89-259 20mm Dia. x 30mm 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
- 30 mm
- BFL
- 28.2 mm
- R1
- 30.08 mm
- R2
- -30.08 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
89-259 20mm Dia. x 30mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
This is a high-quality double-convex lens from the renowned optical components manufacturer, Edmund Optics. The lens, identified as 89-259, boasts a diameter of 20mm and a focal length of 30mm, making it suitable for a wide range of optical applications.
The lens is made from Schott's n-BK7 glass, a popular material in the optical industry due to its excellent optical properties and versatility. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 30.08mm for the first surface and -30.08mm for the second surface. This geometry results in a back focal length of 28.2mm and an effective focal length of 30mm.
The lens is coated with YAG-BBAR, a highly durable and broadband anti-reflection coating that enhances its performance in the spectral range of 500-1100nm. This coating reduces surface reflections, thereby increasing transmission and improving image quality. The coating is applied on both the front and back surfaces of the lens, ensuring optimal performance from all angles.
The lens is currently in stock, as indicated by its valid weblink status. It is available for purchase through the vendor's website, providing a convenient and reliable source for users seeking to acquire this product.