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EFL=50mm , Cemented Achromatic Doublets (ACD)

EFL=50mm , Cemented Achromatic Doublets (ACD)

$55.00 USD
$55.00 USD
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配送料はチェックアウト時に計算されます。
Diameter
Effective Focal Length
Coating

EFL = 50mm

Specification1:
AR Coating = 400-700nm
Material = H-ZF2&H-BAK7
R1 , R2 , R3 = -372.618mm, 25.654mm, -25.654mm
Tc1 , Tc2 = 3.81mm , 2.286mm

Specification2:
AR Coating = MGF2@587.6nm
Material = H-K9L&H-ZF2
R1 , R2 , R3 = 30.833mm, 22.069mm, 64.049mm
Tc1 , Tc2 = 4.3mm , 2.8mm

Specification3:
AR Coating = MGF2@R＜1.5%@587.6nm
Material = H-ZBAF52&H-ZF4
R1 , R2 , R3 = 34.53mm, 21.98mm, 214.63mm
Tc1 , Tc2 = 11.5mm ,9mm

Specification4:
AR Coating = Ravg＜0.5% @450-680nm
Material = H-K9L&H-ZF2
R1 , R2 , R3 =30.73mm, 22.32mm, 64.75mm
Tc1 , Tc2 = 5mm , 3.5mm

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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