Light rechargeable type secondary battery unit and electrical equipment containing it

摘要

The light energy is to be utilized as the power source for a customary electrical equipment. A flexible photo-electric transducer 3 is arranged so as to be wound about a cylindrically-shaped winding core 2. When charging the storage battery 4, housed on the winding core 2, the photo-electric transducer 3 wound about the winding core 2 is pulled out to receive the light.