49-257 9mm Dia. x 9mm; 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
- 9 mm
- EFL
- 9 mm
- BFL
- 7.12 mm
- R1
- 7.39 mm
- R2
- -7.39 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
49-257 9mm Dia. x 9mm; UV-VIS Coated; UV Double-Convex Lens UV-VIS 250-700nm
The 49-257 is a UV-VIS coated, UV double-convex lens, boasting a 9mm diameter and a thickness ranging from 1.84mm at the edge to 4.9mm at the center. This lens is designed for use within the UV-VIS spectrum, specifically between 250-700nm, making it suitable for a wide range of applications.
The lens features an effective focal length (EFL) of 9mm, and its front and back surfaces are characterized by radii of curvature of 7.39mm and -7.39mm respectively. The back focal length (BFL) is 7.12mm. The lens is made from fused silica, a material known for its excellent transparency and durability.
The 49-257 is coated with Edmund Optics' standard UV-VIS coating on both the front and back surfaces. This coating enhances the lens's performance within the UV-VIS spectrum, providing improved transmission and reduced reflection.