33-418 40mm Dia. x 200mm 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
- 40 mm
- EFL
- 200 mm
- BFL
- 197.35 mm
- R1
- 205.35 mm
- R2
- -205.35 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
33-418 40mm Dia. x 200mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
The 33-418 is a high-quality double-convex lens, designed and manufactured by Edmund Optics, a leading global provider of optical components. This lens boasts a 40mm diameter and a focal length of 200mm, making it suitable for a wide range of applications that require precise optical performance.
The lens is constructed from N-BK7 Schott glass, a popular material due to its excellent optical properties and versatility. The base shape of the lens is circular, and it features a spherical geometry with a center thickness of 8mm and an edge thickness of 6.05mm. The effective focal length (EFL) is 200mm, and the back focal length (BFL) is 197.35mm. The radii of curvature for the first and second surfaces are 205.35mm and -205.35mm, respectively.
The 33-418 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 night vision, thermal imaging, and spectral analysis.
