67-610 9mm Dia. x 18mm 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
- 9 mm
- EFL
- 18 mm
- BFL
- 17.12 mm
- R1
- 18.15 mm
- R2
- -18.15 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
67-610 9mm Dia. x 18mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
The 67-610 is a high-performance double-convex lens, designed and manufactured by Edmund Optics, specifically for use in the near-infrared (NIR) spectrum. This lens boasts a 9mm diameter and a focal length of 18mm, making it suitable for a wide range of applications that require precise optical performance in the NIR range.
The lens is constructed from N-BK7 Schott glass, a material well-known for its excellent optical properties, including high transmittance and low dispersion. This ensures that the lens delivers sharp, clear images with minimal chromatic aberration.
The 67-610 features a unique coating profile, with both the front and back surfaces coated with Edmund Optics' NIR-II standard curve coating. This coating is specifically designed to enhance the lens' performance in the NIR spectrum, improving its transmission and reducing reflections. The result is a lens that delivers superior image quality in the 750-1550nm range.
In terms of geometry, the lens has a center thickness of 2.6mm and an edge thickness of 1.47mm. The front and back radii of curvature are 18.15mm and -18.15mm, respectively, resulting in a back focal length of 17.12mm. The lens' spherical shape ensures excellent focus and minimal distortion.
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