49-951-INK 9 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=22.5mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- 22.5 mm
- R1
- 14.79 mm
- R2
- -12.09 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
49-951-INK 9 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=22.5mm VIS-NIR 400-1000nm
The 49-951-INK is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a catalog number 49-951-INK, is specifically designed for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning from 400 to 1000nm.
The lens features a 9mm diameter and an effective focal length (EFL) of 22.5mm, making it suitable for a wide range of optical applications. The lens is constructed from two types of Schott glass, N-SSK8 and N-SF56, which are renowned for their excellent optical properties.
The 49-951-INK lens is coated with Edmund Optics' proprietary VIS-NIR coating (edm visnir0sp2002000) on both the front and back surfaces. This coating enhances the lens's performance in the VIS-NIR spectrum, reducing unwanted reflections and increasing transmission.
The lens's geometry is also noteworthy, with a center thickness of 3mm and edge thickness of 3.58mm. The lens's radii are R1=14.79mm, R2=-12.09mm, and R3=-45.72mm. The lens also features an inner radius of 0mm and an outer radius of 0mm.
