48-311 25mm Dia. x 200mm 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
- 25 mm
- EFL
- 200 mm
- BFL
- 198.84 mm
- R1
- 182.85 mm
- R2
- -182.85 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
48-311 25mm Dia. x 200mm FL; UV-AR Coated; UV Double-Convex Lens UV-AR 250-425nm
The 48-311 is a UV-AR coated, UV double-convex lens, boasting a 25mm diameter and a 200mm focal length. This lens, sourced from the reputable vendor Edmund Optics, is designed for use within the UV spectrum, specifically between 250-425nm.
The lens's geometry is characterized by a 2.52mm edge thickness and a 3.38mm center thickness, with an effective focal length (EFL) of 200mm. The first and second radii of curvature are 182.85mm and -182.85mm, respectively, yielding a back focal length (BFL) of 198.84mm. The inner and outer radii are both zero, indicating a circular shape.
The lens is constructed from fused silica, identified as mal-1965 in the material ID. The coating on both the front and back surfaces follows the standard UV curve (edm uv std curve), contributing to the lens's overall performance within its designated UV spectrum.