This invention relates to methods and apparatus to control the light exposure of the skin. One objective is to increase the exposure during periods of common deficient exposure such as for dark skin persons on winter days in areas far from the equator. Another objective is to decrease the exposure during periods of common overexposure such as for light skin persons during spring and summer days in bright environments. A novel feature of the invention is the use of lamps for whole body irradiation while showering or bathing during dark seasons. The whole body exposure enables the use of very low irradiance levels to provide an enhanced probability of beneficial effects and to reduce the possibility of harmful effects of the ultraviolet light. Another novel feature is the use of an adjustable ultraviolet light transmitting building window or automobile sunroof to increase the sunlight exposure on cold days when a deficiency in exposure due to closed windows is common.