89-263 20mm Dia. x 80mm 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
- 80 mm
- BFL
- 78.67 mm
- R1
- 82 mm
- R2
- -82 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
89-263 20mm Dia. x 80mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
The 89-263 is a high-quality double-convex lens, boasting a 20mm diameter and a focal length of 80mm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.
The lens is crafted from the renowned material, n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties. The lens features a front and back coating of EDM YAGBBAR 500-1100, a broadband anti-reflection coating designed for use in the 500-1100nm wavelength range. This coating enhances the lens's performance by reducing surface reflections and increasing transmission.
The lens's geometry is meticulously designed, with an edge thickness of 2.78mm and a center thickness of 4mm. The front and back radii are 82mm and -82mm, respectively, resulting in a back focal length of 78.67mm. The lens's inner and outer radii are both 0, indicating a uniform curvature.
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