89-141 9mm Dia. x 45mm 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
- 9 mm
- EFL
- 45 mm
- BFL
- 44.17 mm
- R1
- 46.08 mm
- R2
- -46.08 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
89-141 9mm Dia. x 45mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 89-141 is a high-quality spherical lens, boasting a double-convex design and a base shape of a circle. This lens, sourced from the reputable vendor Edmund Optics, is a versatile addition to any optical system, particularly those operating within the visible light spectrum.
The lens has a diameter of 9mm and a focal length of 45mm, making it a compact yet powerful component. The edge thickness is 2.06mm, while the center thickness is slightly greater at 2.5mm, indicating a robust construction. The effective focal length (EFL) is 45mm, and the back focal length (BFL) is 44.17mm, providing a clear understanding of the lens's optical properties.
The lens is made from n-BK7 Schott, a popular optical glass known for its excellent optical properties and durability. The front and back surfaces of the lens are coated with EDM VIS-EXT, a coating designed to enhance performance within the visible light spectrum, specifically between 350-700nm.