AL5040M-C 50 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=40 mm; NA=0.55 AR 1050-1700nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 40 mm
- R1
- 31.08 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
AL5040M-C 50 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=40 mm; NA=0.55 AR 1050-1700nm
The AL5040M-C is a high-precision aspheric lens offered by Thorlabs, designed with a 50 mm diameter and a focal length of 40 mm. This lens is crafted from S-LAH64, a high-quality optical glass from Ohara, ensuring excellent optical performance. The lens features a CNC-polished surface, which provides superior surface accuracy and finish.
The lens is designed for use in the 1050-1700 nm wavelength range, making it suitable for a variety of applications in the near-infrared spectrum. It boasts a high numerical aperture (NA) of 0.55, which allows for a wide angle of acceptance and improved light-gathering capabilities.
The AL5040M-C is coated with Thorlabs' proprietary broadband anti-reflection coating, denoted as 'tho c bbar'. This coating is applied to both the front and back surfaces of the lens, reducing surface reflections and increasing transmission efficiency.
