67-521-INK 15.0mm Dia. x 45.0mm 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
- 15 mm
- EFL
- 25 mm
- BFL
- 22.5 mm
- R1
- 12.92 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
67-521-INK 15.0mm Dia. x 45.0mm FL; NIR II; Inked; Plano-Convex Lens NIR II 750-1550nm
The 67-521-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 15.0mm, is designed for use in the Near-Infrared II (NIR II) spectrum, specifically for wavelengths between 750nm and 1550nm. The lens features a front and back coating of edm nir-ii std curve, enhancing its performance in the NIR II range.
The lens has a thickness of 1.4mm at the edge and 3.8mm at the center, with an effective focal length (EFL) of 25mm. The front surface of the lens has a radius of curvature (R1) of 12.92mm, and the back focal length (BFL) is 22.5mm. The lens is made of N-BK7 Schott, a popular optical glass known for its excellent transparency in the visible and near-infrared regions.
The lens is inked, a process that typically involves applying a dye or paint to the lens to enhance contrast or mark it for identification. This feature can be particularly useful in applications where the lens needs to be easily identifiable or where contrast enhancement is beneficial.
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