48-041 12mm Dia. x 20mm FL; UV-AR Coated; UV Double-Convex Lens UV-AR 250-425nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 20 mm
- BFL
- 18.44 mm
- R1
- 17.63 mm
- R2
- -17.63 mm
Material
- Name
- Fused Silica
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.458462342053241
- λ
- 587.6 nm
- B1
- 0.6961663
- C1
- 0.00467914825849 μm2
- B2
- 0.4079426
- C2
- 0.013512063073959999 μm2
- B3
- 0.8974794
- C3
- 97.934002537921 μm2
48-041 12mm Dia. x 20mm FL; UV-AR Coated; UV Double-Convex Lens UV-AR 250-425nm
The 48-041 is a UV-AR coated, double-convex lens with a diameter of 12mm and a focal length of 20mm, sourced from Edmund Optics. This lens is designed for use within the UV spectrum, specifically between 250-425nm, making it ideal for applications such as UV imaging or spectroscopy.
The lens is constructed from fused silica (mal-1965), a material known for its high transparency in the UV range. The double-convex geometry, with radii of curvature of 17.63mm and -17.63mm, provides a large numerical aperture, enhancing the lens's light-gathering capability. The center thickness of the lens is 4.37mm, while the edge thickness is 2.27mm, contributing to its robustness and durability.
The lens features UV-AR coatings on both the front and back surfaces, following the standard curve from Edmund Optics. These coatings are designed to reduce surface reflections and increase transmission within the UV range, further optimizing the lens's performance in its intended application.
