17-001 25mm Dia. N-SF6 Precision Aspheric Lens; EFL=18.75mm; NA=0.66 SWIR-Plus 900-1700nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 18.75 mm
- BFL
- 11.27 mm
- R1
- 15.1 mm
- R2
Material
- Name
- N-SF6
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.8051741184501493
- λ
- 587.6 nm
- B1
- 1.77931763
- C1
- 0.0133714182 μm2
- B2
- 0.338149866
- C2
- 0.0617533621 μm2
- B3
- 2.08734474
- C3
- 174.01759 μm2
17-001 25mm Dia. N-SF6 Precision Aspheric Lens; EFL=18.75mm; NA=0.66 SWIR-Plus 900-1700nm
The 17-001 is a high-precision aspheric lens, designed and manufactured by Edmund Optics. This lens is characterized by its 25mm diameter and a numerical aperture (NA) of 0.66, specifically designed for use in the shortwave infrared (SWIR) spectrum, between 900 and 1700nm.
The lens is made from N-SF6 Schott glass, a material known for its excellent transmission properties in the SWIR range. The aspheric design of the lens helps to reduce spherical aberration, a common issue in traditional spherical lenses, resulting in improved image quality and resolution.
The lens has an effective focal length (EFL) of 18.75mm, which determines the distance between the lens and the image sensor for a given magnification. The lens also features a front radius (R1) of 15.098mm and a back focal length (BFL) of 11.27mm.
The 17-001 is coated with Edmund Optics' SWIR-Plus 900-1700nm coating on both the front and back surfaces. This coating enhances the lens's transmission in the SWIR range, reducing reflection and increasing the amount of light that passes through the lens.
The lens has a center thickness of 13.5mm and an edge thickness of 7.97mm. The front and back surfaces of the lens are shaped asperically, with the front surface having a conic constant of -1.169836.
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