LA1725-AB 50.8 mm Dia. N-BK7 Plano-Convex Lens; EFL=400mm 400-1100nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 400 mm
- R1
- 206 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
LA1725-AB 50.8 mm Dia. N-BK7 Plano-Convex Lens; EFL=400mm 400-1100nm
This LA1725-AB optical lens, sourced from Thorlabs, is a Plano-Convex Spherical Lens with a 50.8 mm diameter. The lens is made from N-BK7 Schott glass, a popular material for its high refractive index and low dispersion. The lens has a planar surface on one side and a convex surface on the other, with a center thickness of 4.6 mm and an edge thickness of 3 mm.
The lens's effective focal length (EFL) is 400 mm, making it suitable for applications that require substantial magnification or reduction of image size. The lens is designed to operate within the wavelength range of 400-1100 nm, encompassing a broad spectrum of visible and near-infrared light.
The lens features anti-reflection broadband coatings on both the front and back surfaces, denoted as 'tho ab bbar'. These coatings are designed to minimize surface reflections and increase transmission, thereby enhancing the overall efficiency and quality of the optical system.