84-285 30mm Dia. x 120mm FL Uncoated; UV Plano-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 30 mm
- EFL
- 120 mm
- BFL
- 116.57 mm
- R1
- 55.02 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
84-285 30mm Dia. x 120mm FL Uncoated; UV Plano-Convex Lens
The 84-285 is a 30mm diameter, 120mm focal length Plano-Convex lens, uncoated and optimized for UV light at a wavelength of 587.6nm. This lens is sourced from Edmund Optics, a leading vendor in the optical industry, and is available for purchase directly from their website.
The lens is constructed from fused silica, a high-quality material with excellent transparency across a wide range of wavelengths, making it ideal for UV applications. The Plano-Convex design features a flat (Plano) surface on one side and a curved (Convex) surface on the other, with a radius of curvature of 55.02mm. This design provides a large clear aperture, minimal distortion, and high efficiency, making it suitable for a variety of applications.
The lens has a thickness of 2.92mm at the edge and 5mm at the center, and an effective focal length (EFL) of 120mm. The back focal length (BFL) is 116.57mm, and the lens has no inner or outer radius, indicating a uniform thickness across the entire surface.
The lens is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surfaces. This can result in higher levels of reflection, particularly at the air-glass interfaces, but it also means that the lens is less susceptible to damage from environmental factors or handling.
