LC2969-B 6 mm Dia. N-SF11 Plano-Concave Lens; EFL=-6mm 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 6 mm
- EFL
- -6 mm
- R1
- -4.7 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
LC2969-B 6 mm Dia. N-SF11 Plano-Concave Lens; EFL=-6mm 650-1050nm
The LC2969-B is a 6 mm diameter Plano-Concave Spherical Lens, sourced from the renowned optical component manufacturer, Thorlabs. This lens is designed for use within the wavelength range of 650-1050nm, making it suitable for a wide range of optical applications.
The lens features a center thickness of 1.5mm and an effective focal length (EFL) of -6mm, indicating its concave geometry. The concave shape is further defined by a radius of curvature (R1) of -4.7mm on the curved surface. The lens's base shape is circular, and it does not have any inner or outer radius specifications.
The lens is crafted from N-SF11 Schott glass, a material known for its high refractive index and low dispersion. This makes the lens ideal for applications that require high optical performance and precision.
The LC2969-B is coated with a broadband anti-reflection coating (BBAR) on both the front and back surfaces. This coating, denoted as 'tho b bbar', reduces surface reflections and increases transmission, thereby enhancing the overall efficiency of the optical system.