49-275 5 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=7.5mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 5 mm
- EFL
- 7.5 mm
- R1
- 5.56 mm
- R2
- -3.09 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
49-275 5 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=7.5mm VIS 0° 425-675nm
The 49-275 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor Edmund Optics. This lens is specifically designed for use within the visible light spectrum, spanning from 425 to 675 nanometers. The lens is characterized by its 5 mm diameter and an effective focal length (EFL) of 7.5 mm, making it a compact yet powerful optical component.
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 standard anti-reflection coating, known as EDM VIS-0 STD CURVE, on both the front and back surfaces. This coating enhances the lens's light transmission capabilities, reducing unwanted reflections and increasing the overall efficiency of the optical system.
The lens geometry is intricately designed, with a center thickness of 3.72 mm and an edge thickness of 3.98 mm. The lens's curved surfaces have radii of 5.56 mm and -3.09 mm for the first and second surfaces, respectively. The lens also features a third surface with a radius of -18.25 mm, which is typical of an achromatic doublet design.
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