| 摘要 |
<p>The present invention relates to a spectacle for the person to watch something close-up, of which the optical unit of the spectacles comprises of a lens and a certain number of prisms having bottom surfaces toward the nose integrally. The optical unit is made by informing integrally with molding optical thermoset or thermoplastic resin, hardening and coating film for anti-reflect. The power of the optical unit is showed by the diopter of lens D and diopter of prism Δ.</p> |
