89-166 18mm Dia. x 27mm 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
- 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
89-166 18mm Dia. x 27mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 89-166 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 in stock for immediate use. The lens is designed with a base shape of a circle, making it suitable for a wide range of applications.
The lens is made from the high-grade material n-BK7 Schott, ensuring durability and excellent optical performance. It features a wavelength of 587.6nm, making it ideal for applications that require precise light transmission in this range.
The 89-166 lens is coated with EDM VIS-EXT on both the front and back surfaces. This coating enhances the lens's ability to transmit light in the visible spectrum, specifically within the 350-700nm range. This makes the lens particularly useful in applications that require high light transmission, such as imaging and laser systems.
The lens's geometry is meticulously designed, with an inner radius of 0 and an outer radius of 0. The thickness at the edge is 2.42mm, while the center thickness is 5.5mm. The effective focal length (EFL) is 27mm, and the back focal length (BFL) is 25.25mm. The radii of curvature are R1 = 27.08mm and R2 = -27.08mm.