49-390-INK 50 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=100mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 100 mm
- R1
- 69.28 mm
- R2
- -46.95 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
49-390-INK 50 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=100mm VIS-NIR 400-1000nm
The 49-390-INK is a high-quality achromatic doublet lens, designed and manufactured by Edmund Optics. This lens, with a diameter of 50 mm, is specifically engineered for use in the visible to near-infrared spectrum, spanning from 400 to 1000 nm. The lens is part of the EFL=100mm series, ensuring a focal length of 100 mm, which is a common choice for many optical applications due to its versatility.
The lens is constructed from two types of glass, N-BAF10 and N-SF10, both from Schott. These glasses are known for their excellent optical properties, making them ideal for use in high-precision optical systems. The lens features a front and back coating of EDMP VIS-NIR 0SP 2002000, a broadband anti-reflection coating that further enhances the lens' performance by reducing surface reflections.
The lens geometry is carefully designed, with an outer radius of 0 and an inner radius of 0, indicating a simple, circular shape. The edge thickness is 12.55 mm, while the center thickness is 13.92 mm. The lens also features a central thickness 'a' of 4 mm. The curvature radii, r1 and r2, are 69.28 mm and -46.95 mm, respectively, while r3 is -446.01 mm.
