49-974 20mm Dia. x 50mm FL UV-VIS Coated; UV Plano-Convex Lens UV-VIS 250-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 50 mm
- BFL
- 47.25 mm
- R1
- 22.92 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
49-974 20mm Dia. x 50mm FL UV-VIS Coated; UV Plano-Convex Lens UV-VIS 250-700nm
The 49-974 is a UV-VIS coated Plano-Convex lens, boasting a diameter of 20mm and a focal length of 50mm. This lens, sourced from the reputable vendor Edmund Optics, is designed for use within the UV-VIS spectrum, specifically catering to wavelengths between 250-700nm.
The lens's geometry is characterized by a thickness of 1.7mm at the edge, increasing to 4mm at the center, providing a solid base for various optical applications. The front and back surfaces of the lens are coated with the standard EDMM UV-VIS coating, ensuring optimal performance within its designated spectrum.
The lens's base shape is circular, and its geometry is spherical, with a radius of curvature of 22.92mm on the front surface. The back focal length measures 47.25mm, and the lens has no inner or outer radius, indicating a uniform curvature.
This lens is made from fused silica, identified as mal-1965 in the material ID, a common choice for its high transparency and resistance to thermal shock. The lens's shape, a Plano-Convex design, is a popular choice for applications requiring a single focusing surface.