48-336 9mm Dia. x -9mm FL; Uncoated; Double-Concave Lens
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- -9 mm
- BFL
- -9.61 mm
- R1
- -14.6 mm
- R2
- 14.6 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
48-336 9mm Dia. x -9mm FL; Uncoated; Double-Concave Lens
The 48-336 is a spherical lens with a base shape of a circle, sourced from the reputable vendor, Edmund Optics. This lens falls under the category of a concave-concave or double-concave lens, characterized by its inwardly curved surfaces on both sides. The lens has a diameter of 9mm and a focal length of -9mm, making it a negative or diverging lens.
The lens's geometry includes a thickness of 3.48mm at the edge and 2.25mm at the center. The first radius of curvature (R1) is -14.6mm, while the second radius of curvature (R2) is 14.6mm. The back focal length (BFL) is -9.61mm. The lens is made of n-SF11 Schott, a high-index glass with excellent optical properties.
The lens is designed to operate at a wavelength of 587.6nm. It is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surfaces. This can result in higher reflectivity and lower transmission compared to coated lenses, but it may also be more cost-effective.