89-418 5mm Dia x 25mm FL UV-AR Coated; UV Plano-Convex Lens UV-AR 250-425nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 5 mm
- EFL
- 25 mm
- BFL
- 23.97 mm
- R1
- 11.46 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
89-418 5mm Dia x 25mm FL UV-AR Coated; UV Plano-Convex Lens UV-AR 250-425nm
The 89-418 is a UV Plano-Convex Lens, 5mm in diameter and 25mm in focal length, featuring UV-AR coating on both surfaces. This lens, sourced from Edmund Optics, is designed for use within the UV spectrum, specifically between 250-425nm.
The lens is made of fused silica (mal-1965), a high-quality material known for its excellent transparency in the UV range. The plano-convex geometry, with a 1.22mm edge thickness and 1.5mm center thickness, ensures efficient light transmission and minimal distortion. The 11.46mm radius of curvature contributes to a 23.97mm back focal length, providing a wide range of application possibilities.
The UV-AR coating on both the front and back surfaces is standard from Edmund Optics, designed to enhance the lens's performance within the UV spectrum. This coating reduces surface reflections and increases transmission, making it ideal for UV applications.