| 摘要 |
<p>Spectacles are inserted in a motorcycle helmet to serve as vision aid, in which the helmet and spectacles can be simultaneously put on and removed. The move follows that between the padding and the outer shell of the helmet, a stop is inserted on the left and right sighting aperture into which spectacle glass with special frame can be inserted, and with this enables the spectacles to be cleaned and easily removed and can be exchanged for another viewing strength.</p> |
