67-616 10mm Dia. x 20mm 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
- 10 mm
- EFL
- 20 mm
- BFL
- 19.16 mm
- R1
- 20.24 mm
- R2
- -20.24 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
67-616 10mm Dia. x 20mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
The 67-616 is a high-quality double-convex lens, 10mm in diameter and featuring a focal length of 20mm. This lens is sourced from Edmund Optics, a reputable vendor known for their extensive catalog of optical elements. The lens is designed for use in the near-infrared (NIR) spectrum, specifically between 750nm and 1550nm, making it ideal for a wide range of applications in this spectrum.
The lens is made from n-BK7 Schott, a popular material in optical systems due to its excellent optical properties and versatility. The double-convex geometry, with radii of curvature of 20.24mm on both sides, ensures a wide field of view and low distortion. The lens has a central thickness of 2.5mm and an edge thickness of 1.25mm, providing robustness and durability.
The lens features a standard NIR II coating on both the front and back surfaces. This coating, designated as 'edm nir-ii std curve', is specifically designed to enhance performance in the NIR spectrum. It reduces surface reflections and increases transmission, thereby improving the overall efficiency and quality of the optical system.