Diameter (mm):

25.00 +0.000 / -0.025

Effective Focal Length EFL (mm):

50.00 @ 355nm

Numerical Aperture NA:

0.25

Back Focal Length BFL (mm):

45.1

Fused Silica

Asphere Figure Error, RMS @ 632.8nm:

λ/2 RMS and 2.5λ PV

Coating:

355 V-Coat

Coating Specification:

R_abs <0.25% @ 355nm @ 0° AOI

Surface Quality:

20-10

Clear Aperture CA (mm):

22.5

Edge Thickness ET (mm):

3.82

Center Thickness CT (mm):

7.20 +0.000 / -0.10

f/#:

2

Bevel:

Protective bevel as needed

Shape of Back Surface:

Plano

Conjugate Distance:

Infinite

7.5 J/cm² @ 355nm, 20ns, 20Hz

Slope Error Aspheric Side:

0.35μm/mm per 1mm Window

Beam Deviation @ 587.6nm (arcmin):

<2.5

Power (diopters):

20.00

25mm Dia. x 50mm EFL, 355nm V-Coat, Precision Laser Aspheric Lens