63-661 5mm Dia. x 20mm 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
- 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
63-661 5mm Dia. x 20mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 63-661 is a high-quality double-convex lens, sourced from the renowned optical components vendor, Edmund Optics. This lens, with a diameter of 5mm and a focal length of 20mm, is designed for use in the visible to near-infrared spectrum, spanning 400-1000nm.
The lens is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. It features a double-convex geometry, with radii of curvature of 20.41mm for both the front and back surfaces. This geometry provides a high degree of focusing power, making it suitable for a wide range of applications.
The 63-661 lens comes with a broadband anti-reflection coating, specifically the EDM VIS-NIR 0SP2002000 coating, on both the front and back surfaces. This coating is designed to minimize surface reflections and increase transmission in the visible to near-infrared spectrum, enhancing the lens's performance in various lighting conditions.
The lens has an edge thickness of 1.19mm and a center thickness of 1.5mm, providing a robust and durable structure. The back focal length is 19.5mm, and the effective focal length is 20mm, which is the distance from the lens's principal plane to the focal point.
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