45-885 20mm Dia. x 30mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
- 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
45-885 20mm Dia. x 30mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 45-885 is a high-quality double-convex lens, boasting a 20mm diameter and a 30mm focal length. This lens is sourced from the reputable optical vendor, Edmund Optics, and is readily available for your optical system requirements.
The lens is fabricated from the renowned N-BK7 glass by Schott, a material known for 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 R1 and R2 measured at 30.08mm and -30.08mm, respectively. This geometry results in a back focal length (BFL) of 28.2mm and an effective focal length (EFL) of 30mm.
The lens's edge thickness is 1.88mm, while the center thickness is 5.3mm, providing robustness and durability. The lens is coated with the EDM VIS-NIR 0SP 200-2000 coating on both the front and back surfaces, ensuring optimal performance within the visible to near-infrared spectrum (400-1000nm).
This lens is an ideal choice for applications demanding high-performance optical components, such as imaging systems, beam shaping, and optical instrumentation. With its wide spectral range, superior coating, and robust construction, the 45-885 lens is a versatile and reliable addition to any optical system.
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