32-991 20mm Dia. x -20mm FL; MgF2 Coated; Double-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -20 mm
- BFL
- -20.55 mm
- R1
- -31.82 mm
- R2
- 31.82 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
32-991 20mm Dia. x -20mm FL; MgF2 Coated; Double-Concave Lens 400-700nm
The 32-991 is a high-quality Double-Concave Lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 20mm, is designed to work within a focal length of -20mm, making it ideal for applications that require a negative focal length.
The lens is crafted from the high-performance material, n-sf11 Schott, which is known for its excellent optical properties. This material, combined with the lens's spherical shape, ensures high-quality imaging and light transmission.
The 32-991 lens features a front and back coating of edm mgf2 std curve. This coating is designed to enhance the lens's performance by reducing surface reflections and increasing transmission in the spectral range of 400-700nm. This makes the lens suitable for a wide range of applications, including but not limited to, imaging, beam shaping, and laser systems.
The lens has a thickness of 5.03mm at the edge and 2mm at the center, providing a robust structure while maintaining a compact design. The inner and outer radii are 0mm, indicating a uniform curvature throughout the lens.
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