63-617 20mm Dia. x 60mm FL; VIS 0deg Coated; Double-Convex Lens VIS 0deg 425-675nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 60 mm
- BFL
- 58.67 mm
- R1
- 61.33 mm
- R2
- -61.33 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
20mm Diameter x 60mm FL Double-Convex Lens with Visible Light Coating from Edmund Optics
This item is a 20mm diameter x 60mm focal length double-convex lens, sourced from the renowned optical components vendor, Edmund Optics. The lens is designed for use with visible light, specifically within the wavelength range of 425-675nm.
The lens is made from Schott's n-BK7 glass, a popular material in optical systems due to its excellent optical properties and wide transparency range. The double-convex geometry, characterized by two spherical surfaces curving inward, is designed to minimize spherical aberration and provide superior image quality.
The lens features a front and back coating of edm vis-0 std curve, a type of anti-reflective coating that enhances transmission and reduces surface reflections. This coating is particularly beneficial when working with visible light, improving the overall efficiency and clarity of the optical system.
The lens has a center thickness of 4mm and an edge thickness of 2.36mm, providing a robust and durable structure. The effective focal length (EFL) is 60mm, and the back focal length (BFL) is 58.67mm. The first and second radii of curvature are 61.33mm and -61.33mm, respectively.