32-993 25mm Dia. x -25mm FL; MgF2 Coated; Double-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -25 mm
- BFL
- -25.69 mm
- R1
- -39.78 mm
- R2
- 39.78 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
32-993 25mm Dia. x -25mm FL; MgF2 Coated; Double-Concave Lens 400-700nm
The 32-993 is a high-quality double-concave lens, boasting a 25mm diameter and a focal length of -25mm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is available for immediate purchase, as indicated by its "in stock" status on the vendor's website.
The lens is crafted from n-sf11 Schott, a high-index glass material known for its excellent optical properties. It features a spherical shape, with radii of curvature R1 and R2 measured at -39.78mm and 39.78mm respectively. This specific lens is designed for use within the wavelength range of 400-700nm, making it suitable for a wide array of optical applications.
The 32-993 lens is coated with MgF2, a standard coating that provides superior anti-reflection properties. This coating, applied to both the front and back surfaces of the lens, enhances its performance by reducing surface reflections and increasing transmission. The coating is applied using a standard curve, ensuring consistent performance across the lens' surface.
The lens' geometry is meticulously designed, with a center thickness of 2.5mm and an edge thickness of 6.05mm. The back focal length (BFL) is measured at -25.69mm, providing a clear understanding of the lens' optical properties. The lens' inner and outer radii are 0mm, indicating a uniform curvature throughout.