ILLUMINATION APPARATUS USING SUNLIGHT
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United States of America Patent
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Issued Date -
Dec 31, 2015
app pub date -
Jun 26, 2014
filing date -
Jun 26, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An illumination apparatus includes a sunlight guide member, a light emitting device, a wavelength converting element, a fiber-optic light guide connecting the light emitting device and the wavelength converting element, and a lighting control system for controlling the light emitting diode. The sunlight guide member is provided to guide outdoor sunlight to an indoor area. The light emitting device is provided for generating light having a first wavelength range along a beam path. The wavelength converting element is disposed in the beam path and physically separated from the light emitting device. The wavelength converting element converts the light emitted by the light emitting device with the first wavelength range into light having a second wavelength range. The lighting control system is configured to detect an intensity of the outdoor sunlight and to control radiance of the light emitting device according to the detected intensity of the outdoor sunlight.
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