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

50mm Dia. x 200mm FL, NIR II Coated, Double-Convex Lens

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Stock #67-676 Other Coating Options
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€64,00
Qty 1-9
€64,00
Qty 10+
€56,75
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Diameter (mm):
50.00 +0.0/-0.025
Back Focal Length BFL (mm):
198.33
Effective Focal Length EFL (mm):
200.00
Coating:
NIR II (750-1550nm)
Coating Specification:
Rabs ≤1.5% @ 750 - 800nm
Rabs ≤1.0% @ 800 - 1550nm
Ravg ≤0.7% @ 750 - 1550nm
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
Center Thickness CT (mm):
5.05
Center Thickness Tolerance (mm):
±0.10
Edge Thickness ET (mm):
2.00
Radius R1=-R2 (mm):
205.86
Clear Aperture CA (mm):
49.00
f/#:
4.00
Focal Length Specification Wavelength (nm):
587.6
Focal Length Tolerance (%):
±1.00
Numerical Aperture NA:
0.13
Type:
Double-Convex Lens
Typical Energy Density Limit:
8 J/cm2 @ 1064nm, 10ns
Wavelength Range (nm):
750 - 1550

Regulatory Compliance

RoHS 2015:
Reach 224:

Product Family Description

TECHSPEC® NIR II Coated Double-Convex (DCX) Lenses, also referred to as bi-convex lenses, have two positive, symmetrical faces with equal radii on both sides. These lenses are generally recommended for finite imaging applications with a conjugate ratio (ratio between object distance and image distance) between 0.2 and 5. At a conjugate ratio of 1, aberrations such as spherical aberration, chromatic aberration, coma, and distortion are minimized or cancelled due to the symmetric lens design. TECHSPEC NIR II Coated Double-Convex Lenses are available in a variety of substrates and coating options for the visible and NIR spectra.

Technical Information

Technical Information

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