89-258 20mm 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
- 20 mm
- EFL
- 25 mm
- BFL
- 23.86 mm
- R1
- 38.34 mm
- R2
- -38.34 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
89-258 20mm Dia. x 25mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
The 89-258 is a high-quality double-convex lens, sourced from the renowned optical components manufacturer, Edmund Optics. This lens, with a diameter of 20mm and a focal length of 25mm, is designed for use in a wide range of optical applications, particularly those requiring broadband anti-reflection (BBAR) coating.
The lens is made from n-SF11 Schott, a high-index glass with excellent optical properties. The double-convex geometry, with radii of curvature of 38.34mm for both the front and rear surfaces, provides superior focusing capabilities. The center thickness of the lens is 4mm, while the edge thickness is 1.35mm, ensuring robustness and durability.
The lens features a broadband anti-reflection coating, specifically YAG-BBAR, which is designed to operate within the wavelength range of 500-1100nm. This coating significantly reduces surface reflections, thereby enhancing transmission and improving overall system performance.
The 89-258 is currently in stock and available for immediate shipping. For more detailed specifications or to place an order, please visit the provided weblink.
