47-893 4.5mm Dia. x 4.5mm 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
- 4.5 mm
- EFL
- 4.5 mm
- BFL
- 3.7 mm
- R1
- 6.58 mm
- R2
- -6.58 mm
Material
- Name
- N-LASF44
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.8041965061599254
- λ
- 587.6 nm
- B1
- 1.78897105
- C1
- 0.00872506277 μm2
- B2
- 0.38675867
- C2
- 0.0308085023 μm2
- B3
- 1.30506243
- C3
- 92.7743824 μm2
4.5mm Diameter x 4.5mm FL Double-Convex Lens with VIS-NIR Coating
This 4.5mm diameter x 4.5mm focal length (FL) double-convex lens, sourced from Edmund Optics, is a high-quality optical component designed for use in the visible to near-infrared (VIS-NIR) spectrum, specifically covering the 400-1000nm range.
The lens features a base shape of a circle and is constructed with a Schott n-lasf44 material, known for its excellent optical properties. The geometry of the lens includes a diameter of 4.5mm, a thickness at the edge of 1.8mm, and a center thickness of 2.6mm. The effective focal length (EFL) is 4.5mm, and the radii of curvature are 6.58mm for the first surface and -6.58mm for the second surface. The back focal length (BFL) is 3.7mm.
The lens is coated with a VIS-NIR coating, denoted as 'edm visnir0sp2002000' on both the front and back surfaces. This coating enhances the lens's performance in the VIS-NIR spectrum, providing improved transmission and reduced reflection.
The lens is a spherical lens, meaning it has a spherical surface. This type of lens is commonly used in various applications due to its simplicity and versatility.
Please note that the vendor, Edmund Optics, indicates that this item is in stock as of the time of data collection. For the most accurate and up-to-date information, we recommend visiting the provided weblink.
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