67-599 5mm 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
- 5 mm
- EFL
- 20 mm
- BFL
- 19.5 mm
- R1
- 20.41 mm
- R2
- -20.41 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
67-599 5mm Dia. x 20mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
The 67-599 is a high-quality double-convex lens, designed and manufactured by Edmund Optics, a leading global provider of optical components. This lens boasts a 5mm diameter and a focal length of 20mm, making it suitable for a wide range of applications that require precise optical performance.
The lens is constructed from N-BK7 Schott glass, a material known for its excellent optical properties and versatility. This glass is particularly well-suited for use in the near-infrared (NIR) spectrum, with a wavelength range of 750-1550nm. The lens is coated with Edmund Optics' standard NIR-II coating, which is specifically designed to enhance performance in the NIR spectrum.
The geometry of the lens is carefully crafted to ensure optimal performance. The lens has a center thickness of 1.5mm and an edge thickness of 1.19mm, providing a balance between durability and optical quality. The front and back radii of the lens are 20.41mm and -20.41mm respectively, contributing to its double-convex shape. The back focal length is 19.5mm, and both the inner and outer radii are 0mm.
