89-175 25mm Dia. x 25mm 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
- 25 mm
- BFL
- 22.47 mm
- R1
- 31.94 mm
- R2
- -31.94 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
89-175 25mm Dia. x 25mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 89-175 is a Double-Convex Lens, a type of Spherical Lens, sourced from Edmund Optics. This lens boasts a base shape of Circular geometry, with a diameter of 25mm and a thickness edge of 2.9mm. The thickness center measures 8mm, and the Effective Focal Length (EFL) is 25mm. The lens features a front and back coating of EDM VIS EXT, providing excellent visual enhancement within the wavelength range of 350-700nm.
The lens curvature is defined by two radii: R1, which is 31.94mm, and R2, which is -31.94mm, indicating a concave surface. The Back Focal Length (BFL) is 22.47mm, and both the Inner and Outer Radius are 0mm. The lens is made from n-SF5 Schott, a high-quality material known for its excellent optical properties.
This lens is designed for use within the visible light spectrum, making it suitable for a wide range of applications. Its double-convex design allows for efficient light gathering and focusing, making it an ideal choice for various optical systems. The lens's VIS-EXT coating enhances its light transmission capabilities, further boosting its performance in visual applications.
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