| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power feeding structure of spectacles that does not require a time and labor for battery exchange, eliminates the need of a dedicated replacement battery, and free from possible electrode corrosion. <P>SOLUTION: A power feeding structure 10 comprises a liquid crystal shutter 50, spectacles 30 having a drive mechanism of the liquid crystal shutter 50, and a cradle (power feeder) 12. A primary coil 20 for power transmission is arranged inside the cradle 12. Meanwhile, the spectacles 30 comprise: a secondary battery 74 which supplies power to the liquid crystal drive mechanism; a secondary coil 60 for power reception which causes electromagnetic induction with the primary coil 20; a rectification unit 70 which rectifies an AC voltage generated in the secondary coil 60 to a DC voltage; and a control unit 72 which controls the DC voltage obtained as a result of rectification and supplies it to the secondary battery 74. By exploiting the electromagnetic induction, it is possible to charge the secondary battery 74 only by mounting the spectacles 30 on the cradle 12, without requiring battery replacement or a dedicated battery. In addition, the spectacles 30 are free from possible corrosion on the electrodes because they do not come into contact with a user. <P>COPYRIGHT: (C)2012,JPO&INPIT |
