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EFL=106.7mm , Cemented Achromatic Doublets (ACD)

EFL=106.7mm , Cemented Achromatic Doublets (ACD)

Normaler Preis $55.00 USD
Normaler Preis Verkaufspreis $55.00 USD
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Diameter
Effective Focal Length
Coating

EFL=106.7mm
AR Coating = R<0.5% @650nm
Material = H-ZF7LA&H-ZK9B
R1, R2, R3 =120.371mm,-40.653mm,85.11mm
Tc1, Tc2 = 7.32mm,3.57mm

SKU:

Common Specification

Legend

  • Dia. = Diameter
  • R = Radius of Curvature
  • ET = Edge Thickness
  • EFL = Effective Focal Length
  • CT = Center Thickness
  • P = Principle Point
  • BFL = Back Focal Length
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Benefit of Achromatic Doublets

An achromatic lens is far superior to a simple lens for multi-color "white light" imaging. The two elements composing an achromatic 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, an achromatic lens becomes the most cost-efficient means for good polychromatic illumination and imaging. Refer to Figure 8 for an illustration of this concept.

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