67-612 9mm Dia. x 36mm 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
- 36 mm
- BFL
- 35.15 mm
- R1
- 36.77 mm
- R2
- -36.77 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
67-612 9mm Dia. x 36mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
The 67-612 is a high-performance double-convex lens, designed for use in the near-infrared (NIR) spectrum, specifically between 750-1550nm. This lens is sourced from Edmund Optics, a leading provider of optical components.
The lens boasts a 9mm diameter and a focal length of 36mm, making it suitable for a wide range of applications. The double-convex geometry, with radii of curvature of 36.77mm and -36.77mm, ensures excellent image quality and low distortion. The lens has a center thickness of 2.55mm and an edge thickness of 2mm, providing robustness and durability.
The lens is made from N-BK7 Schott glass, a material renowned for its excellent optical properties and versatility. This is further enhanced by the lens's coating, which is specifically designed for NIR II applications. The coating, applied to both the front and back surfaces, ensures high transmission and low reflectance across the NIR II spectrum.
The lens's effective focal length (EFL) is 36mm, and its back focal length (BFL) is 35.15mm. The lens has no inner or outer radius, indicating a uniform thickness across the lens.