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EFL=100mm , Cemented Achromatic Doublets (ACD)

EFL=100mm , Cemented Achromatic Doublets (ACD)

Regular price $55.00 USD
Regular price Sale price $55.00 USD
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Diameter
Effective Focal Length
Coating

EFL = 100mm

Specification1:
AR Coating = MGF2@550nm
Material = H-K9L&H-ZF2
R1 , R2 , R3 = 61.54mm, 44.39mm, 130.26mm
Tc1 , Tc2 = 4.5mm , 3mm

Specification2:
AR Coating = MGF2@R<1.5%@587.6nm
Material = H-ZBAF52&H-ZF4
R1 , R2 , R3 = 70.778mm, 45.18mm, 381.768mm
Tc1 , Tc2 = 18mm , 14mm

Specification3:
AR Coating = R<0.5% @905nm
Material = H-BAK6&H-ZF2
R1 , R2 , R3 = 64.86mm, 42.01mm, 169.04mm
Tc1 , Tc2 = 8.7mm , 6.2mm

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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