89-214 5mm Dia. x 20mm 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
- 5 mm
- EFL
- 20 mm
- BFL
- 19.5 mm
- R1
- 20.41 mm
- R2
- -20.41 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
89-214 5mm Dia. x 20mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
This is a high-quality Double-Convex Lens, sourced from the renowned optical components vendor, Edmund Optics. The lens, with a diameter of 5mm and a focal length of 20mm, is designed for use in a wide range of optical applications, particularly those requiring broadband anti-reflection (BBAR) coating.
The lens is made from the high-grade material, n-BK7 Schott, which is known for its excellent optical properties and durability. The double-convex shape of the lens, with radii of curvature of 20.41mm for both the front and back surfaces, ensures efficient light gathering and focusing.
The lens features a YAG-BBAR coating on both the front and back surfaces, designed to operate within the wavelength range of 500-1100nm. This coating significantly reduces surface reflections, thereby enhancing the overall transmission efficiency of the lens.
The lens has a thickness of 1.19mm at the edge and 1.5mm at the center, providing robustness and structural integrity. The back focal length (BFL) of the lens is 19.5mm, which is a critical parameter for designing optical systems.
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