49-922 20.0mm Dia. x 35.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 35 mm
- BFL
- 32.04 mm
- R1
- 18.09 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
49-922 20.0mm Dia. x 35.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm
The 49-922 is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 20.0mm and a focal length of 35.0mm, making it a compact yet powerful optical component. The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion.
The lens features a Plano-Convex geometry, where one side is flat (Plano) and the other side is curved (Convex). This design allows for efficient light collection and focusing, making it ideal for various applications. The lens's inner radius is 0mm, and the outer radius is also 0mm, indicating a uniform curvature.
The 49-922 lens is coated with edm visnir0sp2002000 on both the front and back surfaces. This coating enhances its performance in the visible (VIS) and near-infrared (NIR) spectrum, specifically between 400-1000nm. The coating reduces surface reflections, improving light transmission and image quality.
In terms of dimensions, the lens has a thickness of 1.48mm at the edge and 4.5mm at the center. This thickness distribution ensures optimal light bending and focusing. The lens's effective focal length (EFL) is 35.0mm, which is the distance from the lens's center to the focal point. The back focal length (BFL) is 32.04mm, which is the distance from the lens's rear surface to the focal point.
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