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4.5mm Dia. x 9mm FL, VIS-NIR Coated, Double-Convex Lens

Stock #47-894
£51.43 £12.86 Other Coating Options
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Qty 1-9
£51.43 £12.86
Qty 10
£46.33 £11.58
Volume Pricing
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Diameter (mm):
4.50 +0.0/-0.025
Back Focal Length BFL (mm):
8.16
Effective Focal Length EFL (mm):
9.00
Coating:
VIS-NIR (400-1000nm)
Coating Specification:
Rabs ≤0.25% @ 880nm
Ravg ≤1.25% @ 400 - 870 nm
Ravg ≤1.25% @ 890 - 1000nm
Substrate:
Surface Quality:
40-20
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Centering (arcmin):
<3
Bevel:
Protective bevel as needed
Center Thickness CT (mm):
2.38
Center Thickness Tolerance (mm):
±0.05
Edge Thickness ET (mm):
1.80
Radius R1=-R2 (mm):
8.88
Clear Aperture CA (mm):
4.05
f/#:
2.00
Focal Length Specification Wavelength (nm):
587.6
Focal Length Tolerance (%):
±1
Numerical Aperture NA:
0.25
Type:
Double-Convex Lens
Typical Energy Density Limit:
5 J/cm2 @ 532nm, 10ns
Wavelength Range (nm):
400 - 1000

Regulatory Compliance

RoHS 2015:
Reach 209:

Product Family Description

Double-Convex (DCX) Lenses have two outward curved surfaces, a positive focal length and are useful for 1:1 imaging and in multi-element systems.

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