89-262 20mm Dia. x 60mm 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
- 60 mm
- BFL
- 58.67 mm
- R1
- 61.33 mm
- R2
- -61.33 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
89-262 20mm Dia. x 60mm 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 89-262, boasts a diameter of 20mm and a focal length of 60mm, 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 high chemical resistance. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 61.33mm for both the front and rear surfaces. This geometry results in a back focal length of 58.67mm and an effective focal length of 60mm.
The lens is coated with YAG-BBAR on both the front and back surfaces, providing superior anti-reflection properties within the wavelength range of 500-1100nm. This coating enhances the lens's performance in transmitting and focusing light, reducing unwanted reflections and increasing the overall efficiency of the optical system.
The lens's dimensions are as follows: the edge thickness is 2.36mm, while the center thickness is 4mm. The lens is currently in stock, as indicated by the "weblink status" field in the item data.