49-941 15 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=20mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- 20 mm
- R1
- 14.01 mm
- R2
- -11.36 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-SF57
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.854148364121864
- λ
- 550 nm
- B1
- 1.87543831
- C1
- 0.0141749518 μm2
- B2
- 0.37375749
- C2
- 0.0640509927 μm2
- B3
- 2.30001797
- C3
- 177.389795 μm2
49-941 15 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=20mm VIS 0° 425-675nm
The 49-941 is a high-quality Achromatic Doublet Lens, boasting a 15 mm diameter and an effective focal length (EFL) of 20mm. This lens is designed for visible light applications, with a wavelength range of 425-675nm, and features a standard antireflection coating on both the front and back surfaces.
The lens is composed of two elements: N-BAF10 and N-SF57, both from Schott. The N-BAF10 element has a radius of curvature (R1) of 14.01, while the N-SF57 element has an R1 of -11.36 and an R2 of -44.21. The lens's edge thickness is 5.98mm, and its center thickness is 6.8mm, with an additional 2mm of material at the center-front for added durability.
The 49-941 is a multiplet lens, meaning it is composed of multiple elements to correct optical aberrations. This design ensures high-quality imaging, making it suitable for a wide range of applications. The lens is available from Edmund Optics, and the provided weblink indicates that it is currently in stock.
