49-779 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=50.8mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 50.8 mm
- R1
- 33.54 mm
- R2
- -27.27 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
49-779 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=50.8mm VIS 0° 425-675nm
The 49-779 is a high-quality Achromatic Doublet lens, boasting a 25.4 mm diameter and an effective focal length (EFL) of 50.8mm. This lens is designed for use within the visible light spectrum, specifically between 425-675nm.
The lens is composed of two elements, made from N-SSK8 and N-SF56 Schott glass, respectively. These materials are known for their excellent optical properties, contributing to the lens's high performance. The lens features a standard curve coating on both the front and back surfaces, denoted as 'edm vis-0 std curve'. This coating enhances the lens's durability and light transmission capabilities.
The lens's geometry is carefully designed for optimal performance. It has a thickness of 8.2mm at the edge and 8mm at the center, with an inner radius of 0mm and an outer radius of 0mm. The first and second radii (r1 and r2) are 33.54mm and -27.27mm, respectively, while the third radius (r3) is -101.5mm.
This lens is sourced from Edmund Optics and is currently in stock. For more information, including pricing and availability, please refer to the provided weblink.
