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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

20mm Dia. x 80mm FL, MgF2 Coated, Double-Convex Lens

Stock #63-586
£28.05
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Qty 1-9
£28.05
Qty 10+
£25.29
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Diameter (mm):
20.00 +0.0/-0.025
Back Focal Length BFL (mm):
78.67
Effective Focal Length EFL (mm):
80.00
Coating:
MgF2 (400-700nm)
Coating Specification:
Ravg ≤1.75% @ 400 - 700nm
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
40-20
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Centering (arcmin):
<1
Bevel:
Protective bevel as needed
Center Thickness CT (mm):
4.00
Center Thickness Tolerance (mm):
±0.10
Edge Thickness ET (mm):
2.78
Radius R1=-R2 (mm):
82.00
Clear Aperture CA (mm):
19.00
f/#:
4.00
Focal Length Specification Wavelength (nm):
587.6
Focal Length Tolerance (%):
±1
Numerical Aperture NA:
0.13
Type:
Double-Convex Lens
Typical Energy Density Limit:
10 J/cm2 @ 532nm, 10ns
Wavelength Range (nm):
400 - 700

Regulatory Compliance

RoHS 2015:
Reach 219:

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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