47-690 6.25 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=12.5mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6.25 mm
- EFL
- 12.5 mm
- R1
- 8.63 mm
- R2
- -5.29 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
47-690 6.25 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=12.5mm VIS 0° 425-675nm
The 47-690 is a high-quality achromatic doublet lens, boasting a 6.25 mm diameter and an effective focal length (EFL) of 12.5mm. This lens is designed for use within the visible light spectrum, specifically between 425-675nm.
The lens is composed of two types of glass, N-BAF10 and N-SF10, both from the reputable Schott brand. These materials are carefully selected to minimize chromatic aberration, a common issue in optics where different wavelengths of light are focused at different points.
The 47-690 features a standard curvature coating on both the front and back surfaces, denoted as 'edm vis-0 std curve'. This coating enhances the lens's durability and performance by reducing reflection and improving transmission.
The lens geometry is intricately designed with a center thickness of 3mm, an edge thickness of 3.12mm, and inner and outer radii of 0mm. The first and second radii are 8.63mm and -5.29mm, respectively, while the third radius is -51.17mm. The center thickness 'a' is 0.8mm.
This lens is a multiplet, meaning it is composed of multiple elements. The multiplet design allows for more precise control over optical properties, making it suitable for a wide range of applications.
The 47-690 is available from Edmund Optics, a leading provider of optical components. According to the vendor, the item is currently in stock, ensuring quick delivery for your optical project needs.
