49-775 12.7 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=38.1mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 38.1 mm
- R1
- 25.43 mm
- R2
- -20.03 mm
Material 1
- Name
- N-SSK8
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6203679865890697
- λ
- 550 nm
- B1
- 1.44857867
- C1
- 0.00869310149 μm2
- B2
- 0.117965926
- C2
- 0.0421566593 μm2
- B3
- 1.06937528
- C3
- 111.300666 μm2
Material 2
- Name
- N-SF56
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.791037231451858
- λ
- 550 nm
- B1
- 1.73562085
- C1
- 0.0129624742 μm2
- B2
- 0.317487012
- C2
- 0.0612884288 μm2
- B3
- 1.95398203
- C3
- 161.559441 μm2
49-775 12.7 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=38.1mm VIS 0° 425-675nm
The 49-775 is a high-quality Achromatic Doublet lens, boasting a 12.7 mm diameter and an effective focal length (EFL) of 38.1mm. This lens is designed for use within the visible light spectrum, specifically between 425-675nm.
The lens is composed of two types of Schott glass, N-SSK8 and N-SF56, which are renowned for their optical clarity and durability. The front and back surfaces of the lens are coated with the EDM VIS-0 standard curve coating, enhancing its light transmission capabilities and providing excellent protection against environmental factors.
The lens geometry is meticulously designed, with a thickness of 3.92mm at the edge and 3.5mm at the center. The inner and outer radii are 0mm, and the lens features a concave-convex-concave shape, with radii of curvature at 25.43mm, -20.03mm, and -74.39mm respectively. The lens also has a center thickness 'a' of 1.5mm.
This lens is sourced from Edmund Optics, a leading manufacturer of optical components, ensuring a high level of quality and reliability. The product link provided is valid and indicates that the lens is currently in stock, making it readily available for immediate use.
