45-294 20mm Dia. x 30mm FL Uncoated; Double-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 30 mm
- BFL
- 28.2 mm
- R1
- 30.08 mm
- R2
- -30.08 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
45-294 20mm Dia. x 30mm FL Uncoated; Double-Convex Lens
The 45-294 is a 20mm diameter, double-convex lens with a 30mm focal length, sourced from Edmund Optics. This lens is uncoated and features a spherical shape, designed for use in a variety of optical applications.
The lens's geometry includes an edge thickness of 1.88mm and a center thickness of 5.3mm, contributing to its overall robustness and durability. The effective focal length (EFL) is 30mm, while the back focal length (BFL) measures 28.2mm. The radii of curvature for the first and second surfaces are 30.08mm and -30.08mm, respectively.
The lens is made from n-BK7 Schott glass, a popular material known for its excellent optical properties and versatility. It is designed to work optimally with a wavelength of 587.6nm. The lens's base shape is circular, making it suitable for a wide range of applications.
Notably, this lens does not come with any coating, which may affect its performance in certain applications. Users should consider this factor when selecting this lens for their specific needs.