Supply BK7 Bi-concave Lens

11 Jun 2010

Supply BK7 Bi-concave lens BK7 Bi-concave lens EFL:5mm---1000mm Dia:4.0mm—400.0mm Material: BK7(H-K9L) S/D:40/20 Centration:<3arcmin Customer design

Substrate Material: BK7(H-K9L) Surface Figure: λ/10 at 633nm Surface Quality:40/20 or better Diameter Tolerance: +0.000″, -0.010″ Thickness Tolerance: ±0.010″ Focal Length Tolerance:±0.5% typical Centricity: ≤3 minutes or better Chamfer: 0.02″at 45°typical