89-182 25mm Dia. x 125mm 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
- 125 mm
- BFL
- 123.84 mm
- R1
- 128.65 mm
- R2
- -128.65 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
89-182 25mm Dia. x 125mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
This is a 25mm diameter, 125mm focal length double-convex lens, sourced from the renowned optical components vendor, Edmund Optics. The lens is made from the high-quality material, n-BK7 Schott, which is known for its excellent optical properties and durability.
The lens features a VIS-EXT coating on both the front and back surfaces, which extends its usable wavelength range from 350nm to 700nm. This coating enhances the lens's performance by reducing surface reflections and increasing transmission, making it suitable for a wide range of applications within this wavelength range.
The lens's geometry is characterized by its double-convex shape, with radii of curvature of 128.65mm and -128.65mm for the first and second surfaces, respectively. This shape results in a back focal length of 123.84mm and an effective focal length of 125mm. The lens has a center thickness of 3.5mm and an edge thickness of 2.28mm, providing a robust and stable structure.