MgF2 CoatedAchromatic Lenses 

ACHROMATIC DOUBLET LENSES | MgF₂ AR Coating | Color Correction

In-stock lenses (Dia. & EFL, mm): 

8.5×19.7, 13.2×37.8, 15×32, 15.1×24, 18×97.4,
19×88, 25×93.6, 25×98.6, 25.3×103, 25.9×48.6,
28×100, 36×1867, 40×123, 42×126, 50×178,
55×268, 57×550, 62×230.
Custom sizes are available.

 We also have the following additional stock. 

Dia.10mm EFL155.5mm, Dia.10mm EFL201mm, Dia.11mm EFL77mm, Dia.13mm EFL39.7mm, Dia.15mm EFL32mm, Dia.16mm EFL34.47mm, Dia.17mm EFL1830.57mm, Dia.17mm EFL108mm, Dia.18mm EFL97.48mm, Dia.25mm EFL93.67mm, Dia.25.3mm EFL103mm, Dia.22mm EFL27mm, Dia.28mm EFL100mm, Dia.32mm EFL123mm, Dia.36mm EFL123mm, Dia.40mm EFL123mm,Dia.42mm EFL123mm, Dia.55mm EFL268mm, Dia.57mm EFL550mm, Dia.60mm EFL197mm, Dia.62mm EFL230mm

 Available Services 

  • Custom Achromatic Lens Fabrication 

    We fabricate achromatic doublet lenses with precision grinding, polishing and centering. Custom diameters, focal lengths, edge thickness and chamfers available per your drawing.
    Suitable for machine vision, imaging optics, spectroscopy, PTZ cameras, drone payloads and optical measurement systems.

  • Achromatic Color Correction & Low Aberration 

    Achromatic doublet design corrects axial chromatic aberration and spherical aberration over visible spectrum. No extra correction lens group required for routine imaging.
    Stable optical performance for long-hour industrial, surveillance and outdoor optical systems.

  • Optical Coating Options 

    MgF₂ single-layer AR coating for visible band, reducing surface reflection and boosting transmission; multi-layer AR coating optional for higher transmittance.
    Anti-scratch hard coating is available upon request. Multiple coating combinations can be customized.

Key Differentiators 

MgF₂ coated achromatic lenses are precision imaging optical elements made by cementing two optical glasses of different dispersion. They are not simple single lenses, but achromatic doublets with MgF₂ anti-reflection coating — effectively correcting chromatic aberration and spherical aberration in the visible range, delivering sharp, low-distortion images, and standing out for stable optical performance among general optical lenses.

Why Choose MgF₂ Coated Achromatic Lenses 

  • Achromatic Color Correction 

    Our doublet design combines two optical glasses with different dispersion properties to eliminate axial chromatic aberration.
    Colors converge at the same focal plane without color fringing. It delivers sharp, true-color imaging where single lenses produce blurred, tinted outputs.

  • MgF₂ Anti-Reflection Coating 

    MgF₂ single-layer AR coating cuts surface reflection effectively for the visible spectrum.
    Reduces glare and ghost images, raising overall light throughput. The coating is durable, low cost and stable under normal industrial and surveillance environments.

  • Precision Polished Optical Performance 

    Strictly controlled surface figure and centration tolerance.
    Optimized to correct both chromatic and spherical aberration. Ideal for machine vision, PTZ cameras, spectroscopy and drone payloads, delivering distortion-free, consistent imaging quality.

Applications 

MgF₂ coated achromatic lenses are ideal imaging optical components for visible-band optical systems, including machine vision cameras, PTZ surveillance cameras, drone payload optics, optical measurement instruments and spectroscopy setups.

They are also widely adopted in industrial inspection, searchlight optics, biotech analytical equipment, educational optical instruments, automated visual inspection systems and outdoor imaging devices — wherever sharp, color-corrected low-ghost imaging is required.