LA1145-AB 50.8 mm Dia. N-BK7 Plano-Convex Lens; EFL=75mm 400-1100nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 74.8 mm
- R1
- 38.6 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
LA1145-AB 50.8 mm Dia. N-BK7 Plano-Convex Lens; EFL=75mm 400-1100nm
The LA1145-AB is a 50.8 mm diameter Plano-Convex lens made from N-BK7 Schott glass, sourced from Thorlabs. This lens is designed for use within a broad wavelength range, from 400 to 1100 nm, making it a versatile choice for various optical applications.
The lens features an effective focal length (EFL) of 74.8 mm, providing a precise focus point for light passing through it. The front and back surfaces of the lens are coated with THo AB Bbar, a broadband anti-reflection coating that reduces surface reflections and increases transmission.
The lens's geometry includes a 3 mm thickness at the edge and a 12.5 mm thickness at the center. The front surface of the lens has a radius of curvature of 38.6 mm, while the back surface has an infinite radius, indicating it is a flat surface. The lens's base shape is circular, contributing to its wide field of view.