32-879 35mm Dia. x 70mm FL Uncoated; Double-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 35 mm
- EFL
- 70 mm
- BFL
- 67.48 mm
- R1
- 71.08 mm
- R2
- -71.08 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
32-879 35mm Dia. x 70mm FL Uncoated; Double-Convex Lens
The 32-879 is a 35mm diameter, double-convex spherical lens with a focal length of 70mm, sourced from Edmund Optics. This lens is uncoated, which means it does not have any additional layers to enhance light transmission or protect the surface. The lens's base shape is circular, and it features a double-convex geometry, meaning both surfaces are curved outwards.
The lens's geometry includes a thickness edge of 3.12mm and a thickness center of 7.5mm. The effective focal length (EFL) is 70mm, and the radii of curvature are 71.08mm for the first surface and -71.08mm for the second surface. The back focal length (BFL) is 67.48mm. The lens is made of n-BK7 Schott, a common optical glass with a high refractive index and low dispersion.
This lens is designed to work with a wavelength of 587.6nm. It is important to note that the lens does not have any coating, which could affect its performance in certain applications. However, its simple design and high-quality material make it a versatile option for various optical systems.