LA1172-C N-BK7 Plano-Convex Lens; Dia:1 in; f=400.0 mm ARC 1050-1700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 400 mm
- BFL
- 397.1 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
LA1172-C N-BK7 Plano-Convex Lens; Dia:1 in; f=400.0 mm ARC 1050-1700nm
The LA1172-C is a plano-convex lens made of N-BK7 glass, a popular material in the optical industry due to its excellent optical properties. This lens, sourced from Thorlabs, has a diameter of 1 inch (25.4 mm) and a focal length of 400 mm. The lens's geometry includes a thickness of 2 mm at the edge and 2.4 mm at the center, with an effective focal length (EFL) of 400 mm.
The lens's front and back surfaces are coated with a broadband anti-reflection coating (tho c bbar), designed to operate within the 1050-1700 nm wavelength range. This coating reduces surface reflections, enhancing transmission and improving overall system performance.
The lens's shape is spherical, with a radius of curvature (R1) of 206 mm and a back focal length (BFL) of 397.1 mm. The inner and outer radii are both 0, indicating a plano surface on one side and a curved surface on the other.
