48-291 25mm Dia. x 250mm 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
- 25 mm
- EFL
- 250 mm
- BFL
- 248.14 mm
- R1
- 114.61 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
48-291 25mm Dia. x 250mm FL UV-AR Coated; UV Plano-Convex Lens UV-AR 250-425nm
The 48-291 is a UV Plano-Convex Lens, 25mm in diameter and 250mm in focal length, manufactured by Edmund Optics. This lens is designed for use with UV light, specifically within the wavelength range of 250-425nm. The lens features UV-AR coating on both the front and back surfaces, which enhances its performance by minimizing unwanted reflections and increasing transmission in the UV range.
The lens is made of fused silica, a material with a high transmission rate in the UV range, making it an ideal choice for UV applications. The lens has a spherical shape, with a plano-convex design, meaning one side is flat while the other is curved. The radius of curvature for the curved side is 114.61mm, and the lens has a back focal length of 248.14mm.
The lens has a center thickness of 2.71mm and an edge thickness of 2.03mm, providing a robust structure suitable for various applications. The lens's effective focal length (EFL) is 250mm, which is the distance from the lens's center to the focal point. The lens's inner and outer radii are both 0mm, indicating a uniform curvature across the lens.