| 摘要 |
<p>Helmet (1) comprises a transparent visor (2) having a reading aid (3) formed as spectacle glass fixed to the visor using adhesive rings. Preferred Features: The spectacle glass is structured so that it touches the front surface in the inserted position. The optical middle points are fixed to the visor at a distance from the eye. The spectacle glass is positioned using a template.</p> |
