48-839 12mm Dia. x 75mm; UV-VIS Coated; UV Double-Convex Lens UV-VIS 250-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 20 mm
- BFL
- 17.18 mm
- R1
- 68.36 mm
- R2
- -68.36 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
48-839 12mm Dia. x 75mm; UV-VIS Coated; UV Double-Convex Lens UV-VIS 250-700nm
The 48-839 is a UV-VIS coated, UV double-convex lens, boasting a 12mm diameter and a 75mm length. This lens, sourced from the reputable vendor Edmund Optics, is designed for use within the UV-VIS spectrum, specifically between 250-700nm.
The lens's geometry is characterized by a 2.5mm edge thickness and a 2.59mm center thickness, with an effective focal length (EFL) of 20mm. The first and second radii of curvature (R1 and R2) are 68.36mm and -68.36mm respectively, contributing to a back focal length (BFL) of 17.18mm. The lens's inner and outer radii are both zero, indicating a circular base shape.
The lens is constructed from fused silica, identified as mal-1965 in the Material ID. This material is known for its excellent transparency and resistance to thermal shock, making it suitable for a wide range of optical applications.
The lens features a UV-VIS coating on both the front and back surfaces, adhering to the standard curve as defined by Edmund Optics. This coating enhances the lens's performance within the UV-VIS spectrum, reducing surface reflections and improving transmission.
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