18mm Dia x -46 FL MgF<sub>2</sub> Coated, Achromatic Lens

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Qty 1+	~~NT$453~~ NT$227 each
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Specifications

概況

Type:

Achromatic Lens

物理和機械特性

Diameter (mm):

18.00

光學特性

Effective Focal Length EFL (mm):

-46.00

f/#:

2.56

Numerical Aperture NA:

0.20

Coating:

MgF₂ (400-700nm)

Coating Specification:

R_avg ≤1.75% @ 400 - 700nm

Wavelength Range (nm):

400 - 700

Regulatory Compliance

Certificate of Conformance:

View

產品概覽

Correct for Color and On-Axis Aberrations
MgF₂ Coated for Low Reflection
Ideal for use as Barlow Lenses

Consisting of two optical elements cemented together, negative achromats are corrected for color and on-axis aberrations. Used predominantly as Barlow lenses to extend focal lengths, they are often combined with positive achromatic mirror systems and imaging lenses.