E-49-312 6.25mm Dia. x 60mm FL, VIS-NIR Coated, Achromatic Lens

Fosco Connect Part No.: E-49312

E-49312 6.25mm Dia. x 60mm FL, VIS-NIR Coated, Achromatic Lens

Diameter (mm): 6.25 +0.0/-0.025

Effective Focal Length EFL (mm): 60.00

Focal Length Tolerance (%): ±2

Back Focal Length BFL (mm): 58.46

Focal Length Specification Wavelength (nm): 587.6

Clear Aperture CA (mm): 5.625

Centering (arcmin):

Center Thickness CT 1 (mm):

2.30

Center Thickness CT 2 (mm):

1.00

Center Thickness Tolerance (mm):

±0.2

Radius R₁ (mm):

37.16

Radius R₂ (mm):

-26.28

Radius R₃ (mm):

-76.48

Edge Thickness ET (mm):

3.10

Surface Quality:

40-20

f/#:

9.6

Numerical Aperture NA:

0.05

Coating:

VIS-NIR (400-1000nm)

Coating Specification:

R_abs ≤0.25% @ 880nm
R_avg ≤1.25% @ 400 - 870nm
R_avg ≤1.25% @ 890 - 1000nm

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Bevel:

Protective bevel as needed

Type:

Achromatic Lens

Wavelength Range (nm):

400 - 1000