49-332 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=90mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 90 mm
- R1
- 55.8 mm
- R2
- -40.17 mm
Material 1
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5185223876207927
- λ
- 550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
Material 2
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771143911586193
- λ
- 550 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
49-332 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=90mm VIS-NIR 400-1000nm
The 49-332 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is specifically designed for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning 400-1000nm. The lens boasts a 12.5 mm diameter and an effective focal length (EFL) of 90mm, making it suitable for a wide range of optical applications.
The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass. These materials are chosen for their excellent optical properties, particularly their low dispersion, which helps to minimize chromatic aberration. The first element has a radius of curvature (R1) of 55.8, while the second element has an R1 of -40.17 and an R2 of -116.32. The center thickness of the lens is 1.98mm, with a thinner section of 1.6mm towards the edge.
The lens is coated with Edmund Optics' VIS-NIR coating (edm visnir0sp2002000), which is applied to both the front and back surfaces. This coating is designed to enhance the lens' performance in the VIS-NIR spectrum, improving transmission and reducing reflection.
The 49-332 is currently in stock and available for purchase through the Edmund Optics website. With its high-quality materials, precise construction, and broad spectral range, this lens is an excellent choice for a variety of optical applications.
