AL1210M-C 12.5 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=10 mm; NA=0.55 AR 1050-1700nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 10 mm
- R1
- 7.77 mm
- R2
Material
- Name
- S-LAH64
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7768959986651893
- λ
- 780 nm
- B1
- 1.83021453
- C1
- 0.0090482329 μm2
- B2
- 0.29156359
- C2
- 0.0330756689 μm2
- B3
- 1.28544024
- C3
- 89.3675501 μm2
AL1210M-C 12.5 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=10 mm; NA=0.55 AR 1050-1700nm
The AL1210M-C is a high-precision aspheric lens offered by Thorlabs, a leading vendor in the optical industry. This lens, with a diameter of 12.5 mm, is designed for use with a wavelength of 780 nm and features an effective focal length (EFL) of 10 mm.
The lens is made from S-LAH64, a high-quality optical glass from Ohara, known for its excellent transmittance and low autofluorescence. The lens is polished using Computer Numerical Control (CNC) techniques, ensuring high precision and consistency.
The aspheric design of the lens helps to reduce spherical aberration, a common issue in traditional spherical lenses. This is achieved through the use of customized coefficients (k1, k2, a2, a4, a6, a8, a10, and a12) that shape the lens surface. The lens has a high numerical aperture (NA) of 0.55, which allows for a wide angle of view and high light-gathering capability.
The lens is coated with Thorlabs' proprietary broadband anti-reflection coating (AR), which covers the wavelength range of 1050-1700 nm. This coating reduces surface reflections, improving the overall transmission of the lens and reducing unwanted back reflections.
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