49-792 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=50.8mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 50.8 mm
- R1
- 33.54 mm
- R2
- -27.27 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
49-792 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=50.8mm VIS-NIR 400-1000nm
The 49-792 is a high-quality achromatic doublet lens from Edmund Optics, designed for use in the visible (VIS) and near-infrared (NIR) spectrum, specifically catering to the wavelength range of 400-1000nm. This lens is a multiplet, meaning it is composed of multiple optical elements, in this case, two, to achieve superior optical performance.
The lens features a 25.4mm diameter and an effective focal length (EFL) of 50.8mm, making it suitable for a wide range of optical applications. The lens is constructed from N-SSK8 and N-SF56 Schott glass, which are renowned for their excellent optical properties and durability.
The 49-792 lens is coated with Edmund Optics' VIS-NIR0SP2002000 coating on both the front and back surfaces. This anti-reflection coating is designed to minimize surface reflections and increase transmission in the VIS-NIR range, further enhancing the lens's performance.
The lens geometry includes a thickness of 8.2mm at the edge, a center thickness of 8mm, and a center thickness 'a' of 3.5mm. The lens's radii are 33.54mm for the first surface, -27.27mm for the second surface, and -101.5mm for the third surface.
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