| 释义 |
safety lens safe·ty lensa lens that meets government specifications of impact resistance; the increased impact resistance required for safety lenses is obtained by tempering, by an ion-exchange process, or by using laminated or plastic lenses.safe·ty lens (sāf'tē lenz) A lens that meets government specifications of impact resistance; the increased impact resistance required for safety lenses is obtained by tempering, by an ion-exchange process, or by using laminated or plastic lenses. |