36-689 25mm Dia x 35mm FL Uncoated; UV Plano-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 35 mm
- BFL
- 29.17 mm
- R1
- 16.05 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
36-689 25mm Dia x 35mm FL Uncoated; UV Plano-Convex Lens
The 36-689 is a 25mm diameter, 35mm focal length uncoated plano-convex lens, designed for use with UV light. This lens, sourced from Edmund Optics, is a spherical lens with a base shape of a circle, offering a wide range of applications.
The lens has a diameter of 25mm, with a thickness of 2.51mm at the edge and 8.5mm at the center. The effective focal length (EFL) is 35mm, making it suitable for various optical systems. The lens's radius of curvature (R1) is 16.05mm, and the back focal length (BFL) is 29.17mm, providing a clear understanding of its geometric properties.
The lens is made from fused silica, specifically identified as mal-1965 in the material ID. This material is known for its excellent transparency in the UV region, making this lens an ideal choice for UV applications. The wavelength for this lens is 587.6nm, further emphasizing its UV capabilities.
Notably, this lens is uncoated, which means it does not have any anti-reflective or other coatings. This may result in higher reflectivity, especially at the air-glass interfaces, but it also means the lens is less susceptible to damage from environmental factors or handling.