01.Introduction
10 Three kinds of lens functions RS 2PL
PC material accurate optical lens. Nearsighted in 600 power (-6.0) below. Tolerance ±6 (±0.06) within. Nearsighted in 650 power (-6.5) above. Tolerance ±12 (±0.12)within. Not easy to break. UV light and ultraviolet light resistant. Best anti-fog effect.