LC2679-A 25.4 mm Dia. N-SF11 Plano-Concave Lens; EFL=-30mm 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -30 mm
- R1
- -23.4 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
LC2679-A 25.4 mm Dia. N-SF11 Plano-Concave Lens; EFL=-30mm 350-700nm
The LC2679-A is a 25.4 mm diameter Plano-Concave Spherical Lens, designed and manufactured by Thorlabs. This lens is specifically engineered for use within the wavelength range of 350-700nm, making it suitable for a wide array of optical applications.
The lens features an effective focal length (EFL) of -30mm, indicating its concave design. The EFL is a crucial parameter in lens selection, as it directly influences the magnification and focusing capabilities of the lens. A negative EFL, as in this case, denotes a diverging lens, which spreads out light rays.
The lens is constructed from N-SF11 Schott glass, a material known for its high refractive index and low dispersion. This makes the lens particularly effective at bending light rays without causing significant chromatic aberration.
The LC2679-A is coated with a THo A Bbar coating on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission, thereby improving overall system efficiency.
The lens has a center thickness of 3.5mm and a clear aperture, with no inner or outer radius specified, indicating a uniform curvature across the lens surface. This lens is currently in stock and available for immediate purchase through the provided weblink.
