89-176 25mm Dia. x 30mm 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
- 25 mm
- EFL
- 30 mm
- BFL
- 28.31 mm
- R1
- 39.22 mm
- R2
- -39.22 mm
Material
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6727030184452947
- λ
- 587.6 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
89-176 25mm Dia. x 30mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 89-176 is a high-quality double-convex lens, boasting a 25mm diameter and a focal length of 30mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available in stock for immediate use. The lens is designed for visible light applications, with a wavelength of 587.6nm, and features a VIS-EXT coating on both the front and back surfaces.
The lens's geometry is meticulously crafted, with an edge thickness of 1.41mm and a center thickness of 5.5mm. The front and back radii of the lens are R1 = 39.22mm and R2 = -39.22mm, respectively, resulting in a back focal length of 28.31mm. The lens is made from n-SF5 Schott material, ensuring durability and high optical performance.
The VIS-EXT coating on the lens enhances its transmission capabilities in the visible spectrum, specifically between 350-700nm. This coating reduces surface reflections, thereby increasing the amount of light transmitted through the lens. The lens's spherical shape ensures minimal optical aberrations, making it suitable for a wide range of applications.