67-674 50mm Dia. x 100mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 100 mm
- BFL
- 96.65 mm
- R1
- 101.63 mm
- R2
- -101.63 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
67-674 50mm Dia. x 100mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
The 67-674 is a high-quality double-convex lens, designed and manufactured by Edmund Optics, a leading global provider of optical components. This lens boasts a 50mm diameter and a focal length of 100mm, making it suitable for a wide range of applications.
The lens is constructed from N-BK7 Schott glass, a popular material due to its excellent optical properties and versatility. The base shape is circular, and the lens features a double-convex geometry, with radii of curvature of 101.63mm for the first surface and -101.63mm for the second surface. This geometry results in a back focal length of 96.65mm.
The 67-674 lens is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces. This coating is specifically designed for the near-infrared spectrum, covering the wavelength range of 750-1550nm. It enhances the lens' performance by reducing surface reflections and increasing transmission, thereby improving overall system efficiency.
The lens has a thickness of 3.76mm at the edge and 10mm at the center. The inner and outer radii are 0mm, indicating a uniform curvature across the lens surface. The lens's effective focal length (EFL) is 100mm, which is the distance from the lens's secondary focal point to the lens center.
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