49-254 6mm Dia. x 6mm; 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
- 6 mm
- EFL
- 6 mm
- BFL
- 4.38 mm
- R1
- 4.76 mm
- R2
- -4.76 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
49-254 6mm Dia. x 6mm; UV-VIS Coated; UV Double-Convex Lens UV-VIS 250-700nm
The 49-254 is a UV-VIS coated, UV double-convex lens, with a diameter of 6mm and a thickness of 1.97mm at the edge, increasing to 4.1mm 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 a double-convex geometry, with radii of curvature of 4.76mm and -4.76mm for the first and second surfaces, respectively. This design results in an effective focal length of 6mm and a back focal length of 4.38mm. The lens is made from fused silica (mal-1965), a material known for its excellent optical properties and durability.
The lens is coated with a standard UV-VIS coating on both the front and back surfaces, following the Edmund Optics UV-VIS standard curve. This coating enhances the lens's performance within the UV-VIS spectrum, reducing reflections and increasing transmission.