38-391-INK 9.0mm Dia. x 25mm FL; NIR II; Inked; Plano-Convex Lens NIR II 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- 20 mm
- BFL
- 18.55 mm
- R1
- 10.34 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
38-391-INK 9.0mm Dia. x 25mm FL; NIR II; Inked; Plano-Convex Lens NIR II 750-1550nm
The 38-391-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a 9.0mm diameter, is designed for use in the Near-Infrared II (NIR II) spectrum, specifically for wavelengths between 750 and 1550nm. The lens is inked, a feature that aids in its identification and handling.
The lens's geometry includes a thickness of 1.17mm at the edge and 2.2mm at the center. It has an effective focal length (EFL) of 20mm, making it suitable for applications requiring a longer focal length. The lens's front radius of curvature (R1) is 10.34mm, and the back focal length (BFL) is 18.55mm. The lens does not have an inner radius or an outer radius.
The lens is made of N-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number. The lens's front and back surfaces are coated with the EDM NIR-II STD CURVE coating, designed to enhance its performance in the NIR II spectrum.
Please note that the vendor, Edmund Optics, lists this item as in stock at the provided weblink, making it readily available for your optical needs.