Diameter (mm):

20.00 +/-0.3

Effective Focal Length EFL (mm):

17.50 @ 587.6nm

Numerical Aperture NA:

0.57

Back Focal Length BFL (mm):

12.40

Liba2000+

Focal Length Tolerance (%):

±7

Coating:

MgF₂ (400-700nm)

Coating Specification:

R_avg ≤ 1.75% @ 400 - 700nm

Centering (arcmin):

≤30

Surface Quality:

5/3 x 0.4; E 0.2

Clear Aperture CA (mm):

16.00

Edge Thickness ET (mm):

2.3

Center Thickness CT (mm):

8.30 +/-0.20

f/#:

0.88

Bevel:

Protective bevel as needed

Diameter of Asphere (mm):

20.0

Radius R₂ (mm):

117.5

Shape of Back Surface:

Convex

Type:

Condenser Lens

Wavelength Range (nm):

400 - 700

Conjugate Distance:

Infinite

Note:

Click here for more information on the ISO 10110 surface quality specification.

20mm Dia. x 17.5mm FL, MgF₂ Molded Aspheric Condenser Lens

Regulatory Compliance

產品系列說明

20mm Dia. x 17.5mm FL, MgF2 Molded Aspheric Condenser Lens

Regulatory Compliance

產品系列說明

20mm Dia. x 17.5mm FL, MgF₂ Molded Aspheric Condenser Lens