89-421 5mm Dia x 20mm FL UV-VIS Coated; UV Plano-Convex Lens UV-VIS 250-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 5 mm
- EFL
- 20 mm
- BFL
- 18.97 mm
- R1
- 9.17 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
89-421 5mm Dia x 20mm FL UV-VIS Coated; UV Plano-Convex Lens UV-VIS 250-700nm
The 89-421 is a UV-VIS coated Plano-Convex lens, sourced from Edmund Optics. This lens, with a diameter of 5mm, is designed for use within the UV-VIS spectrum, specifically between 250-700nm. The lens's geometry is characterized by a thickness of 1.15mm at the edge, increasing to 1.5mm at the center, and a focal length of 20mm.
The lens's front and back surfaces are coated with the standard EDMM UV-VIS coating, providing optimal performance within the UV-VIS spectrum. The lens's base shape is circular, and it features a spherical geometry, with a radius of curvature of 9.17mm on the curved surface. The back focal length of the lens is 18.97mm, and it has no inner or outer radius.
This lens is made from fused silica, identified as mal-1965 in the material ID. The wavelength for this lens is 587.6nm. The 89-421 is a reliable and efficient choice for applications that require a UV-VIS coated Plano-Convex lens.