89-264 25mm Dia. x 25mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
- 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
89-264 25mm Dia. x 25mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
The 89-264 is a high-quality Double-Convex Lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 25mm and a focal length of 25mm, is designed for use in the visible spectrum, specifically at a wavelength of 587.6nm.
The lens is constructed from n-SF5 Schott, a high-dispersion glass that offers excellent optical performance. It features a base shape of a circle, with a thickness at the edge of 2.9mm and a center thickness of 8mm. The effective focal length (EFL) is 25mm, while the back focal length (BFL) is 22.47mm. The first radius of curvature (R1) is 31.94mm, and the second radius of curvature (R2) is -31.94mm.
The 89-264 lens is coated with YAG-BBAR, a proprietary coating developed by Edmund Optics. This coating, designed for the wavelength range of 500-1100nm, provides superior anti-reflection properties, enhancing the overall light transmission and image quality. The coating is applied to both the front and back surfaces of the lens.
