A PORTABLE LIGHTING DEVICE

摘要

The present invention may provide a solar powered portable lighting device configured to be separable mechanically and optically into two or more parts ( 102, 104 ) and a method for operating the lighting device. The lighting device may be equipped with at least a power management unit ( 106 ) for at least one of controlled charging and discharging of the lighting device, a lighting unit ( 114 ) for illumination that may be powered by the power management unit ( 106 ) and an optical assembly for adjusting at least one of optical parameters of the illumination.