45-290 6mm Dia. x 36mm FL Uncoated; Double-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6 mm
- EFL
- 36 mm
- BFL
- 35.33 mm
- R1
- 36.87 mm
- R2
- -36.87 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
45-290 6mm Dia. x 36mm FL Uncoated; Double-Convex Lens
The 45-290 is a 6mm diameter, double-convex lens with a 36mm focal length, sourced from the renowned optical component vendor, 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 spherical geometry, with both surfaces curved outwards. The first radius of curvature (R1) is 36.87mm, while the second radius (R2) is -36.87mm, indicating a symmetrical design. The lens's edge thickness is 1.76mm, and the center thickness is 2mm, providing a robust structure.
The effective focal length (EFL) of the lens is 36mm, which is the distance from the lens's center to the point where parallel rays of light converge. The back focal length (BFL) is 35.33mm, which is the distance from the lens's rear surface to the point where the converged rays intersect.
The lens is made of N-BK7 Schott glass, a popular material for optical lenses due to its excellent optical properties and wide transparency range. The lens is designed to operate at a wavelength of 587.6nm.
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