89-429 5mm Dia x 20mm FL VIS-NIR Coated; UV Plano-Convex Lens VIS-NIR 400-1000nm
- 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
89-429 5mm Dia x 20mm FL VIS-NIR Coated; UV Plano-Convex Lens VIS-NIR 400-1000nm
The 89-429 is a UV Plano-Convex Lens, designed and manufactured by Edmund Optics. This lens, with a diameter of 5mm and a focal length of 20mm, is a Spherical Lens of the Plano-Convex type, featuring a base shape that is circular.
The lens's geometry is meticulously crafted, with an edge thickness of 1.15mm and a center thickness of 1.5mm. The effective focal length (EFL) is 20mm, and the first radius of curvature (R1) is 9.17mm. The back focal length (BFL) is 18.97mm, while both the inner and outer radii are 0mm.
The lens is constructed from Fused Silica (Mal-1965), a material known for its excellent optical properties and durability. The wavelength for this lens is 587.6nm.
The lens is coated with a VIS-NIR coating, specifically the EDM VISNIR0SP2002000 coating, on both the front and back surfaces. This coating enhances the lens's performance in the visible and near-infrared spectrum, which is between 400-1000nm.
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