This plano lens is perfectly polished for a smooth rim and fine surface with minimum blemish. The optical lens offers protection and filtering functions, which can be applied to cover reflecting mirrors, dichroic mirrors, projectors and DVD products.

• Surface accuracy: N≤3, △N≤1.
• Surface blemish: B≤20-10.
• Dimension tolerance: T≤abs (±0.05).
• Shaping tolerance parallel degree: T≤5.