49-942 15 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=60mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- 60 mm
- R1
- 37.23 mm
- R2
- -26.69 mm
Material 1
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5185223876207927
- λ
- 550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
Material 2
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771143911586193
- λ
- 550 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
49-942 15 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=60mm VIS 0° 425-675nm
The 49-942 is a high-quality achromatic doublet lens, boasting a 15 mm diameter and an effective focal length (EFL) of 60mm, specifically designed for the visible light spectrum ranging from 425 to 675nm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase on their official website.
The lens is meticulously crafted from two types of Schott glass: N-BK7 and N-SF5. This combination ensures superior optical performance, minimizing chromatic aberration and delivering sharp, clear images. The lens features a standard curve coating on both the front and back surfaces, further enhancing its light transmission capabilities and overall durability.
The geometry of the lens is optimized for a wide range of applications. It has an edge thickness of 4.37mm, a center thickness of 3.5mm, and a center thickness 'a' of 2mm. The lens's inner and outer radii are 0mm, and it features three curvature radii (r1, r2, and r3) of 37.23mm, -26.69mm, and -76.36mm, respectively. These specifications make the lens suitable for a wide range of optical systems.
