47-901 18mm Dia. x 27mm 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
- 18 mm
- EFL
- 27 mm
- BFL
- 25.25 mm
- R1
- 27.08 mm
- R2
- -27.08 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
47-901 18mm Dia. x 27mm FL; VIS 0deg Coated; Double-Convex Lens VIS 0deg 425-675nm
The 47-901 is a high-quality double-convex lens, boasting a diameter of 18mm and a focal length of 27mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for immediate purchase, as indicated by its valid weblink status.
The lens is constructed from the esteemed N-BK7 glass from Schott, a material known for its excellent optical properties. The base shape of the lens is circular, and it features a standard spherical geometry. The lens has an inner radius of 0mm and an outer radius of 0mm, with a thickness at the edge of 2.42mm and a center thickness of 5.5mm. The effective focal length (EFL) of the lens is 27mm, and the back focal length (BFL) is 25.25mm.
The 47-901 lens is coated with the EDM VIS-0 standard curve on both the front and back surfaces. This coating enhances the lens's performance within the visible light spectrum, specifically between 425nm and 675nm. The lens is designed to provide zero degrees of visual field (VIS 0deg), ensuring a narrow, focused beam of light.
