48-849 25mm Dia. x 200mm; 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
- 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
48-849 25mm Dia. x 200mm; UV-VIS Coated; UV Double-Convex Lens UV-VIS 250-700nm
The 48-849 is a UV-VIS coated, UV double-convex lens, boasting a 25mm diameter and a 200mm focal length. This lens, sourced from the reputable vendor Edmund Optics, is a spherical lens with a convex-convex base shape and a circular geometry. The lens's thickness at the edge is 2.52mm, while its center thickness measures 3.38mm, providing a solid and robust structure.
The lens's effective focal length (EFL) is 200mm, and its front and back radii are 182.85mm and -182.85mm respectively, contributing to its double-convex design. The back focal length (BFL) is 198.84mm, and both the inner and outer radii are 0mm, indicating a uniform curvature.
The lens is made from fused silica, identified as mal-1965 in the Material ID, a common choice for its excellent optical properties and durability. The wavelength of 587.6nm suggests this lens is designed for use in the visible light spectrum.
The lens features a UV-VIS coating on both the front and back surfaces, following the standard curve from Edmund Optics. This coating enhances the lens's performance in the ultraviolet and visible light ranges, typically between 250-700nm.