49-302 5 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=20mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 5 mm
- EFL
- 20 mm
- R1
- 14.11 mm
- R2
- -8.63 mm
Material 1
- Name
- N-BAF10
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6730569473646495
- λ
- 550 nm
- B1
- 1.5851495
- C1
- 0.00926681282 μm2
- B2
- 0.143559385
- C2
- 0.0424489805 μm2
- B3
- 1.08521269
- C3
- 105.613573 μm2
Material 2
- Name
- N-SF10
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7336618876174243
- λ
- 550 nm
- B1
- 1.62153902
- C1
- 0.0122241457 μm2
- B2
- 0.256287842
- C2
- 0.0595736775 μm2
- B3
- 1.64447552
- C3
- 147.468793 μm2
49-302 5 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=20mm VIS-NIR 400-1000nm
The 49-302 is a high-quality achromatic doublet lens, designed and manufactured by Edmund Optics. This lens, with a 5 mm diameter, is specifically engineered for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning from 400 to 1000nm. The achromatic design ensures minimal chromatic aberration, making it an ideal choice for a wide range of optical applications.
The lens features an effective focal length (EFL) of 20mm, providing a compact and efficient optical solution. The geometry of the lens includes an edge thickness of 2.38mm, an inner radius of 0, and an outer radius of 0. The first radius of curvature (r1) is 14.11mm, while the second radius (r2) is -8.63mm, and the third radius (r3) is -75.59mm. The center thickness of the lens is 1.61mm, and the center thickness 'a' is 1.03mm.
The lens is composed of two types of glass, N-BAF10 and N-SF10, both from Schott. These glasses are known for their excellent optical properties and are commonly used in high-performance optical systems. The lens is coated with Edmund Optics' VIS-NIR coating (edm visnir0sp2002000) on both the front and back surfaces, enhancing its transmission capabilities across the VIS-NIR spectrum.
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