EFL=1512mm , Cemented Achromatic Doublets (ACD)
EFL=1512mm , Cemented Achromatic Doublets (ACD)
Regular price
$65.00 USD
Regular price
Sale price
$65.00 USD
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EFL=1512mm
AR Coating = 420-900nm
Material = H-ZPK1&H-ZF52A
R1, R2, R3 =37.93mm,87.5mm,-52.24mm
Tc1, Tc2 = 12mm,6mm
SKU:
Common Specification
Common Specification
Legend
Legend
- Dia. = Diameter
- R = Radius of Curvature
- ET = Edge Thickness
- EFL = Effective Focal Length
- CT = Center Thickness
- P = Principle Point
- BFL = Back Focal Length
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.