LA1859-A N-BK7 Plano-Convex Lens; Dia:18.0 mm; f=20.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 20 mm
- BFL
- 15.3 mm
- R1
- 10.3 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LA1859-A N-BK7 Plano-Convex Lens; Dia:18.0 mm; f=20.0 mm ARC 350-700nm
The LA1859-A is a high-quality plano-convex lens from Thorlabs, designed for use in a wide range of optical applications. This lens is made from N-BK7, a popular glass type known for its excellent optical properties, and is manufactured by Schott, a leading glass manufacturer.
The lens has a diameter of 18.0 mm and a focal length of 20.0 mm, making it a versatile choice for many setups. The plano-convex design features a flat front surface and a curved back surface, which helps to minimize spherical aberration and ensure high-quality imaging.
The LA1859-A is coated with Thorlabs' ARC coating, which is designed to reduce reflection and increase transmission over the 350-700nm wavelength range. This coating helps to improve the overall efficiency of your optical system and reduces the need for additional anti-reflection components.
The lens has a thickness of 1.8 mm at the edge and 7.1 mm at the center, providing a robust and durable design. The inner and outer radii are both 0 mm, indicating a sharp curvature on the back surface.
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