49-390 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 50 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=100mm VIS-NIR 400-1000nm
The 49-390 is a high-quality achromatic doublet lens, boasting a 50 mm diameter and a focal length of 100 mm, specifically designed for the visual (VIS) and near-infrared (NIR) spectrum, spanning 400-1000 nm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase through their website.
The lens is constructed from two types of Schott glass, N-BAF10 and N-SF10, which are renowned for their excellent optical properties. The lens features a sophisticated geometry, with an inner radius of 0 mm, an outer radius of 0 mm, and a central thickness of 13.92 mm. The edge thickness measures 12.55 mm, while the central thickness 'a' is 4 mm. The lens's effective focal length (EFL) is 100 mm, making it suitable for a wide range of optical applications.
The lens is coated with Edmund Optics' proprietary VIS-NIR coating, denoted as edm visnir0sp2002000, which is applied to both the front and back surfaces. This coating enhances the lens's performance in the VIS-NIR spectrum, ensuring optimal light transmission and reducing unwanted reflections.
The 49-390 is a multiplet lens, meaning it is composed of multiple elements. This design helps to correct chromatic aberrations, a common issue in optical systems, thereby improving the overall image quality. The lens's base shape is circular, contributing to its compact design and ease of integration into various optical systems.
