32-989 12mm Dia. x -12mm FL; MgF2 Coated; Double-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- -12 mm
- BFL
- -12.81 mm
- R1
- -19.47 mm
- R2
- 19.47 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
32-989 12mm Dia. x -12mm FL; MgF2 Coated; Double-Concave Lens 400-700nm
The 32-989 is a high-quality double-concave lens, boasting a 12mm diameter and a focal length of -12mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.
The lens is crafted from n-SF11 Schott, a high-index glass with excellent optical properties. It features a spherical shape, with a first radius (R1) of -19.47 and a second radius (R2) of 19.47, demonstrating its concave-concave geometry. The lens has an outer radius of 0 and an inner radius of 0, indicating its symmetrical structure.
The 32-989 lens is coated with MgF2, a standard coating that provides superior anti-reflection properties. This coating is applied to both the front and back surfaces of the lens, according to the EDM MgF2 STD CURVE specifications. This coating enhances the lens's performance in the 400-700nm wavelength range.
The lens has a thickness of 4.71mm at the edge and 3mm at the center, providing a balanced profile. Its effective focal length (EFL) is -12mm, and its back focal length (BFL) is -12.81mm.
This lens is an excellent choice for applications that require a high-quality, double-concave lens with a wide range of usability in various wavelengths. Its MgF2 coating ensures minimal reflection, making it ideal for use in laser systems, imaging applications, and other optical setups.
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