49-953 15 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=20mm VIS-NIR 400-1000nm
- 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
49-953 15 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=20mm VIS-NIR 400-1000nm
The 49-953 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is specifically designed for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning 400-1000nm. The lens features a 15mm diameter and an effective focal length (EFL) of 20mm, making it suitable for a wide range of optical applications.
The lens is composed of two elements: N-BAF10 and N-SF57, both from Schott's extensive material library. These materials are carefully selected for their optical properties, contributing to the lens's overall performance. The lens is coated with Edmund Optics' VIS-NIR coating (edm visnir0sp2002000) on both the front and back surfaces, further enhancing its capabilities in the specified wavelength range.
The geometry of the lens is meticulously designed, with a center thickness of 6.8mm and edge thickness of 5.98mm. The lens's radii are also precisely engineered, with r1 at 14.01mm, r2 at -11.36mm, and r3 at -44.21mm. These specifications contribute to the lens's excellent imaging performance.
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