89-173 20mm Dia. x 60mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
- 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
89-173 20mm Dia. x 60mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 89-173 is a high-quality double-convex lens, boasting a 20mm diameter and a focal length of 60mm. This lens is sourced from the reputable vendor, Edmund Optics, and is available for immediate purchase, as indicated by its valid in-stock weblink status.
The lens is constructed from the high-grade material, n-bk7 schott, which is renowned for its excellent optical properties. The base shape of the lens is circular, and it features a front and back coating of edm vis ext, which enhances its performance in the visible light spectrum, specifically between 350-700nm.
The geometry of the lens is meticulously designed, with a thickness edge of 2.36 and a thickness center of 4. The effective focal length (EFL) is 60, and the radii of the first and second surfaces are 61.33 and -61.33 respectively. The back focal length (BFL) is 58.67, and both the inner and outer radii are 0.
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