LC2873-B 9 mm Dia. N-SF11 Plano-Concave Lens; EFL=-18mm 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- -18 mm
- R1
- -14 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
LC2873-B 9 mm Dia. N-SF11 Plano-Concave Lens; EFL=-18mm 650-1050nm
The LC2873-B is a Plano-Concave Spherical Lens with a 9 mm diameter, sourced from Thorlabs. This lens is designed for use in the wavelength range of 650-1050nm, making it suitable for a wide range of optical applications. The lens has a center thickness of 2.5mm and an effective focal length (EFL) of -18mm, which is typical for Plano-Concave lenses.
The lens is made from N-SF11 Schott glass, a popular material for optical elements due to its high refractive index and low dispersion. This makes the lens ideal for applications that require high optical performance and color correction.
The LC2873-B is coated with Thorlabs' BBAR coating on both the front and back surfaces. This coating reduces reflection and increases transmission, enhancing the lens's performance in high-transmission applications.
Please note that the inner and outer radii of the lens are 0, indicating that this is a flat-concave lens. This type of lens is often used to spread or disperse light, making it suitable for applications such as beam expansion or collimation.
For more information, including pricing and availability, please refer to the vendor's website using the provided weblink.
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