Thorlabs AC080-020-C-ML Mounted Achromatic Doublet Lens

The Thorlabs AC080-020-C-ML is a mounted achromatic doublet lens designed for near-infrared applications. It is part of Thorlabs’ series of AR-coated (anti-reflection coated) achromatic lenses optimized for minimizing chromatic aberration over a broadband wavelength range.

🔍 Key Specifications

• Type: Achromatic doublet lens (mounted)

• Diameter: 8 mm (Ø8 mm)

• Focal Length: 20 mm

• AR Coating Range: 1050 – 1620 nm (near-IR)

• Working Distance: ~14.8 mm

• Glass Materials: N-LAK22 and N-SF6HT (achromatic pairing)

• Surface Quality: 40-20 scratch-dig

• Typical Focal Length Tolerance: ± 1 %

🛠 Common Uses

This type of lens is typically used for:

• Near-IR imaging and focusing in optical setups

• Fiber coupling and collimation at wavelengths around 1050–1620 nm

• Laser beam shaping and collection optics

• Optomechanical assemblies requiring compact achromatic lenses