| abstract |
A driving circuit for the optical element, a power supply for driving the optical element, a pair of rims for supporting at least one of the optical elements, a front end portion and a rear end portion for supporting at least one of the optical elements, A pair of temples having rear ends and connected to the pair of rims and the front end portion respectively and a pair of modern portions formed respectively at rear ends of the pair of temples, A secondary battery, and a power receiving coil for charging the secondary battery, wherein the case of the secondary battery is formed of a non-magnetic material. |