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Ambulant recording of light for vision and non-visual biological effectsETH Zurich, Center for Organizational and Occupational Sciences, Environmental Ergonomics, Zurich, Switzerland, shubalek{at}ethz.ch
Ingenieurbuüro Zöschg, St. Pankraz, Italy
ETH Zurich, Center for Organizational and Occupational Sciences, Environmental Ergonomics, Zurich, Switzerland Data on the exposure of the human eye to light are essential for investigation into the interaction of light with man. According to present knowledge, two different spectral sensitivities of the visible irradiance are relevant: (1) the spectral luminous efficiency function for vision and (2) the action spectrum for melatonin suppression, also used for other non-visual biological effects. We developed a device called LuxBlick to measure and record both quantities. It consists of two light sensors that are fixed on the wearers head, and a control unit and data recording mini-computer worn in a bag around the waist. Real-time data are accessible to those wearing the device. Suitable to be worn in everyday life, the parts at the head are of low mass at the head and inconspicuous.
Lighting Research and Technology, Vol. 38, No. 4,
314-321 (2006) |
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