63-690 4 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=6mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 4 mm
- EFL
- 6 mm
- R1
- 4.24 mm
- R2
- -2.6 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
63-690 4 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=6mm MgF2 400-700nm
The 63-690 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a 4 mm diameter, is designed for use in the visible spectrum, specifically between 400-700nm, making it suitable for a wide range of optical applications.
The lens features a focal length (EFL) of 6mm, achieved through the careful combination of two different glass types, N-BAF10 and N-SF10, both from Schott. This combination helps to correct chromatic aberration, a common issue in optical systems, thereby improving the overall image quality.
The geometry of the lens is meticulously designed, with a thickness of 3.19mm at the edge and 2.8mm at the center. The lens also features a central thickness 'a' of 1mm, providing additional design flexibility. The radii of the lens surfaces are R1 = 4.24mm, R2 = -2.6mm, and R3 = -18.9mm, which contribute to the lens's excellent optical performance.
The lens is coated with Edmund Optics' standard MgF2 coating on both the front and back surfaces, ensuring high transmission and durability. This coating is designed to provide a standard curve, ensuring consistent performance across a wide range of applications.
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