| 摘要 |
PURPOSE:To improve remarkably an effect for spectacles, especially sun glasses by bonding a material whose brightness is changed by electrical conducting action to the side or opposite side of an eye-ball of lenses for spectacles. CONSTITUTION:The material 1 whose brightness is changed due to the conducting action is adhered tc the lens of spectacles by an adhesive. When the spectacles for using the special lens are put on, a solar battery whose conducting action is generated by light is incorporated in spectacles under a bright circumstance, whereby the brightness of the lens becomes darker by conducting a battery generated by the solar battery. On the other hand, the conducting action is attenuated under a dark circumstance to brighten the lens, because the capacity of the solar battery does not display. |
