Photovoltaic cell device with switchable lighting/reflection
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United States of America Patent
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Feb 27, 2018
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app pub date -
Mar 10, 2011
filing date -
Mar 16, 2010
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Abstract
The present invention relates to a photovoltaic cell device with combined energy conversion and lighting option and a method a controlling such a device. It comprises a responsive element, a reflector or a light source for changing light absorption and thus appearance of photovoltaic cells (e.g. solar panel). It is also possible to combine the responsive element or the reflector with light source(s) providing extra illumination. When combined with a sensor and control unit, ambient intelligent solar panels and ambient intelligent lighting systems can be obtained. A combination of a luminescent solar concentrator (LSC) and light-emitting device is also possible, where an energy storage device is charged by a photovoltaic cell upon irradiation. The energy storage powers one or more light sources which are coupled to the sides of the luminescent plate. The light emitted by the light sources is coupled into the plate and (partly) converted by the luminescent plate. This results in a plate that homogeneously emits light.
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