Diameter (mm):

25.40 +0.00/-0.13

Effective Focal Length EFL (mm):

500.00 @ 10.6µm

Zinc Selenide (ZnSe), CVD Grade

f/#:

19.69

Numerical Aperture NA:

0.03

Coating:

BBAR (8000-12000nm)

Type:

Plano-Convex Lens

Wavelength Range (nm):

8000 - 12000

Back Focal Length BFL (mm):

496.87

Bevel:

Protective bevel as needed

Center Thickness CT (mm):

2.10 ±0.20

Centering (arcmin):

<3

Clear Aperture CA (mm):

22.86

Coating Specification:

R_avg <0.5% @ 8 - 12µm
R_abs <1% @ 8 - 12µm

Edge Thickness ET (mm):

2.00

Focal Length Tolerance (%):

±2

Model Number:

AR812-ZC-PX-25-500

Radius R₁ (mm):

698.17

Surface Quality:

60-40

Irregularity (P-V) @ 10.6μm:

λ/20

25.4mm Dia. x 500mm FL, 8-12µm AR Coated, ISP Optics Zinc Selenide (ZnSe) PCX Lens | AR812-ZC-PX-25-500

Protect your investment.