49-794-INK 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=76.2mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 76.2 mm
- R1
- 50.85 mm
- R2
- -40.06 mm
Material 1
- Name
- N-SSK8
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6203679865890697
- λ
- 550 nm
- B1
- 1.44857867
- C1
- 0.00869310149 μm2
- B2
- 0.117965926
- C2
- 0.0421566593 μm2
- B3
- 1.06937528
- C3
- 111.300666 μm2
Material 2
- Name
- N-SF56
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.791037231451858
- λ
- 550 nm
- B1
- 1.73562085
- C1
- 0.0129624742 μm2
- B2
- 0.317487012
- C2
- 0.0612884288 μm2
- B3
- 1.95398203
- C3
- 161.559441 μm2
49-794-INK 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=76.2mm VIS-NIR 400-1000nm
The 49-794-INK is a high-quality achromatic doublet lens, boasting a 25.4 mm diameter and an effective focal length (EFL) of 76.2mm. This lens is designed for use in the visible (VIS) and near-infrared (NIR) spectrum, specifically catering to the wavelength range of 400-1000nm.
The lens is composed of two elements, made from N-SSK8 and N-SF56 Schott glass, which are renowned for their excellent optical properties. The first element has a radius of curvature (R1) of 50.85mm, while the second element has an R1 of -40.06mm and an R2 of -148.78mm. The center thickness of the lens is 7mm, with a 3mm thickness at the edge.
The 49-794-INK lens is coated with Edmund Optics' VIS-NIR-0SP2002000 coating on both the front and back surfaces, enhancing its performance in the specified wavelength range. This lens is a multiplet, meaning it is composed of multiple elements, and it has a circular base shape.
The lens is currently in stock and available for purchase from Edmund Optics. For more information, including pricing and availability, please refer to the provided weblink.
