LA1270-B N-BK7 Plano-Convex Lens; Dia:18.0 mm; f=25.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 25 mm
- BFL
- 21.3 mm
- R1
- 12.9 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
LA1270-B N-BK7 Plano-Convex Lens; Dia:18.0 mm; f=25.0 mm ARC 650-1050nm
The LA1270-B 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 25.0 mm, making it a versatile choice for many setups. The edge thickness is 1.8 mm, while the center thickness is 5.5 mm, providing a robust and durable structure. The lens has a front and back coating of tho b bbar, which enhances its transmission and reduces reflection, particularly in the 650-1050nm wavelength range.
The geometry of the lens is spherical, with a radius of curvature of 12.9 mm on the curved side and a back focal length of 21.3 mm. The lens is designed to be used in air, with an effective focal length of 25.0 mm. The lens is currently in stock and available for immediate shipping.
