67-662 30mm Dia. x 75mm 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
- 30 mm
- EFL
- 75 mm
- BFL
- 73.35 mm
- R1
- 76.67 mm
- R2
- -76.67 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
67-662 30mm Dia. x 75mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
The 67-662 is a high-quality double-convex lens, designed and manufactured by Edmund Optics, a leading global provider of optical components. This lens boasts a 30mm diameter and a focal length of 75mm, making it suitable for a wide range of applications.
The lens is constructed from N-BK7 Schott, a popular optical glass known for its excellent optical properties and versatility. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 76.67mm and -76.67mm for the first and second surfaces, respectively. This geometry results in a beneficial spherical aberration correction.
The lens has a central thickness of 4.96mm and an edge thickness of 2mm, providing robustness and durability. The effective focal length (EFL) is 75mm, and the back focal length (BFL) is 73.35mm, which should be considered when integrating this lens into an optical system.
The 67-662 lens is coated with Edmund Optics' NIR-II standard curve coating on both the front and back surfaces. This coating enhances the lens' performance in the near-infrared (NIR) spectrum, specifically between 750nm and 1550nm, making it ideal for applications such as NIR imaging, spectroscopy, and sensing.