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5mm Dia. x 15mm FL, MgF2 Coated, Achromatic Doublet Lens

MgF<sub>2</sub> Coated Achromatic Lenses

Stock #45-207 $57.50
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Product Family Description

  • Designed for 0° Angle of Incidence
  • Less Than 1.75% Reflectance Per Surface @ 400 - 700nm
  • VIS 0° and VIS-NIR Coated Achromats Also Available

Achromatic doublet lenses consist of two optical components cemented together to form an achromatic doublet which is computer optimized to correct for on-axis spherical and chromatic aberrations. Our achromatic doublets are available with a single layer MgF2 coating or a broadband multi-layer coating for the visible spectrum. NIR achromatic doublets and edge blackened achromatic doublets are also available.

Achromatic doublet lenses are far superior to simple lenses for multi-color ("white light") imaging. The two elements composing an achromatic doublet lens (literally, "a lens with no color") are paired together for their ability to correct the color separation inherent in glass. Having eliminated the problematic chromatic aberrations, achromatic doublet lenses become the most cost-efficient means for good polychromatic illumination and imaging.


Common Specifications for Product Family

Focal Length Tolerance (%):
±2
Coating:
MgF2 (400-700nm)
Coating Specification:
Ravg ≤1.75% @ 400 - 700nm

Specifications

Diameter (mm):
5.0
Diameter Tolerance (mm):
+0.0/-0.025
Effective Focal Length EFL (mm):
15.0
Back Focal Length BFL (mm):
13.64
Focal Length Specification Wavelength (nm):
587.6
Clear Aperture CA (mm):
4.5
Centering (arcmin):
<1
Center Thickness CT 1 (mm):
1.55
Center Thickness CT 2 (mm):
1.03
Center Thickness Tolerance (mm):
±0.2
Radius R1 (mm):
10.67
Radius R2 (mm):
-6.46
Radius R3 (mm):
-53.57
Edge Thickness ET (mm):
2.22
Substrate:
N-BAF10 / N-SF10
Surface Quality:
40-20
f/#:
3
Numerical Aperture NA:
0.17
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 - 700
RoHS:

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